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<h3>
Marge Bot pushed to branch wip/marge_bot_batch_merge_job
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/e142ec99e91ef4bdffd367780e945526ec6ef7e2">e142ec99</a></strong>
<div>
<span>by Sven Tennie</span>
<i>at 2019-04-18T03:19:00Z</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Typeset Big-O complexities with Tex-style notation (#16090)
E.g. use `\(\mathcal{O}(n^2)\)` instead of `/O(n^2)/`.
</pre>
</li>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/f0f495f0c4e16520adea83e82885dc08fa0c38a3">f0f495f0</a></strong>
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<span>by klebinger.andreas@gmx.at</span>
<i>at 2019-04-18T03:25:10Z</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Add an Outputable instance for SDoc with ppr = id.
When printf debugging this can be helpful.
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<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/6595ef0d54ebd86d1987cc2ac136ad5c9ac3b533">6595ef0d</a></strong>
<div>
<span>by Sylvain Henry</span>
<i>at 2019-04-18T04:01:43Z</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Gitlab: allow execution of CI pipeline from the web interface
[skip ci]
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<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/3d367bfa98b0ddf9e4a9fcab86def168f73ca503">3d367bfa</a></strong>
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<span>by Alp Mestanogullari</span>
<i>at 2019-04-18T04:01:45Z</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Hadrian: fix ghcDebugged and document it
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<h4>13 changed files:</h4>
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<a href="#587d266bb27a4dc3022bbed44dfa19849df3044c">
.gitlab-ci.yml
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<li class="file-stats">
<a href="#7cb0c3b8a55988740abfeec25509f3897dd73950">
compiler/utils/Outputable.hs
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<a href="#562ed4a0c3ba0e7044d774bc905fd02e659b9f75">
hadrian/doc/user-settings.md
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<a href="#03d49ccea328ec19e7a64a9b318248143aeea053">
hadrian/src/Expression.hs
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<a href="#a76b98705ef499cc867d50e433329007d6a77e2d">
hadrian/src/Packages.hs
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<a href="#52ac3fb9d79a975886f930e407b4c98c993e9e8e">
hadrian/src/Settings/Builders/Ghc.hs
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<a href="#7effb7b87b177d4253aa44d167e73a7082734a39">
libraries/base/Data/Foldable.hs
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<a href="#5fbb1164b5c674e4253da7e91b14facf09746bbd">
libraries/base/Data/OldList.hs
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<a href="#b607f20d31bcaad5939eb99b479fabe34bef1b9e">
libraries/base/Data/Semigroup/Internal.hs
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<a href="#2755f32886c2656f273820ffb30a84a5a8be7a3a">
libraries/base/GHC/Base.hs
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<a href="#acecd3813d90e82d1b376f7d6b9171838680d185">
libraries/base/GHC/List.hs
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<a href="#74e17c0bf97a400b0c087d6e9bfce1a721818e5b">
libraries/base/GHC/StableName.hs
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<a href="#4a3f7a7dc8423069dcc4f9133642af862b74af50">
libraries/base/System/Mem/StableName.hs
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<h4>Changes:</h4>
<li id="587d266bb27a4dc3022bbed44dfa19849df3044c">
<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#587d266bb27a4dc3022bbed44dfa19849df3044c"><strong>.gitlab-ci.yml</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="30" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -30,6 +30,7 @@ stages:</td>
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<td class="line_content noteable_line" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC30" class="line" lang="yaml"> <span class="pi">-</span> <span class="s" style="color: #d14;">/ghc-[0-9]+\.[0-9]+/</span></span>
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<pre style="margin: 0;"> <span id="LC31" class="line" lang="yaml"> <span class="pi">-</span> <span class="s" style="color: #d14;">merge_requests</span></span>
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<td class="line_content noteable_line" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC32" class="line" lang="yaml"> <span class="pi">-</span> <span class="s" style="color: #d14;">tags</span></span>
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<pre style="margin: 0;">+<span id="LC33" class="line" lang="yaml"> <span class="pi">-</span> <span class="s" style="color: #d14;">web</span></span>
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<pre style="margin: 0;"> <span id="LC34" class="line" lang="yaml"></span>
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<pre style="margin: 0;"> <span id="LC35" class="line" lang="yaml"><span class="c1" style="color: #998; font-style: italic;">############################################################</span></span>
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<pre style="margin: 0;"> <span id="LC36" class="line" lang="yaml"><span class="c1" style="color: #998; font-style: italic;"># Runner Tags</span></span>
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<br>
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<li id="7cb0c3b8a55988740abfeec25509f3897dd73950">
<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#7cb0c3b8a55988740abfeec25509f3897dd73950"><strong>compiler/utils/Outputable.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="327" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -327,6 +327,10 @@ data SDocContext = SDC</td>
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<pre style="margin: 0;"> <span id="LC327" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">IsString</span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC328" class="line" lang="haskell"> <span class="n" style="color: #333;">fromString</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">text</span></span>
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<pre style="margin: 0;"> <span id="LC329" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC330" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The lazy programmer's friend.</span></span>
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<pre style="margin: 0;">+<span id="LC331" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Outputable</span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<td class="diff-line-num new new_line" data-linenumber="332" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<pre style="margin: 0;">+<span id="LC332" class="line" lang="haskell"> <span class="n" style="color: #333;">ppr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">id</span></span>
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<pre style="margin: 0;">+<span id="LC333" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC334" class="line" lang="haskell"><span class="n" style="color: #333;">initSDocContext</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">DynFlags</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">PprStyle</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SDocContext</span></span>
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<pre style="margin: 0;"> <span id="LC335" class="line" lang="haskell"><span class="n" style="color: #333;">initSDocContext</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">sty</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SDC</span></span>
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<pre style="margin: 0;"> <span id="LC336" class="line" lang="haskell"> <span class="p">{</span> <span class="n" style="color: #333;">sdocStyle</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">sty</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#562ed4a0c3ba0e7044d774bc905fd02e659b9f75"><strong>hadrian/doc/user-settings.md</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -114,6 +114,21 @@ devel2WerrorFlavour :: Flavour</td>
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<pre style="margin: 0;"> <span id="LC114" class="line" lang="markdown"><span class="sb" style="color: #d14;">devel2WerrorFlavour = werror (developmentFlavour Stage2)</span></span>
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<pre style="margin: 0;"> <span id="LC115" class="line" lang="markdown"><span class="p">```</span></span>
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<pre style="margin: 0;"> <span id="LC116" class="line" lang="markdown"></span>
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<pre style="margin: 0;">+<span id="LC117" class="line" lang="markdown"><span class="gu" style="color: #800080; font-weight: 600;">### Linking GHC against the debugged RTS</span></span>
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<pre style="margin: 0;">+<span id="LC118" class="line" lang="markdown"></span>
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<pre style="margin: 0;">+<span id="LC119" class="line" lang="markdown">What was previously achieved by having <span class="sb" style="color: #d14;">`GhcDebugged=YES`</span> in <span class="sb" style="color: #d14;">`mk/build.mk`</span> can</span>
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<pre style="margin: 0;">+<span id="LC120" class="line" lang="markdown">be done by defining a custom flavour in the user settings file, one that</span>
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<pre style="margin: 0;">+<span id="LC121" class="line" lang="markdown">sets the <span class="sb" style="color: #d14;">`ghcDebugged`</span> field of <span class="sb" style="color: #d14;">`Flavour`</span> to <span class="sb" style="color: #d14;">`True`</span>, e.g:</span>
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<pre style="margin: 0;">+<span id="LC122" class="line" lang="markdown"></span>
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<pre style="margin: 0;">+<span id="LC123" class="line" lang="markdown"><span class="p">```</span><span class="nl"> haskell</span></span>
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<pre style="margin: 0;">+<span id="LC124" class="line" lang="markdown"><span class="n" style="color: #333;">quickDebug</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Flavour</span></span>
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<pre style="margin: 0;">+<span id="LC125" class="line" lang="markdown"><span class="n" style="color: #333;">quickDebug</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">quickFlavour</span> <span class="p">{</span> <span class="n" style="color: #333;">name</span> <span class="o" style="font-weight: 600;">=</span> <span class="s" style="color: #d14;">"dbg"</span><span class="p">,</span> <span class="n" style="color: #333;">ghcDebugged</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">True</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC126" class="line" lang="markdown"><span class="p">```</span></span>
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<pre style="margin: 0;">+<span id="LC127" class="line" lang="markdown"></span>
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<pre style="margin: 0;">+<span id="LC128" class="line" lang="markdown">Running <span class="sb" style="color: #d14;">`build --flavour=dbg`</span> will build a <span class="sb" style="color: #d14;">`quick`</span>-flavoured GHC and link</span>
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<pre style="margin: 0;">+<span id="LC129" class="line" lang="markdown">GHC, iserv, iserv-proxy and remote-iserv against the debugged RTS, by passing</span>
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<pre style="margin: 0;">+<span id="LC130" class="line" lang="markdown"><span class="sb" style="color: #d14;">`-debug`</span> to the commands that link those executables.</span>
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<pre style="margin: 0;">+<span id="LC131" class="line" lang="markdown"></span>
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<pre style="margin: 0;"> <span id="LC132" class="line" lang="markdown"><span class="gu" style="color: #800080; font-weight: 600;">## Packages</span></span>
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<pre style="margin: 0;"> <span id="LC133" class="line" lang="markdown"></span>
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<pre style="margin: 0;"> <span id="LC134" class="line" lang="markdown">Users can add and remove packages from particular build stages. As an example,</span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -7,7 +7,7 @@ module Expression (</td>
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<pre style="margin: 0;"> <span id="LC7" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC8" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- ** Predicates</span></span>
