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Marge Bot pushed to branch master
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/commit/d0142f21692c4b4514ea68e489c943ac26037d8f">d0142f21</a></strong>
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<span>by Javran Cheng</span>
<i>at 2019-05-21T21:08:29Z</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix doc for Data.Function.fix.
Doc-only change.
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<h4>1 changed file:</h4>
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libraries/base/Data/Function.hs
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<h4>Changes:</h4>
<li id="5c76c85088f64e653246775df134759d55305d22">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/d0142f21692c4b4514ea68e489c943ac26037d8f#5c76c85088f64e653246775df134759d55305d22"><strong>libraries/base/Data/Function.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">@@ -45,7 +45,7 @@ infixl 1 &</td>
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<pre style="margin: 0;"> <span id="LC45" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- 120</span></span>
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<pre style="margin: 0;"> <span id="LC46" 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="LC47" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Instead of making a recursive call, we introduce a dummy parameter @rec@;</span></span>
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<pre style="margin: 0;">-<span id="LC48" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- when used within 'fix', this parameter then refers to 'fix' argument, hence</span></span>
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<pre style="margin: 0;">+<span id="LC48" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- when used within 'fix', this parameter then refers to 'fix'<span class="idiff left right">’s</span> argument, hence</span></span>
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<pre style="margin: 0;"> <span id="LC49" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- the recursion is reintroduced.</span></span>
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<pre style="margin: 0;"> <span id="LC50" class="line" lang="haskell"><span class="n" style="color: #333;">fix</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="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="LC51" class="line" lang="haskell"><span class="n" style="color: #333;">fix</span> <span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">x</span> <span class="kr" style="font-weight: 600;">in</span> <span class="n" style="color: #333;">x</span></span>
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