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layout: stdlib-reference
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# IFunc\<TR, each TP\>\.operator\(\)

## Description





## Signature 

<pre>
<a href="index.html#typeparam-TR" class="code_type">TR</a> <a href="index.html" class="code_type">IFunc</a>&lt;<a href="index.html#typeparam-TR" class="code_type">TR</a>, <span class="code_keyword">each</span> <a href="index.html#typeparam-TP" class="code_type">TP</a>&gt;.operator()(<a href="index.html#typeparam-TP" class="code_type">TP</a> <a href="operatorx28x29.html#decl-p" class="code_param">p</a>);

</pre>

## Parameters

####  <a id="decl-p"></a>p  : [TP](index.html#typeparam-TP)