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<pre style="margin: 0;"> <span id="LC9" class="line" lang="haskell"> <span class="p">(</span><span class="o" style="font-weight: 600;">?</span><span class="p">),</span> <span class="nf" style="color: #900; font-weight: 600;">stage</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">stage0</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">stage1</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">stage2</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">notStage0</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">package</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">notPackage</span><span class="p">,</span></span>
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<pre style="margin: 0;">-<span id="LC10" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">libraryPackage</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">builder</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">way</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">input</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">inputs</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">output</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">outputs</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC10" class="line" lang="haskell"> <span class="idiff left"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">packageOneOf</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="nf" style="color: #900; font-weight: 600;">libraryPackage</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">builder</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">way</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">input</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">inputs</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">output</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">outputs</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC11" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC12" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- ** Evaluation</span></span>
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<pre style="margin: 0;"> <span id="LC13" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">interpret</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">interpretInContext</span><span class="p">,</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -44,6 +44,9 @@ stage s = (s ==) <$> getStage</td>
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<pre style="margin: 0;"> <span id="LC44" class="line" lang="haskell"><span class="n" style="color: #333;">package</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Package</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Predicate</span></span>
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<pre style="margin: 0;"> <span id="LC45" class="line" lang="haskell"><span class="n" style="color: #333;">package</span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">==</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">getPackage</span></span>
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<pre style="margin: 0;"> <span id="LC46" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC47" class="line" lang="haskell"><span class="n" style="color: #333;">packageOneOf</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Package</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Predicate</span></span>
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<pre style="margin: 0;">+<span id="LC48" class="line" lang="haskell"><span class="n" style="color: #333;">packageOneOf</span> <span class="n" style="color: #333;">ps</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(`</span><span class="n" style="color: #333;">elem</span><span class="p">`</span> <span class="n" style="color: #333;">ps</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">getPackage</span></span>
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<pre style="margin: 0;">+<span id="LC49" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC50" class="line" lang="haskell"><span class="cd">-- | This type class allows the user to construct both precise builder</span></span>
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<pre style="margin: 0;"> <span id="LC51" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- predicates, such as @builder (Ghc CompileHs Stage1)@, as well as predicates</span></span>
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<pre style="margin: 0;"> <span id="LC52" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- covering a set of similar builders. For example, @builder (Ghc CompileHs)@</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#a76b98705ef499cc867d50e433329007d6a77e2d"><strong>hadrian/src/Packages.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -5,10 +5,10 @@ module Packages (</td>
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<pre style="margin: 0;"> <span id="LC5" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">compareSizes</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">compiler</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">containers</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">deepseq</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">deriveConstants</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">directory</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC6" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">filepath</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">genapply</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">genprimopcode</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ghc</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ghcBoot</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ghcBootTh</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ghcCompact</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC7" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">ghcHeap</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ghci</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ghcPkg</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ghcPrim</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">haddock</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">haskeline</span><span class="p">,</span></span>
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<pre style="margin: 0;">-<span id="LC8" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">hsc2hs</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">hp2ps</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">hpc</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">hpcBin</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">integerGmp</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">integerSimple</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">iserv</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;"><span class="idiff left right">libffi</span></span><span class="p">,</span></span>
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<pre style="margin: 0;">-<span id="LC9" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">lib<span class="idiff left">iserv</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">mtl</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">parsec</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">pretty</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">primitive</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">process</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">rts</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff right">runGhc</span></span><span class="p">,</span></span>
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<pre style="margin: 0;">-<span id="LC10" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;"><span class="idiff left">stm</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">templateHaskell</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">terminfo</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">text</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">time</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">timeout</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">touchy</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff right">transformers</span></span><span class="p">,</span></span>
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<pre style="margin: 0;">-<span id="LC11" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">unlit</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">unix</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">win32</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">xhtml</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ghcPackages</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">isGhcPackage</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC8" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">hsc2hs</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">hp2ps</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">hpc</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">hpcBin</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">integerGmp</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">integerSimple</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">iserv</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;"><span class="idiff left right">iservProxy</span></span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC9" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">lib<span class="idiff left">ffi</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">libiserv</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">mtl</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">parsec</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">pretty</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">primitive</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">process</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">remoteIserv</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff right">rts</span></span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC10" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;"><span class="idiff left">runGhc</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">stm</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">templateHaskell</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">terminfo</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">text</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">time</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">timeout</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff right">touchy</span></span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC11" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;"><span class="idiff left">transformers</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="nf" style="color: #900; font-weight: 600;">unlit</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">unix</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">win32</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">xhtml</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ghcPackages</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">isGhcPackage</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC12" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC13" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- * Package information</span></span>
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<pre style="margin: 0;"> <span id="LC14" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">programName</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">nonHsMainPackage</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">autogenPath</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">programPath</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">timeoutPath</span><span class="p">,</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="78" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="78" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -78,6 +78,7 @@ hpcBin = util "hpc-bin" `setPath` "utils/hpc"</td>
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<pre style="margin: 0;"> <span id="LC78" class="line" lang="haskell"><span class="n" style="color: #333;">integerGmp</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lib</span> <span class="s" style="color: #d14;">"integer-gmp"</span></span>
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<pre style="margin: 0;"> <span id="LC79" class="line" lang="haskell"><span class="n" style="color: #333;">integerSimple</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lib</span> <span class="s" style="color: #d14;">"integer-simple"</span></span>
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<pre style="margin: 0;"> <span id="LC80" class="line" lang="haskell"><span class="n" style="color: #333;">iserv</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">util</span> <span class="s" style="color: #d14;">"iserv"</span></span>
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<pre style="margin: 0;">+<span id="LC81" class="line" lang="haskell"><span class="n" style="color: #333;">iservProxy</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">util</span> <span class="s" style="color: #d14;">"iserv-proxy"</span></span>
