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📁 《Big C++ 》Third Edition电子书和代码全集-Part1

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<h2><font color="#009999">24.7 Standard Function Objects, Predicates, and
	Binders (cont.)</font></h2>
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<ul>
	<li><i>negator</i> - another category of binder</li>
	<li><tt>not1</tt> takes a unary predicate, inverts the result</li>
	<li><tt>not2</tt> takes a binary predicate, inverts the result</li>
	<li>E.g., find the first non-negative number:
		<blockquote><tt>
			list&lt;int&gt;::iterator first_positive =<br>
			&nbsp;&nbsp;&nbsp;find_if( a.begin(), a.end(),<br>
			&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
				not1( bind2nd( less&lt;int&gt;(), 0 )) );
		</tt></blockquote>
	</li>
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