2017-07-14 23:24:09 +00:00
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2017-07-14 23:30:16 +00:00
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2017-07-14 23:24:09 +00:00
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2017-07-14 23:30:16 +00:00
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<title>cfg_if::cfg_if - Rust</title>
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2017-07-14 23:24:09 +00:00
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2017-07-14 23:30:16 +00:00
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2017-07-14 23:24:09 +00:00
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2017-07-14 23:30:16 +00:00
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<h1 class='fqn'><span class='in-band'>Macro <a href='index.html'>cfg_if</a>::<wbr><a class="macro" href=''>cfg_if</a></span><span class='out-of-band'><span id='render-detail'>
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2017-07-14 23:24:09 +00:00
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2017-07-14 23:30:16 +00:00
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</span><a class='srclink' href='../src/cfg_if/lib.rs.html#36-61' title='goto source code'>[src]</a></span></h1>
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2017-07-14 23:24:09 +00:00
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<pre class="rust macro">
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2017-07-14 23:30:16 +00:00
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<span class="macro">macro_rules</span><span class="macro">!</span> <span class="ident">cfg_if</span> {
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($(
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<span class="kw">if</span> <span class="attribute">#[<span class="ident">cfg</span>($(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">meta</span>:<span class="ident">meta</span>),<span class="kw-2">*</span>)]</span> { $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">it</span>:<span class="ident">item</span>)<span class="op">*</span> }
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) <span class="kw">else</span> <span class="op">*</span> <span class="kw">else</span> {
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$(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">it2</span>:<span class="ident">item</span>)<span class="op">*</span>
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}) <span class="op">=></span> { ... };
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(
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<span class="kw">if</span> <span class="attribute">#[<span class="ident">cfg</span>($(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">i_met</span>:<span class="ident">meta</span>),<span class="kw-2">*</span>)]</span> { $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">i_it</span>:<span class="ident">item</span>)<span class="op">*</span> }
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$(
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<span class="kw">else</span> <span class="kw">if</span> <span class="attribute">#[<span class="ident">cfg</span>($(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">e_met</span>:<span class="ident">meta</span>),<span class="kw-2">*</span>)]</span> { $(<span class="macro-nonterminal">$</span><span class="macro-nonterminal">e_it</span>:<span class="ident">item</span>)<span class="op">*</span> }
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)<span class="op">*</span>
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) <span class="op">=></span> { ... };
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2017-07-14 23:24:09 +00:00
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