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</script></head><body><div id="package-header"><ul class="links" id="page-menu"><li><a href="src/Data-Semigroup-Generic.html">Source</a></li><li><a href="index.html">Contents</a></li><li><a href="doc-index.html">Index</a></li></ul><p class="caption">semigroups-0.18.0.1: Anything that associates</p></div><div id="content"><div id="module-header"><table class="info"><tr><th>Copyright</th><td>(C) 2014-2015 Edward Kmett, Eric Mertens</td></tr><tr><th>License</th><td>BSD-style (see the file LICENSE)</td></tr><tr><th>Maintainer</th><td>Edward Kmett <ekmett@gmail.com></td></tr><tr><th>Stability</th><td>provisional</td></tr><tr><th>Portability</th><td>portable</td></tr><tr><th>Safe Haskell</th><td>Safe</td></tr><tr><th>Language</th><td>Haskell98</td></tr></table><p class="caption">Data.Semigroup.Generic</p></div><div id="description"><p class="caption">Description</p><div class="doc"><p>This module provides generic deriving tools for monoids and semigroups for
product-like structures.</p></div></div><div id="synopsis"><p id="control.syn" class="caption expander" onclick="toggleSection('syn')">Synopsis</p><ul id="section.syn" class="hide" onclick="toggleSection('syn')"><li class="src short"><span class="keyword">class</span> <a href="#t:GSemigroup">GSemigroup</a> f</li><li class="src short"><a href="#v:gmappend">gmappend</a> :: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Generic">Generic</a> a, <a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rep">Rep</a> a)) => a -> a -> a</li><li class="src short"><span class="keyword">class</span> <a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> f => <a href="#t:GMonoid">GMonoid</a> f</li><li class="src short"><a href="#v:gmempty">gmempty</a> :: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Generic">Generic</a> a, <a href="Data-Semigroup-Generic.html#t:GMonoid">GMonoid</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rep">Rep</a> a)) => a</li></ul></div><div id="interface"><h1>Documentation</h1><div class="top"><p class="src"><span class="keyword">class</span> <a name="t:GSemigroup" class="def">GSemigroup</a> f <a href="src/Data-Semigroup-Generic.html#GSemigroup" class="link">Source</a></p><div class="subs minimal"><p class="caption">Minimal complete definition</p><p class="src">gmappend'</p></div><div class="subs instances"><p id="control.i:GSemigroup" class="caption collapser" onclick="toggleSection('i:GSemigroup')">Instances</p><div id="section.i:GSemigroup" class="show"><table><tr><td class="src clearfix"><span class="inst-left"><a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:V1">V1</a></span> <a href="src/Data-Semigroup-Generic.html#line-45" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:U1">U1</a></span> <a href="src/Data-Semigroup-Generic.html#line-42" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Data-Semigroup.html#t:Semigroup">Semigroup</a> a => <a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:K1">K1</a> i a)</span> <a href="src/Data-Semigroup-Generic.html#line-48" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left">(<a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> f, <a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> g) => <a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t::-42-:">(:*:)</a> f g)</span> <a href="src/Data-Semigroup-Generic.html#line-54" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> f => <a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:M1">M1</a> i c f)</span> <a href="src/Data-Semigroup-Generic.html#line-51" class="link">Source</a></td><td class="doc empty"> </td></tr></table></div></div></div><div class="top"><p class="src"><a name="v:gmappend" class="def">gmappend</a> :: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Generic">Generic</a> a, <a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rep">Rep</a> a)) => a -> a -> a <a href="src/Data-Semigroup-Generic.html#gmappend" class="link">Source</a></p><div class="doc"><p>Generically generate a <code><a href="Data-Semigroup.html#t:Semigroup">Semigroup</a></code> (<code><a href="Data-Semigroup.html#v:-60--62-"><></a></code>) operation for any type
