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<h3>
Ben Gamari pushed to branch wip/chunked-unpackCString
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/e775ea238332e5a7a0f85b5f346dd7d022430113">e775ea23</a></strong>
<div>
<span>by Ben Gamari</span>
<i>at 2020-04-09T22:01:36+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">ghc-prim: Strictly in chunks of 32 characters
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<h4>1 changed file:</h4>
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<li class="file-stats">
<a href="#5550456b4c18a3437d117712bc1421c71cca5d98">
libraries/ghc-prim/GHC/CString.hs
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<h4>Changes:</h4>
<li id="5550456b4c18a3437d117712bc1421c71cca5d98">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/e775ea238332e5a7a0f85b5f346dd7d022430113#5550456b4c18a3437d117712bc1421c71cca5d98"><strong>libraries/ghc-prim/GHC/CString.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="93" 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">@@ -93,23 +93,45 @@ the string and the current offset, saving a word for each character unpacked.</td>
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<pre style="margin: 0;"> <span id="LC93" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC94" class="line" lang="haskell"><span class="n" style="color: #333;">unpackCString</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Addr</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Char</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC95" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# NOINLINE CONLIKE unpackCString# #-}</span></span>
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<pre style="margin: 0;">-<span id="LC96" class="line" lang="haskell"><span class="n" style="color: #333;">unpackCString</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">addr</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;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">ch</span> <span class="p">`</span><span class="n" style="color: #333;">eqChar</span><span class="o" style="font-weight: 600;">#</span><span class="p">`</span> <span class="sc" style="color: #d14;">'</span><span class="se" style="color: #d14;">\0</span><span class="sc" style="color: #d14;">'</span><span class="o" 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;">[]</span></span>
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<pre style="margin: 0;">-<span id="LC98" class="line" lang="haskell">    <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">True</span>                         <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">C</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">ch</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">unpackCString</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">addr</span> <span class="p">`</span><span class="n" style="color: #333;">plusAddr</span><span class="o" style="font-weight: 600;">#</span><span class="p">`</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
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<td class="diff-line-num new_line old" data-linenumber="96" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC99" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">where</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;">-- See Note [unpackCString# iterating over addr]</span></span>
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<pre style="margin: 0;">-<span id="LC101" class="line" lang="haskell">        <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">ch</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">indexCharOffAddr</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">addr</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="LC102" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC96" class="line" lang="haskell">     <span class="c1" style="color: #998; font-style: italic;">-- See the NOINLINE note on unpackCString#</span></span>
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<pre style="margin: 0;">+<span id="LC97" class="line" lang="haskell"><span class="n" style="color: #333;">unpackCString</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">addr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unpackAppendCString'</span><span class="o" style="font-weight: 600;">#</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="n" style="color: #333;">addr</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="n" style="color: #333;">unpackAppendCString</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Addr</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Char</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Char</span><span class="p">]</span></span>
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<pre style="margin: 0;"> <span id="LC100" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# NOINLINE unpackAppendCString# #-}</span></span>
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106
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101
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<pre style="margin: 0;"> <span id="LC101" class="line" lang="haskell">     <span class="c1" style="color: #998; font-style: italic;">-- See the NOINLINE note on unpackCString#</span></span>
</pre>
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107
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<td class="diff-line-num new_line old" data-linenumber="102" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC107" class="line" lang="haskell"><span class="n" style="color: #333;">unpackAppendCString</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">addr</span> <span class="n" style="color: #333;">rest</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="108" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
108
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<pre style="margin: 0;">-<span id="LC108" class="line" lang="haskell">    <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">ch</span> <span class="p">`</span><span class="n" style="color: #333;">eqChar</span><span class="o" style="font-weight: 600;">#</span><span class="p">`</span> <span class="sc" style="color: #d14;">'</span><span class="se" style="color: #d14;">\0</span><span class="sc" style="color: #d14;">'</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;">rest</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="109" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
109
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<td class="diff-line-num new_line old" data-linenumber="102" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC109" class="line" lang="haskell">    <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">True</span>                         <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">C</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">ch</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">unpackAppendCString</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">addr</span> <span class="p">`</span><span class="n" style="color: #333;">plusAddr</span><span class="o" style="font-weight: 600;">#</span><span class="p">`</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="n" style="color: #333;">rest</span></span>
</pre>
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110
