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| <div class="section" id="lambda-expression"> |
| <h1><a class="toc-backref" href="./metafunctions-concepts.html#id1514">Lambda Expression</a></h1> |
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| <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> |
| <p>A <a class="reference internal" href="./lambda-expression.html">Lambda Expression</a> is a compile-time invocable entity in either of the following two |
| forms:</p> |
| <ul class="simple"> |
| <li><a class="reference internal" href="./metafunction-class.html">Metafunction Class</a></li> |
| <li><a class="reference internal" href="./placeholder-expression.html">Placeholder Expression</a></li> |
| </ul> |
| <p>Most of the MPL components accept either of those, and the concept |
| gives us a consice way to describe these requirements.</p> |
| </div> |
| <div class="section" id="id832"> |
| <h3><a class="subsection-title" href="#expression-requirements" name="expression-requirements">Expression requirements</a></h3> |
| <p>See corresponding <a class="reference internal" href="./metafunction-class.html">Metafunction Class</a> and <a class="reference internal" href="./placeholder-expression.html">Placeholder Expression</a> specifications.</p> |
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| <div class="section" id="id833"> |
| <h3><a class="subsection-title" href="#models" name="models">Models</a></h3> |
| <ul class="simple"> |
| <li><a class="reference internal" href="./always.html">always</a></li> |
| <li><a class="reference internal" href="./unpack-args.html">unpack_args</a></li> |
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| <li><tt class="literal"><span class="pre"><a href="./if.html" class="identifier">if_</a><</span> <span class="pre"><a href="./less.html" class="identifier">less</a><<a href="./placeholders.html" class="identifier">_1</a>,</span> <span class="pre"><a href="./int.html" class="identifier">int_</a><7></span> <span class="pre">>,</span> <span class="pre"><a href="./plus.html" class="identifier">plus</a><<a href="./placeholders.html" class="identifier">_1</a>,<a href="./placeholders.html" class="identifier">_2</a>>,</span> <span class="pre"><a href="./placeholders.html" class="identifier">_1</a></span> <span class="pre">></span></tt></li> |
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| <div class="section" id="id834"> |
| <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> |
| <p><a class="reference internal" href="./metafunctions.html">Metafunctions</a>, <a class="reference internal" href="./placeholders.html">Placeholders</a>, <a class="reference internal" href="./apply.html">apply</a>, <a class="reference internal" href="./lambda.html">lambda</a></p> |
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