implementing <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Generic">Generic</a></code>. This operation will append two values
by point-wise appending their component fields. It is only defined
for product types.</p><pre><code><a href="Data-Semigroup-Generic.html#v:gmappend">gmappend</a></code> a (<code><a href="Data-Semigroup-Generic.html#v:gmappend">gmappend</a></code> b c) = <code><a href="Data-Semigroup-Generic.html#v:gmappend">gmappend</a></code> (<code><a href="Data-Semigroup-Generic.html#v:gmappend">gmappend</a></code> a b) c
</pre></div></div><div class="top"><p class="src"><span class="keyword">class</span> <a href="Data-Semigroup-Generic.html#t:GSemigroup">GSemigroup</a> f => <a name="t:GMonoid" class="def">GMonoid</a> f <a href="src/Data-Semigroup-Generic.html#GMonoid" class="link">Source</a></p><div class="subs minimal"><p class="caption">Minimal complete definition</p><p class="src">gmempty'</p></div><div class="subs instances"><p id="control.i:GMonoid" class="caption collapser" onclick="toggleSection('i:GMonoid')">Instances</p><div id="section.i:GMonoid" class="show"><table><tr><td class="src clearfix"><span class="inst-left"><a href="Data-Semigroup-Generic.html#t:GMonoid">GMonoid</a> <a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:U1">U1</a></span> <a href="src/Data-Semigroup-Generic.html#line-72" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left">(<a href="Data-Semigroup.html#t:Semigroup">Semigroup</a> a, <a href="Data-Semigroup.html#t:Monoid">Monoid</a> a) => <a href="Data-Semigroup-Generic.html#t:GMonoid">GMonoid</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:K1">K1</a> i a)</span> <a href="src/Data-Semigroup-Generic.html#line-75" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left">(<a href="Data-Semigroup-Generic.html#t:GMonoid">GMonoid</a> f, <a href="Data-Semigroup-Generic.html#t:GMonoid">GMonoid</a> g) => <a href="Data-Semigroup-Generic.html#t:GMonoid">GMonoid</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t::-42-:">(:*:)</a> f g)</span> <a href="src/Data-Semigroup-Generic.html#line-81" class="link">Source</a></td><td class="doc empty"> </td></tr><tr><td class="src clearfix"><span class="inst-left"><a href="Data-Semigroup-Generic.html#t:GMonoid">GMonoid</a> f => <a href="Data-Semigroup-Generic.html#t:GMonoid">GMonoid</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:M1">M1</a> i c f)</span> <a href="src/Data-Semigroup-Generic.html#line-78" class="link">Source</a></td><td class="doc empty"> </td></tr></table></div></div></div><div class="top"><p class="src"><a name="v:gmempty" class="def">gmempty</a> :: (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Generic">Generic</a> a, <a href="Data-Semigroup-Generic.html#t:GMonoid">GMonoid</a> (<a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Rep">Rep</a> a)) => a <a href="src/Data-Semigroup-Generic.html#gmempty" class="link">Source</a></p><div class="doc"><p>Generically generate a <code><a href="Data-Semigroup.html#t:Monoid">Monoid</a></code> <code><a href="Data-Semigroup.html#v:mempty">mempty</a></code> for any product-like type
implementing <code><a href="file:///usr/share/doc/ghc-doc/html/libraries/base-4.8.2.0/GHC-Generics.html#t:Generic">Generic</a></code>.</p><p>It is only defined for product types.</p><pre><code><a href="Data-Semigroup-Generic.html#v:gmappend">gmappend</a></code> <code><a href="Data-Semigroup-Generic.html#v:gmempty">gmempty</a></code> a = a = <code><a href="Data-Semigroup-Generic.html#v:gmappend">gmappend</a></code> a <code><a href="Data-Semigroup-Generic.html#v:gmempty">gmempty</a></code>
</pre></div></div></div></div><div id="footer"><p>Produced by <a href="http://www.haskell.org/haddock/">Haddock</a> version 2.16.1</p></div></body></html>
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