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<td class="diff-line-num new_line old" data-linenumber="102" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC110" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="111" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
111
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<td class="diff-line-num new_line old" data-linenumber="102" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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<pre style="margin: 0;">-<span id="LC111" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- See Note [unpackCString# iterating over addr]</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="112" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
112
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<td class="diff-line-num new_line old" data-linenumber="102" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
 
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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;">ch</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">indexCharOffAddr</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">addr</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="102" 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="LC102" class="line" lang="haskell"><span class="n" style="color: #333;">unpackAppendCString</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">addr</span> <span class="n" style="color: #333;">rest</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unpackAppendCString'</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">rest</span> <span class="n" style="color: #333;">addr</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="103" 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">
103
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<pre style="margin: 0;">+<span id="LC103" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="104" 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="LC104" class="line" lang="haskell"><span class="cd">-- | This is an local helper to reduce duplication between</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="105" 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">
105
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<pre style="margin: 0;">+<span id="LC105" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- 'unpackCString#' and 'unpackAppendCString#'. Because it is inlined the</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="106" 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="LC106" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- this gets specialised to @rest = []@ in the former case.</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="107" 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="LC107" class="line" lang="haskell"><span class="n" style="color: #333;">unpackAppendCString'</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Char</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Addr</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Char</span><span class="p">]</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="108" 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">
108
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<pre style="margin: 0;">+<span id="LC108" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE unpackAppendCString'# #-}</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="109" 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="LC109" class="line" lang="haskell"><span class="n" style="color: #333;">unpackAppendCString'</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">rest</span> <span class="n" style="color: #333;">addr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unpackChunk</span> <span class="n" style="color: #333;">addr</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="110" 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">
110
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<pre style="margin: 0;">+<span id="LC110" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="111" 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="LC111" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- Laziness is expensive: it involves allocating a thunk, then an indirect</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="112" 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">
112
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<pre style="margin: 0;">+<span id="LC112" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- jump, perhaps some cache misses, etc. However, in practice we find that</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="113" 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">
113
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<pre style="margin: 0;">+<span id="LC113" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- most applications tend to use at least *some* of their unpacked string.</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="114" 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">
114
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<pre style="margin: 0;">+<span id="LC114" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- Consequently we unpack eagerly in chunks of this many characters.</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="115" 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">
115
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<pre style="margin: 0;">+<span id="LC115" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- Compared to fully-lazy unpacking this improves runtime of GHC by about</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="116" 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">
116
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<pre style="margin: 0;">+<span id="LC116" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- 0.5%.</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="117" 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="LC117" class="line" lang="haskell">    <span class="n" style="color: #333;">unpackChunkLen</span> <span class="o" style="font-weight: 600;">=</span> <span class="mi" style="color: #099;">32</span><span class="o" style="font-weight: 600;">#</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="118" 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">
118
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<pre style="margin: 0;">+<span id="LC118" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="119" 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">
119