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<pre style="margin: 0;"> <span id="LC82" class="line" lang="haskell"><span class="n" style="color: #333;">libffi</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">top</span> <span class="s" style="color: #d14;">"libffi"</span></span>
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<pre style="margin: 0;"> <span id="LC83" class="line" lang="haskell"><span class="n" style="color: #333;">libiserv</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lib</span> <span class="s" style="color: #d14;">"libiserv"</span></span>
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<pre style="margin: 0;"> <span id="LC84" class="line" lang="haskell"><span class="n" style="color: #333;">mtl</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lib</span> <span class="s" style="color: #d14;">"mtl"</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -85,6 +86,7 @@ parsec = lib "parsec"</td>
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<pre style="margin: 0;"> <span id="LC86" class="line" lang="haskell"><span class="n" style="color: #333;">pretty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lib</span> <span class="s" style="color: #d14;">"pretty"</span></span>
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<pre style="margin: 0;"> <span id="LC87" class="line" lang="haskell"><span class="n" style="color: #333;">primitive</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lib</span> <span class="s" style="color: #d14;">"primitive"</span></span>
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<pre style="margin: 0;"> <span id="LC88" class="line" lang="haskell"><span class="n" style="color: #333;">process</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lib</span> <span class="s" style="color: #d14;">"process"</span></span>
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<pre style="margin: 0;">+<span id="LC89" class="line" lang="haskell"><span class="n" style="color: #333;">remoteIserv</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">util</span> <span class="s" style="color: #d14;">"remote-iserv"</span></span>
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<pre style="margin: 0;"> <span id="LC90" class="line" lang="haskell"><span class="n" style="color: #333;">rts</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">top</span> <span class="s" style="color: #d14;">"rts"</span></span>
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<pre style="margin: 0;"> <span id="LC91" class="line" lang="haskell"><span class="n" style="color: #333;">runGhc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">util</span> <span class="s" style="color: #d14;">"runghc"</span></span>
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<pre style="margin: 0;"> <span id="LC92" class="line" lang="haskell"><span class="n" style="color: #333;">stm</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lib</span> <span class="s" style="color: #d14;">"stm"</span></span>
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<li id="52ac3fb9d79a975886f930e407b4c98c993e9e8e">
<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#52ac3fb9d79a975886f930e407b4c98c993e9e8e"><strong>hadrian/src/Settings/Builders/Ghc.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -3,6 +3,7 @@ module Settings.Builders.Ghc (ghcBuilderArgs, haddockGhcArgs) where</td>
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<pre style="margin: 0;"> <span id="LC3" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Hadrian.Haskell.Cabal</span></span>
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<pre style="margin: 0;"> <span id="LC4" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Hadrian.Haskell.Cabal.Type</span></span>
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<pre style="margin: 0;"> <span id="LC5" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC6" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Flavour</span></span>
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<pre style="margin: 0;"> <span id="LC7" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Packages</span></span>
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<pre style="margin: 0;"> <span id="LC8" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Settings.Builders.Common</span></span>
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<pre style="margin: 0;"> <span id="LC9" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Settings.Warnings</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -69,6 +70,7 @@ ghcLinkArgs = builder (Ghc LinkHs) ? do</td>
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<pre style="margin: 0;"> <span id="LC70" class="line" lang="haskell"> <span class="n" style="color: #333;">useSystemFfi</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">expr</span> <span class="p">(</span><span class="n" style="color: #333;">flag</span> <span class="kt" style="color: #458; font-weight: 600;">UseSystemFfi</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC71" class="line" lang="haskell"> <span class="n" style="color: #333;">buildPath</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getBuildPath</span></span>
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<pre style="margin: 0;"> <span id="LC72" class="line" lang="haskell"> <span class="n" style="color: #333;">libffiName'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">libffiName</span></span>
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<pre style="margin: 0;">+<span id="LC73" class="line" lang="haskell"> <span class="n" style="color: #333;">debugged</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">ghcDebugged</span> <span class="o" style="font-weight: 600;"><$></span> <span class="n" style="color: #333;">expr</span> <span class="n" style="color: #333;">flavour</span></span>
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74
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<pre style="margin: 0;"> <span id="LC74" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC75" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">let</span></span>
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<pre style="margin: 0;"> <span id="LC76" class="line" lang="haskell"> <span class="n" style="color: #333;">dynamic</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Dynamic</span> <span class="p">`</span><span class="n" style="color: #333;">wayUnit</span><span class="p">`</span> <span class="n" style="color: #333;">way</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="112" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -110,6 +112,9 @@ ghcLinkArgs = builder (Ghc LinkHs) ? do</td>
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110
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112
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<pre style="margin: 0;"> <span id="LC112" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">pure</span> <span class="p">[</span> <span class="s" style="color: #d14;">"-L"</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">libDir</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">libDir</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">libDirs</span> <span class="p">]</span></span>
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111
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<pre style="margin: 0;"> <span id="LC113" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">rtsFfiArg</span></span>
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<pre style="margin: 0;"> <span id="LC114" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">darwin</span> <span class="o" style="font-weight: 600;">?</span> <span class="n" style="color: #333;">pure</span> <span class="p">(</span><span class="n" style="color: #333;">concat</span> <span class="p">[</span> <span class="p">[</span><span class="s" style="color: #d14;">"-framework"</span><span class="p">,</span> <span class="n" style="color: #333;">fmwk</span><span class="p">]</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">fmwk</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">fmwks</span> <span class="p">])</span></span>
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<pre style="margin: 0;">+<span id="LC115" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">debugged</span> <span class="o" style="font-weight: 600;">?</span> <span class="n" style="color: #333;">packageOneOf</span> <span class="p">[</span><span class="n" style="color: #333;">ghc</span><span class="p">,</span> <span class="n" style="color: #333;">iservProxy</span><span class="p">,</span> <span class="n" style="color: #333;">iserv</span><span class="p">,</span> <span class="n" style="color: #333;">remoteIserv</span><span class="p">]</span> <span class="o" style="font-weight: 600;">?</span></span>
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<pre style="margin: 0;">+<span id="LC116" class="line" lang="haskell"> <span class="n" style="color: #333;">arg</span> <span class="s" style="color: #d14;">"-debug"</span></span>
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<pre style="margin: 0;">+<span id="LC117" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC118" class="line" lang="haskell"> <span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC119" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC120" class="line" lang="haskell"><span class="n" style="color: #333;">findHsDependencies</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Args</span></span>
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<li id="7effb7b87b177d4253aa44d167e73a7082734a39">
<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#7effb7b87b177d4253aa44d167e73a7082734a39"><strong>libraries/base/Data/Foldable.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -181,8 +181,8 @@ class Foldable t where</td>
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181
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<pre style="margin: 0;"> <span id="LC181" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- use 'foldl'' instead of 'foldl'. The reason for this is that latter does</span></span>
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<pre style="margin: 0;"> <span id="LC182" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- not force the "inner" results (e.g. @z \`f\` x1@ in the above example)</span></span>
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<pre style="margin: 0;"> <span id="LC183" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- before applying them to the operator (e.g. to @(\`f\` x2)@). This results</span></span>
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<pre style="margin: 0;">-<span id="LC184" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- in a thunk chain <span class="idiff left right">@O(n)@ elements long, which then must be evaluated from</span></span></span>
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<pre style="margin: 0;">-<span id="LC185" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- the outside-in.</span></span>
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<pre style="margin: 0;">+<span id="LC184" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- in a thunk chain <span class="idiff left right">\(\mathcal{O}(n)\) elements long, which then must be</span></span></span>
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<pre style="margin: 0;">+<span id="LC185" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">evaluated from </span>the outside-in.</span></span>
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<pre style="margin: 0;"> <span id="LC186" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC187" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- For a general 'Foldable' structure this should be semantically identical</span></span>
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<pre style="margin: 0;"> <span id="LC188" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- to,</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#5fbb1164b5c674e4253da7e91b14facf09746bbd"><strong>libraries/base/Data/OldList.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -241,9 +241,9 @@ infix 5 \\ -- comment to fool cpp: https://downloads.haskell.org/~ghc/latest/doc</td>
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<pre style="margin: 0;"> <span id="LC241" class="line" lang="haskell"><span class="n" style="color: #333;">dropWhileEnd</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC242" class="line" lang="haskell"><span class="n" style="color: #333;">dropWhileEnd</span> <span class="n" style="color: #333;">p</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldr</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">xs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">p</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">xs</span> <span class="kr" style="font-weight: 600;">then</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
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<pre style="margin: 0;"> <span id="LC243" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC244" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(min(m,n))/. The 'stripPrefix' function drops the given prefix from a</span></span></span>
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<pre style="margin: 0;">-<span id="LC245" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">list. It returns 'Nothing' if the list did not start with the prefix given,</span></span></span>
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<pre style="margin: 0;">-<span id="LC246" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- or 'Just' the list after the prefix, if it does.</span></span>
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<pre style="margin: 0;">+<span id="LC244" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(min(m,n))\). The 'stripPrefix' function drops the given</span></span></span>
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<pre style="margin: 0;">+<span id="LC245" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">prefix from a list. It returns 'Nothing' if the list did not start with the</span></span></span>
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<pre style="margin: 0;">+<span id="LC246" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">prefix given, </span>or 'Just' the list after the prefix, if it does.</span></span>
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<pre style="margin: 0;"> <span id="LC247" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC248" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> stripPrefix "foo" "foobar"</span></span>
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<pre style="margin: 0;"> <span id="LC249" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Just "bar"</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -319,8 +319,8 @@ findIndices p ls = build $ \c n -></td>
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<pre style="margin: 0;"> <span id="LC319" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">in</span> <span class="n" style="color: #333;">foldr</span> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">n</span><span class="p">)</span> <span class="n" style="color: #333;">ls</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span></span>
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<pre style="margin: 0;"> <span id="LC320" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span> <span class="o" style="font-weight: 600;">/*</span> <span class="kt" style="color: #458; font-weight: 600;">USE_REPORT_PRELUDE</span> <span class="o" style="font-weight: 600;">*/</span></span>
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<pre style="margin: 0;"> <span id="LC321" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC322" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(min(m,n))/. The 'isPrefixOf' function takes two lists and returns 'True'</span></span></span>
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<pre style="margin: 0;">-<span id="LC323" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- iff the first list is a prefix of the second.</span></span>
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<pre style="margin: 0;">+<span id="LC322" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(min(m,n))\). The 'isPrefixOf' function takes two lists and</span></span></span>
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<pre style="margin: 0;">+<span id="LC323" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">returns 'True' </span>iff the first list is a prefix of the second.</span></span>
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<pre style="margin: 0;"> <span id="LC324" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC325" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> "Hello" `isPrefixOf` "Hello World!"</span></span>
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<pre style="margin: 0;"> <span id="LC326" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- True</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -388,11 +388,10 @@ dropLengthMaybe (_:x') (_:y') = dropLengthMaybe x' y'</td>
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<pre style="margin: 0;"> <span id="LC388" class="line" lang="haskell"><span class="n" style="color: #333;">isInfixOf</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Eq</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
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<pre style="margin: 0;"> <span id="LC389" class="line" lang="haskell"><span class="n" style="color: #333;">isInfixOf</span> <span class="n" style="color: #333;">needle</span> <span class="n" style="color: #333;">haystack</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">any</span> <span class="p">(</span><span class="n" style="color: #333;">isPrefixOf</span> <span class="n" style="color: #333;">needle</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">tails</span> <span class="n" style="color: #333;">haystack</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC390" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC391" class="line" lang="haskell"><span class="cd">-- | /O(n^2)/. The 'nub' function removes duplicate elements from a list.</span></span>
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<pre style="margin: 0;">-<span id="LC392" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- In particular, it keeps only the first occurrence of each element.</span></span>
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<pre style="margin: 0;">-<span id="LC393" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- (The name 'nub' means \`essence\'.)</span></span>
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<pre style="margin: 0;">-<span id="LC394" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- It is a special case of 'nubBy', which allows the programmer to supply</span></span>
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<pre style="margin: 0;">-<span id="LC395" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- their own equality test.</span></span>
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<pre style="margin: 0;">+<span id="LC391" class="line" lang="haskell"><span class="cd">-- | \(\mathcal{O}(n^2)\). The 'nub' function removes duplicate elements from a</span></span>
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<pre style="margin: 0;">+<span id="LC392" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- list. In particular, it keeps only the first occurrence of each element. (The</span></span>
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<pre style="margin: 0;">+<span id="LC393" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- name 'nub' means \`essence\'.) It is a special case of 'nubBy', which allows</span></span>
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<pre style="margin: 0;">+<span id="LC394" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- the programmer to supply their own equality test.</span></span>
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<pre style="margin: 0;"> <span id="LC395" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC396" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> nub [1,2,3,4,3,2,1,2,4,3,5]</span></span>
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<pre style="margin: 0;"> <span id="LC397" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- [1,2,3,4,5]</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -431,8 +430,8 @@ elem_by eq y (x:xs) = x `eq` y || elem_by eq y xs</td>
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<pre style="margin: 0;"> <span id="LC430" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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<pre style="margin: 0;"> <span id="LC431" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC432" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC434" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. 'delete' @x@ removes the first occurrence of @x@ from its list</span></span></span>
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<pre style="margin: 0;">-<span id="LC435" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- argument. For example,</span></span>
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<pre style="margin: 0;">+<span id="LC433" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). 'delete' @x@ removes the first occurrence of @x@ from</span></span></span>
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<pre style="margin: 0;">+<span id="LC434" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">its list </span>argument. For example,</span></span>
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<pre style="margin: 0;"> <span id="LC435" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC436" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> delete 'a' "banana"</span></span>
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<pre style="margin: 0;"> <span id="LC437" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- "bnana"</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -442,8 +441,8 @@ elem_by eq y (x:xs) = x `eq` y || elem_by eq y xs</td>
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<pre style="margin: 0;"> <span id="LC441" class="line" lang="haskell"><span class="n" style="color: #333;">delete</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Eq</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC442" class="line" lang="haskell"><span class="n" style="color: #333;">delete</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">deleteBy</span> <span class="p">(</span><span class="o" style="font-weight: 600;">==</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC443" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC445" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. The 'deleteBy' function behaves like 'delete', but takes a</span></span></span>
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<pre style="margin: 0;">-<span id="LC446" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- user-supplied equality predicate.</span></span>
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<pre style="margin: 0;">+<span id="LC444" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). The 'deleteBy' function behaves like 'delete', but</span></span></span>
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<pre style="margin: 0;">+<span id="LC445" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">takes a </span>user-supplied equality predicate.</span></span>
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<pre style="margin: 0;"> <span id="LC446" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC447" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> deleteBy (<=) 4 [1..10]</span></span>
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<pre style="margin: 0;"> <span id="LC448" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- [1,2,3,5,6,7,8,9,10]</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -509,9 +508,9 @@ intersectBy _ [] _ = []</td>
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<pre style="margin: 0;"> <span id="LC508" class="line" lang="haskell"><span class="n" style="color: #333;">intersectBy</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
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<pre style="margin: 0;"> <span id="LC509" class="line" lang="haskell"><span class="n" style="color: #333;">intersectBy</span> <span class="n" style="color: #333;">eq</span> <span class="n" style="color: #333;">xs</span> <span class="n" style="color: #333;">ys</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">[</span><span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">xs</span><span class="p">,</span> <span class="n" style="color: #333;">any</span> <span class="p">(</span><span class="n" style="color: #333;">eq</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="n" style="color: #333;">ys</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC510" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC512" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. The 'intersperse' function takes an element and a list and</span></span></span>
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<pre style="margin: 0;">-<span id="LC513" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">\`intersperses\' that element between the elements of the list.</span></span></span>
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<pre style="margin: 0;">-<span id="LC514" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">For </span>example,</span></span>
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<pre style="margin: 0;">+<span id="LC511" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). The 'intersperse' function takes an element and a list</span></span></span>
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<pre style="margin: 0;">+<span id="LC512" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">and \`intersperses\' that element between the elements of the list. For</span></span></span>
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<pre style="margin: 0;">+<span id="LC513" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- example,</span></span>
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<pre style="margin: 0;"> <span id="LC514" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC515" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> intersperse ',' "abcde"</span></span>
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<pre style="margin: 0;"> <span id="LC516" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- "a,b,c,d,e"</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -618,18 +617,18 @@ mapAccumR f s (x:xs) = (s'', y:ys)</td>