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<pre style="margin: 0;">+<span id="LC119" class="line" lang="haskell">    <span class="n" style="color: #333;">unpackChunk</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Addr</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Char</span><span class="p">]</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="120" 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="LC120" class="line" lang="haskell">    <span class="n" style="color: #333;">unpackChunk</span> <span class="n" style="color: #333;">addr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">goStrict</span> <span class="n" style="color: #333;">addr</span> <span class="n" style="color: #333;">unpackChunkLen</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="121" 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="LC121" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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="LC122" class="line" lang="haskell">    <span class="n" style="color: #333;">goStrict</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Addr</span><span class="o" style="font-weight: 600;">#</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="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Char</span><span class="p">]</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="123" 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="LC123" class="line" lang="haskell">    <span class="n" style="color: #333;">goStrict</span> <span class="n" style="color: #333;">addr</span> <span class="n" style="color: #333;">n</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="124" 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="LC124" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</span><span class="n" style="color: #333;">ch</span> <span class="p">`</span><span class="n" style="color: #333;">eqChar</span><span class="o" style="font-weight: 600;">#</span><span class="p">`</span> <span class="sc" style="color: #d14;">'</span><span class="se" style="color: #d14;">\0</span><span class="sc" style="color: #d14;">'</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;">rest</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="125" 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="LC125" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTrue</span><span class="o" style="font-weight: 600;">#</span> <span class="p">(</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="p">)</span> <span class="o" style="font-weight: 600;">=</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="126" 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="LC126" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- We've reached the end of our chunk, lazily unpack the next chunk</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="127" 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="LC127" class="line" lang="haskell">          <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">rest</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unpackChunk</span> <span class="p">(</span><span class="n" style="color: #333;">addr</span> <span class="p">`</span><span class="n" style="color: #333;">plusAddr</span><span class="o" style="font-weight: 600;">#</span><span class="p">`</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="128" 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="LC128" class="line" lang="haskell">          <span class="kr" style="font-weight: 600;">in</span> <span class="kt" style="color: #458; font-weight: 600;">C</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">ch</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">rest</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="129" 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">
129
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<pre style="margin: 0;">+<span id="LC129" class="line" lang="haskell">      <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">True</span> <span class="o" style="font-weight: 600;">=</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="130" 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">
130
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<pre style="margin: 0;">+<span id="LC130" class="line" lang="haskell">          <span class="kr" style="font-weight: 600;">let</span> <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">rest</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">goStrict</span> <span class="p">(</span><span class="n" style="color: #333;">addr</span> <span class="p">`</span><span class="n" style="color: #333;">plusAddr</span><span class="o" style="font-weight: 600;">#</span><span class="p">`</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">n</span> <span class="o" style="font-weight: 600;">-#</span> <span class="mi" style="color: #099;">1</span><span class="o" style="font-weight: 600;">#</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="131" 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">
131
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<pre style="margin: 0;">+<span id="LC131" class="line" lang="haskell">          <span class="kr" style="font-weight: 600;">in</span> <span class="kt" style="color: #458; font-weight: 600;">C</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">ch</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">rest</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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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<td class="diff-line-num new new_line" data-linenumber="132" 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">
132
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<pre style="margin: 0;">+<span id="LC132" class="line" lang="haskell">        <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="133" 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">
133
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<pre style="margin: 0;">+<span id="LC133" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- See Note [unpackCString# iterating over addr]</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="113" 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">
 
</td>
<td class="diff-line-num new new_line" data-linenumber="134" 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">
134
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<pre style="margin: 0;">+<span id="LC134" class="line" lang="haskell">          <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">ch</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">indexCharOffAddr</span><span class="o" style="font-weight: 600;">#</span> <span class="n" style="color: #333;">addr</span> <span class="mi" style="color: #099;">0</span><span class="o" style="font-weight: 600;">#</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="113" 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">
113
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<td class="diff-line-num new_line" data-linenumber="135" 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">
135
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<pre style="margin: 0;"> <span id="LC135" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="114" 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">
114
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<td class="diff-line-num new_line" data-linenumber="136" 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">
136
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<pre style="margin: 0;"> <span id="LC136" class="line" lang="haskell"><span class="n" style="color: #333;">unpackFoldrCString</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Addr</span><span class="o" style="font-weight: 600;">#</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Char</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="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="115" 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">
115
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<td class="diff-line-num new_line" data-linenumber="137" 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">
137
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<pre style="margin: 0;"> <span id="LC137" class="line" lang="haskell"></span>
</pre>
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