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<pre style="margin: 0;"> <span id="LC617" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span> <span class="p">(</span><span class="n" style="color: #333;">s''</span><span class="p">,</span><span class="n" style="color: #333;">y</span> <span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">s'</span> <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;"> <span id="LC618" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="n" style="color: #333;">ys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mapAccumR</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">s</span> <span class="n" style="color: #333;">xs</span></span>
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<pre style="margin: 0;"> <span id="LC619" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC621" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. The 'insert' function takes an element and a list and inserts the</span></span></span>
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<pre style="margin: 0;">-<span id="LC622" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">element into the list at the first position where it is less than or equal to</span></span></span>
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<pre style="margin: 0;">-<span id="LC623" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">the next element. In particular, if the list is sorted before the call,</span> the</span></span>
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<pre style="margin: 0;">-<span id="LC624" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">result will also be sorted. It is a special case of 'insertBy', which allows</span></span></span>
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<pre style="margin: 0;">-<span id="LC625" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- the programmer to supply their own comparison function.</span></span>
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<pre style="margin: 0;">+<span id="LC620" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). The 'insert' function takes an element and a list and</span></span></span>
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<pre style="margin: 0;">+<span id="LC621" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">inserts the element into the list at the first position where it is less than</span></span></span>
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<pre style="margin: 0;">+<span id="LC622" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">or equal to the next element. In particular, if the list is sorted before</span> the</span></span>
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<pre style="margin: 0;">+<span id="LC623" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">call, the result will also be sorted. It is a special case of 'insertBy',</span></span></span>
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<pre style="margin: 0;">+<span id="LC624" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">which allows </span>the programmer to supply their own comparison function.</span></span>
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<pre style="margin: 0;"> <span id="LC625" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC626" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> insert 4 [1,2,3,5,6,7]</span></span>
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<pre style="margin: 0;"> <span id="LC627" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- [1,2,3,4,5,6,7]</span></span>
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<pre style="margin: 0;"> <span id="LC628" class="line" lang="haskell"><span class="n" style="color: #333;">insert</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ord</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">=></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC629" class="line" lang="haskell"><span class="n" style="color: #333;">insert</span> <span class="n" style="color: #333;">e</span> <span class="n" style="color: #333;">ls</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">insertBy</span> <span class="p">(</span><span class="n" style="color: #333;">compare</span><span class="p">)</span> <span class="n" style="color: #333;">e</span> <span class="n" style="color: #333;">ls</span></span>
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<pre style="margin: 0;"> <span id="LC630" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC632" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/</span>. The non-overloaded version of 'insert'.</span></span>
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<pre style="margin: 0;">+<span id="LC631" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\)</span>. The non-overloaded version of 'insert'.</span></span>
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<pre style="margin: 0;"> <span id="LC632" class="line" lang="haskell"><span class="n" style="color: #333;">insertBy</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Ordering</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC633" class="line" lang="haskell"><span class="n" style="color: #333;">insertBy</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">x</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">[</span><span class="n" style="color: #333;">x</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC634" class="line" lang="haskell"><span class="n" style="color: #333;">insertBy</span> <span class="n" style="color: #333;">cmp</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">ys</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="n" style="color: #333;">y</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ys'</span><span class="p">)</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -669,9 +668,10 @@ minimumBy cmp xs = foldl1 minBy xs</td>
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<pre style="margin: 0;"> <span id="LC668" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">GT</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">y</span></span>
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<pre style="margin: 0;"> <span id="LC669" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;"> <span id="LC670" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC672" class="line" lang="haskell"><span class="cd">-- | /O(n)/. The 'genericLength' function is an overloaded version of 'length'.</span></span>
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<pre style="margin: 0;">-<span id="LC673" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- In particular, instead of returning an 'Int', it returns any type which is an</span></span>
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<pre style="margin: 0;">-<span id="LC674" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- instance of 'Num'. It is, however, less efficient than 'length'.</span></span>
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<pre style="margin: 0;">+<span id="LC671" class="line" lang="haskell"><span class="cd">-- | \(\mathcal{O}(n)\). The 'genericLength' function is an overloaded version</span></span>
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<pre style="margin: 0;">+<span id="LC672" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- of 'length'. In particular, instead of returning an 'Int', it returns any</span></span>
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<pre style="margin: 0;">+<span id="LC673" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- type which is an instance of 'Num'. It is, however, less efficient than</span></span>
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<pre style="margin: 0;">+<span id="LC674" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- 'length'.</span></span>
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<pre style="margin: 0;"> <span id="LC675" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC676" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> genericLength [1, 2, 3] :: Int</span></span>
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<pre style="margin: 0;"> <span id="LC677" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- 3</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1029,8 +1029,8 @@ inits = map toListSB . scanl' snocSB emptySB</td>
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<pre style="margin: 0;"> <span id="LC1029" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- if it fuses with a consumer, and it would generally lead to serious</span></span>
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<pre style="margin: 0;"> <span id="LC1030" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- loss of sharing if allowed to fuse with a producer.</span></span>
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<pre style="margin: 0;"> <span id="LC1031" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1032" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. The 'tails' function returns all final segments of the argument,</span></span></span>
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<pre style="margin: 0;">-<span id="LC1033" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">longest first. </span> For example,</span></span>
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<pre style="margin: 0;">+<span id="LC1032" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). The 'tails' function returns all final segments of the</span></span></span>
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<pre style="margin: 0;">+<span id="LC1033" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">argument, longest first.</span> For example,</span></span>
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<pre style="margin: 0;"> <span id="LC1034" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC1035" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> tails "abc"</span></span>
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<pre style="margin: 0;"> <span id="LC1036" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- ["abc","bc","c",""]</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#b607f20d31bcaad5939eb99b479fabe34bef1b9e"><strong>libraries/base/Data/Semigroup/Internal.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -31,7 +31,7 @@ import GHC.Real</td>
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<pre style="margin: 0;"> <span id="LC31" class="line" lang="haskell"><span class="cd">-- | This is a valid definition of 'stimes' for an idempotent 'Semigroup'.</span></span>
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<pre style="margin: 0;"> <span id="LC32" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC33" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- When @x <> x = x@, this definition should be preferred, because it</span></span>
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<pre style="margin: 0;">-<span id="LC34" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- works in <span class="idiff left right">/O(1)/ rather than /O(log n)/</span>.</span></span>
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<pre style="margin: 0;">+<span id="LC34" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- works in <span class="idiff left right">\(\mathcal{O}(1)\) rather than \(\mathcal{O}(\log n)\)</span>.</span></span>
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<pre style="margin: 0;"> <span id="LC35" class="line" lang="haskell"><span class="n" style="color: #333;">stimesIdempotent</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Integral</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">=></span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;"> <span id="LC36" class="line" lang="haskell"><span class="n" style="color: #333;">stimesIdempotent</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;"> <span id="LC37" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">n</span> <span class="o" style="font-weight: 600;"><=</span> <span class="mi" style="color: #099;">0</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">errorWithoutStackTrace</span> <span class="s" style="color: #d14;">"stimesIdempotent: positive multiplier expected"</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -40,7 +40,7 @@ stimesIdempotent n x</td>
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<pre style="margin: 0;"> <span id="LC40" class="line" lang="haskell"><span class="cd">-- | This is a valid definition of 'stimes' for an idempotent 'Monoid'.</span></span>
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<pre style="margin: 0;"> <span id="LC41" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC42" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- When @mappend x x = x@, this definition should be preferred, because it</span></span>
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<pre style="margin: 0;">-<span id="LC43" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- works in <span class="idiff left right">/O(1)/ rather than /O(log n)/</span></span></span>
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<pre style="margin: 0;">+<span id="LC43" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- works in <span class="idiff left right">\(\mathcal{O}(1)\) rather than \(\mathcal{O}(\log n)\)</span></span></span>
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<pre style="margin: 0;"> <span id="LC44" class="line" lang="haskell"><span class="n" style="color: #333;">stimesIdempotentMonoid</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Integral</span> <span class="n" style="color: #333;">b</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=></span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;"> <span id="LC45" class="line" lang="haskell"><span class="n" style="color: #333;">stimesIdempotentMonoid</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">compare</span> <span class="n" style="color: #333;">n</span> <span class="mi" style="color: #099;">0</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;"> <span id="LC46" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">LT</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">errorWithoutStackTrace</span> <span class="s" style="color: #d14;">"stimesIdempotentMonoid: negative multiplier"</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -239,7 +239,7 @@ class Semigroup a where</td>
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<pre style="margin: 0;"> <span id="LC239" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- will do so.</span></span>
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<pre style="margin: 0;"> <span id="LC240" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC241" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- By making this a member of the class, idempotent semigroups</span></span>
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<pre style="margin: 0;">-<span id="LC242" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- and monoids can upgrade this to execute in <span class="idiff left right">/O(1)/</span> by</span></span>
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<pre style="margin: 0;">+<span id="LC242" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- and monoids can upgrade this to execute in <span class="idiff left right">\(\mathcal{O}(1)\)</span> by</span></span>
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<pre style="margin: 0;"> <span id="LC243" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- picking @stimes = 'Data.Semigroup.stimesIdempotent'@ or @stimes =</span></span>
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<pre style="margin: 0;"> <span id="LC244" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- 'stimesIdempotentMonoid'@ respectively.</span></span>
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<pre style="margin: 0;"> <span id="LC245" class="line" lang="haskell"> <span class="n" style="color: #333;">stimes</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Integral</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">=></span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1083,8 +1083,8 @@ augment g xs = g (:) xs</td>
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<pre style="margin: 0;"> <span id="LC1083" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- map</span></span>
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<pre style="margin: 0;"> <span id="LC1084" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">----------------------------------------------</span></span>
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<pre style="margin: 0;"> <span id="LC1085" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1086" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. 'map' @f xs@ is the list obtained by applying @f@ to each element</span></span></span>
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<pre style="margin: 0;">-<span id="LC1087" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- of @xs@, i.e.,</span></span>
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<pre style="margin: 0;">+<span id="LC1086" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). 'map' @f xs@ is the list obtained by applying @f@ to</span></span></span>
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<pre style="margin: 0;">+<span id="LC1087" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">each element </span>of @xs@, i.e.,</span></span>
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<pre style="margin: 0;"> <span id="LC1088" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC1089" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- > map f [x1, x2, ..., xn] == [f x1, f x2, ..., f xn]</span></span>
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<pre style="margin: 0;"> <span id="LC1090" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- > map f [x1, x2, ...] == [f x1, f x2, ...]</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#acecd3813d90e82d1b376f7d6b9171838680d185"><strong>libraries/base/GHC/List.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -44,7 +44,7 @@ infix 4 `elem`, `notElem`</td>
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<pre style="margin: 0;"> <span id="LC44" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- List-manipulation functions</span></span>
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<pre style="margin: 0;"> <span id="LC45" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--------------------------------------------------------------</span></span>
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<pre style="margin: 0;"> <span id="LC46" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC47" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(1)/</span>. Extract the first element of a list, which must be non-empty.</span></span>
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<pre style="margin: 0;">+<span id="LC47" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(1)\)</span>. Extract the first element of a list, which must be non-empty.</span></span>
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<pre style="margin: 0;"> <span id="LC48" class="line" lang="haskell"><span class="n" style="color: #333;">head</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;"> <span id="LC49" class="line" lang="haskell"><span class="n" style="color: #333;">head</span> <span class="p">(</span><span class="n" style="color: #333;">x</span><span class="o" style="font-weight: 600;">:</span><span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;"> <span id="LC50" class="line" lang="haskell"><span class="n" style="color: #333;">head</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">badHead</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -62,8 +62,8 @@ badHead = errorEmptyList "head"</td>
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<pre style="margin: 0;"> <span id="LC62" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;"> head (augment g xs) = g (\x _ -> x) (head xs)</span></span>
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<pre style="margin: 0;"> <span id="LC63" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;"> #-}</span></span>
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<pre style="margin: 0;"> <span id="LC64" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC65" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(1)/. Decompose a list into its head and tail. If the list is empty,</span></span></span>
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<pre style="margin: 0;">-<span id="LC66" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- returns 'Nothing'. If the list is non-empty, returns @'Just' (x, xs)@,</span></span>
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<pre style="margin: 0;">+<span id="LC65" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(1)\). Decompose a list into its head and tail. If the list is</span></span></span>
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<pre style="margin: 0;">+<span id="LC66" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">empty, </span>returns 'Nothing'. If the list is non-empty, returns @'Just' (x, xs)@,</span></span>
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<pre style="margin: 0;"> <span id="LC67" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- where @x@ is the head of the list and @xs@ its tail.</span></span>
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<pre style="margin: 0;"> <span id="LC68" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC69" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- @since 4.8.0.0</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -71,14 +71,14 @@ uncons :: [a] -> Maybe (a, [a])</td>
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<pre style="margin: 0;"> <span id="LC71" class="line" lang="haskell"><span class="n" style="color: #333;">uncons</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>
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<pre style="margin: 0;"> <span id="LC72" class="line" lang="haskell"><span class="n" style="color: #333;">uncons</span> <span class="p">(</span><span class="n" style="color: #333;">x</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">x</span><span class="p">,</span> <span class="n" style="color: #333;">xs</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC73" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC74" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(1)/. Extract the elements after the head of a list, which must be</span></span></span>
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<pre style="margin: 0;">-<span id="LC75" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- non-empty.</span></span>
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<pre style="margin: 0;">+<span id="LC74" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(1)\). Extract the elements after the head of a list, which</span></span></span>
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<pre style="margin: 0;">+<span id="LC75" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">must be </span>non-empty.</span></span>
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<pre style="margin: 0;"> <span id="LC76" class="line" lang="haskell"><span class="n" style="color: #333;">tail</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC77" class="line" lang="haskell"><span class="n" style="color: #333;">tail</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">xs</span></span>
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<pre style="margin: 0;"> <span id="LC78" class="line" lang="haskell"><span class="n" style="color: #333;">tail</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">errorEmptyList</span> <span class="s" style="color: #d14;">"tail"</span></span>
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<pre style="margin: 0;"> <span id="LC79" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC80" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. Extract the last element of a list, which must be finite and</span></span></span>
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<pre style="margin: 0;">-<span id="LC81" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- non-empty.</span></span>
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<pre style="margin: 0;">+<span id="LC80" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). Extract the last element of a list, which must be</span></span></span>
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<pre style="margin: 0;">+<span id="LC81" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">finite and </span>non-empty.</span></span>
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<pre style="margin: 0;"> <span id="LC82" class="line" lang="haskell"><span class="n" style="color: #333;">last</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;"> <span id="LC83" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">USE_REPORT_PRELUDE</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC84" class="line" lang="haskell"><span class="n" style="color: #333;">last</span> <span class="p">[</span><span class="n" style="color: #333;">x</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">x</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -96,7 +96,7 @@ lastError :: a</td>
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<pre style="margin: 0;"> <span id="LC96" class="line" lang="haskell"><span class="n" style="color: #333;">lastError</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">errorEmptyList</span> <span class="s" style="color: #d14;">"last"</span></span>
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<pre style="margin: 0;"> <span id="LC97" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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<pre style="margin: 0;"> <span id="LC98" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC99" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/</span>. Return all the elements of a list except the last one.</span></span>
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<pre style="margin: 0;">+<span id="LC99" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\)</span>. Return all the elements of a list except the last one.</span></span>
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<pre style="margin: 0;"> <span id="LC100" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The list must be non-empty.</span></span>
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<pre style="margin: 0;"> <span id="LC101" class="line" lang="haskell"><span class="n" style="color: #333;">init</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC102" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">defined</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">USE_REPORT_PRELUDE</span><span class="p">)</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -111,14 +111,14 @@ init (x:xs) = init' x xs</td>
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<pre style="margin: 0;"> <span id="LC111" class="line" lang="haskell"> <span class="n" style="color: #333;">init'</span> <span class="n" style="color: #333;">y</span> <span class="p">(</span><span class="n" style="color: #333;">z</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">zs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">y</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">init'</span> <span class="n" style="color: #333;">z</span> <span class="n" style="color: #333;">zs</span></span>
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<pre style="margin: 0;"> <span id="LC112" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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<pre style="margin: 0;"> <span id="LC113" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC114" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(1)/</span>. Test whether a list is empty.</span></span>
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<pre style="margin: 0;">+<span id="LC114" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(1)\)</span>. Test whether a list is empty.</span></span>
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<pre style="margin: 0;"> <span id="LC115" class="line" lang="haskell"><span class="n" style="color: #333;">null</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
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<pre style="margin: 0;"> <span id="LC116" class="line" lang="haskell"><span class="n" style="color: #333;">null</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>
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<pre style="margin: 0;"> <span id="LC117" class="line" lang="haskell"><span class="n" style="color: #333;">null</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="o" style="font-weight: 600;">:</span><span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
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<pre style="margin: 0;"> <span id="LC118" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC119" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. 'length' returns the length of a finite list as an 'Int'.</span></span></span>
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<pre style="margin: 0;">-<span id="LC120" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">It is an instance of the more general 'Data.List.genericLength',</span></span></span>
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<pre style="margin: 0;">-<span id="LC121" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">the </span>result type of which may be any kind of number.</span></span>
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<pre style="margin: 0;">+<span id="LC119" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). 'length' returns the length of a finite list as an</span></span></span>
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<pre style="margin: 0;">+<span id="LC120" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">'Int'. It is an instance of the more general 'Data.List.genericLength', the</span></span></span>
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<pre style="margin: 0;">+<span id="LC121" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- result type of which may be any kind of number.</span></span>
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<pre style="margin: 0;"> <span id="LC122" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# NOINLINE [1] length #-}</span></span>
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<pre style="margin: 0;"> <span id="LC123" class="line" lang="haskell"><span class="n" style="color: #333;">length</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Int</span></span>
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<pre style="margin: 0;"> <span id="LC124" class="line" lang="haskell"><span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">xs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lenAcc</span> <span class="n" style="color: #333;">xs</span> <span class="mi" style="color: #099;">0</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -142,8 +142,8 @@ lengthFB _ r = \ !a -> r (a + 1)</td>
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<pre style="margin: 0;"> <span id="LC142" class="line" lang="haskell"><span class="n" style="color: #333;">idLength</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Int</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Int</span></span>
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<pre style="margin: 0;"> <span id="LC143" class="line" lang="haskell"><span class="n" style="color: #333;">idLength</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">id</span></span>
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<pre style="margin: 0;"> <span id="LC144" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC145" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. 'filter', applied to a predicate and a list, returns the list of</span></span></span>
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<pre style="margin: 0;">-<span id="LC146" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- those elements that satisfy the predicate; i.e.,</span></span>
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<pre style="margin: 0;">+<span id="LC145" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). 'filter', applied to a predicate and a list, returns</span></span></span>
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<pre style="margin: 0;">+<span id="LC146" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- th<span class="idiff left right">e list of th</span>ose elements that satisfy the predicate; i.e.,</span></span>
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<pre style="margin: 0;"> <span id="LC147" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC148" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- > filter p xs = [ x | x <- xs, p x]</span></span>
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<pre style="margin: 0;"> <span id="LC149" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -262,8 +262,8 @@ product :: (Num a) => [a] -> a</td>
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<pre style="margin: 0;"> <span id="LC262" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE product #-}</span></span>
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<pre style="margin: 0;"> <span id="LC263" class="line" lang="haskell"><span class="n" style="color: #333;">product</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldl</span> <span class="p">(</span><span class="o" style="font-weight: 600;">*</span><span class="p">)</span> <span class="mi" style="color: #099;">1</span></span>
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<pre style="margin: 0;"> <span id="LC264" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC265" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. 'scanl' is similar to 'foldl', but returns a list of successive</span></span></span>
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<pre style="margin: 0;">-<span id="LC266" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- reduced values from the left:</span></span>
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<pre style="margin: 0;">+<span id="LC265" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). 'scanl' is similar to 'foldl', but returns a list of</span></span></span>
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<pre style="margin: 0;">+<span id="LC266" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">successive </span>reduced values from the left:</span></span>
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267
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<pre style="margin: 0;"> <span id="LC267" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC268" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- > scanl f z [x1, x2, ...] == [z, z `f` x1, (z `f` x1) `f` x2, ...]</span></span>
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<pre style="margin: 0;"> <span id="LC269" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -300,8 +300,8 @@ constScanl :: a -> b -> a</td>
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<pre style="margin: 0;"> <span id="LC300" class="line" lang="haskell"><span class="n" style="color: #333;">constScanl</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">const</span></span>
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<pre style="margin: 0;"> <span id="LC301" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC302" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC303" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. 'scanl1' is a variant of 'scanl' that has no starting value</span></span></span>
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<pre style="margin: 0;">-<span id="LC304" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- argument:</span></span>
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<pre style="margin: 0;">+<span id="LC303" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). 'scanl1' is a variant of 'scanl' that has no starting</span></span></span>
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<pre style="margin: 0;">+<span id="LC304" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">value </span>argument:</span></span>
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<pre style="margin: 0;"> <span id="LC305" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC306" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- > scanl1 f [x1, x2, ...] == [x1, x1 `f` x2, ...]</span></span>
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<pre style="margin: 0;"> <span id="LC307" class="line" lang="haskell"></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="309" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="309" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -309,7 +309,7 @@ scanl1 :: (a -> a -> a) -> [a] -> [a]</td>
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<pre style="margin: 0;"> <span id="LC309" class="line" lang="haskell"><span class="n" style="color: #333;">scanl1</span> <span class="n" style="color: #333;">f</span> <span class="p">(</span><span class="n" style="color: #333;">x</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">scanl</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">xs</span></span>
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<pre style="margin: 0;"> <span id="LC310" class="line" lang="haskell"><span class="n" style="color: #333;">scanl1</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
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<pre style="margin: 0;"> <span id="LC311" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC312" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/</span>. A strictly accumulating version of 'scanl'</span></span>
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<pre style="margin: 0;">+<span id="LC312" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\)</span>. A strictly accumulating version of 'scanl'</span></span>
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<pre style="margin: 0;"> <span id="LC313" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# NOINLINE [1] scanl' #-}</span></span>
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<pre style="margin: 0;"> <span id="LC314" class="line" lang="haskell"><span class="n" style="color: #333;">scanl'</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">b</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">b</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC315" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- This peculiar form is needed to prevent scanl' from being rewritten</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -381,7 +381,7 @@ foldr1 f = go</td>
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<pre style="margin: 0;"> <span id="LC381" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">errorEmptyList</span> <span class="s" style="color: #d14;">"foldr1"</span></span>
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<pre style="margin: 0;"> <span id="LC382" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE [0] foldr1 #-}</span></span>
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<pre style="margin: 0;"> <span id="LC383" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC384" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/</span>. 'scanr' is the right-to-left dual of 'scanl'.</span></span>
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<pre style="margin: 0;">+<span id="LC384" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\)</span>. 'scanr' is the right-to-left dual of 'scanl'.</span></span>
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<pre style="margin: 0;"> <span id="LC385" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Note that</span></span>
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<pre style="margin: 0;"> <span id="LC386" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC387" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- > head (scanr f z xs) == foldr f z xs.</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -408,8 +408,8 @@ scanrFB f c = \x (r, est) -> (f x r, r `c` est)</td>
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<pre style="margin: 0;"> <span id="LC408" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;"> scanr f q0 ls</span></span>
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<pre style="margin: 0;"> <span id="LC409" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;"> #-}</span></span>
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<pre style="margin: 0;"> <span id="LC410" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC411" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(n)/. 'scanr1' is a variant of 'scanr' that has no starting value</span></span></span>
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<pre style="margin: 0;">-<span id="LC412" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- argument.</span></span>
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<pre style="margin: 0;">+<span id="LC411" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(n)\). 'scanr1' is a variant of 'scanr' that has no starting</span></span></span>
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<pre style="margin: 0;">+<span id="LC412" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">value </span>argument.</span></span>
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<pre style="margin: 0;"> <span id="LC413" class="line" lang="haskell"><span class="n" style="color: #333;">scanr1</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC414" class="line" lang="haskell"><span class="n" style="color: #333;">scanr1</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
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<pre style="margin: 0;"> <span id="LC415" class="line" lang="haskell"><span class="n" style="color: #333;">scanr1</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">[</span><span class="n" style="color: #333;">x</span><span class="p">]</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">[</span><span class="n" style="color: #333;">x</span><span class="p">]</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -852,7 +852,8 @@ notElem x (y:ys)= x /= y && notElem x ys</td>
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<pre style="margin: 0;"> <span id="LC852" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;"> #-}</span></span>
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<pre style="margin: 0;"> <span id="LC853" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">endif</span></span>
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<pre style="margin: 0;"> <span id="LC854" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC855" class="line" lang="haskell"><span class="cd">-- | /O(n)/. 'lookup' @key assocs@ looks up a key in an association list.</span></span>
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<pre style="margin: 0;">+<span id="LC855" class="line" lang="haskell"><span class="cd">-- | \(\mathcal{O}(n)\). 'lookup' @key assocs@ looks up a key in an association</span></span>
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<pre style="margin: 0;">+<span id="LC856" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- list.</span></span>
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<pre style="margin: 0;"> <span id="LC857" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC858" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> lookup 2 [(1, "first"), (2, "second"), (3, "third")]</span></span>
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<pre style="margin: 0;"> <span id="LC859" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Just "second"</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1012,8 +1013,8 @@ NB: Zips for larger tuples are in the List module.</td>
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<pre style="margin: 0;"> <span id="LC1013" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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<pre style="margin: 0;"> <span id="LC1014" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1015" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">----------------------------------------------</span></span>
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<pre style="margin: 0;">-<span id="LC1015" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(min(m,n))/. 'zip' takes two lists and returns a list of corresponding</span></span></span>
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<pre style="margin: 0;">-<span id="LC1016" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- pairs.</span></span>
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<pre style="margin: 0;">+<span id="LC1016" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(min(m,n))\). 'zip' takes two lists and returns a list of</span></span></span>
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<pre style="margin: 0;">+<span id="LC1017" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">corresponding </span>pairs.</span></span>
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<pre style="margin: 0;"> <span id="LC1018" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC1019" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- > zip [1, 2] ['a', 'b'] = [(1, 'a'), (2, 'b')]</span></span>
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1019
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1020
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<pre style="margin: 0;"> <span id="LC1020" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1070,10 +1071,10 @@ zip3FB cons = \a b c r -> (a,b,c) `cons` r</td>
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<pre style="margin: 0;"> <span id="LC1071" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- function given as the first argument, instead of a tupling function.</span></span>
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<pre style="margin: 0;"> <span id="LC1072" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1073" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">----------------------------------------------</span></span>
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<pre style="margin: 0;">-<span id="LC1073" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">/O(min(m,n))/. 'zipWith' generalises 'zip' by zipping with the function</span></span></span>
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<pre style="margin: 0;">-<span id="LC1074" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">given as the first argument, instead of a tupling function. For example,</span></span></span>
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<pre style="margin: 0;">-<span id="LC1075" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">@'zipWith' (+)@ is applied to two lists to produce the list of corresponding</span></span></span>
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<pre style="margin: 0;">-<span id="LC1076" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- sums:</span></span>
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<pre style="margin: 0;">+<span id="LC1074" class="line" lang="haskell"><span class="cd">-- | <span class="idiff left right">\(\mathcal{O}(min(m,n))\). 'zipWith' generalises 'zip' by zipping with the</span></span></span>
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<pre style="margin: 0;">+<span id="LC1075" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">function given as the first argument, instead of a tupling function. For</span></span></span>
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<pre style="margin: 0;">+<span id="LC1076" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">example, @'zipWith' (+)@ is applied to two lists to produce the list of</span></span></span>
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<pre style="margin: 0;">+<span id="LC1077" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">corresponding </span>sums:</span></span>
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<pre style="margin: 0;"> <span id="LC1078" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC1079" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- >>> zipWith (+) [1, 2, 3] [4, 5, 6]</span></span>
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<pre style="margin: 0;"> <span id="LC1080" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- [5,7,9]</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#74e17c0bf97a400b0c087d6e9bfce1a721818e5b"><strong>libraries/base/GHC/StableName.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -13,8 +13,8 @@</td>
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<pre style="margin: 0;"> <span id="LC13" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Stability : experimental</span></span>
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<pre style="margin: 0;"> <span id="LC14" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Portability : non-portable</span></span>
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<pre style="margin: 0;"> <span id="LC15" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">-<span id="LC16" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Stable names are a way of performing fast (<span class="idiff left right">O(1)), not-quite-exact</span></span></span>
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<pre style="margin: 0;">-<span id="LC17" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- comparison between objects.</span></span>
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<pre style="margin: 0;">+<span id="LC16" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Stable names are a way of performing fast (<span class="idiff left right"> \(\mathcal{O}(1)\) ),</span></span></span>
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<pre style="margin: 0;">+<span id="LC17" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">not-quite-exact </span>comparison between objects.</span></span>
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<pre style="margin: 0;"> <span id="LC18" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC19" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Stable names solve the following problem: suppose you want to build</span></span>
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<pre style="margin: 0;"> <span id="LC20" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- a hash table with Haskell objects as keys, but you want to use</span></span>
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<li id="4a3f7a7dc8423069dcc4f9133642af862b74af50">
<a href="https://gitlab.haskell.org/ghc/ghc/compare/97a41cd9813dc98efb44d27684a6d98cf5f5168f...3d367bfa98b0ddf9e4a9fcab86def168f73ca503#4a3f7a7dc8423069dcc4f9133642af862b74af50"><strong>libraries/base/System/Mem/StableName.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -10,8 +10,8 @@</td>
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<pre style="margin: 0;"> <span id="LC10" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Stability : experimental</span></span>
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<pre style="margin: 0;"> <span id="LC11" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Portability : non-portable</span></span>
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<pre style="margin: 0;"> <span id="LC12" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;">-<span id="LC13" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Stable names are a way of performing fast (<span class="idiff left right">O(1)), not-quite-exact</span></span></span>
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<pre style="margin: 0;">-<span id="LC14" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- comparison between objects.</span></span>
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<pre style="margin: 0;">+<span id="LC13" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Stable names are a way of performing fast (<span class="idiff left right"> \(\mathcal{O}(1)\) ),</span></span></span>
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<pre style="margin: 0;">+<span id="LC14" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">not-quite-exact </span>comparison between objects.</span></span>
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<pre style="margin: 0;"> <span id="LC15" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC16" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Stable names solve the following problem: suppose you want to build</span></span>
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<pre style="margin: 0;"> <span id="LC17" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- a hash table with Haskell objects as keys, but you want to use</span></span>
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