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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head> <meta name="generator" content= "HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org"> <title>insert</title> <link href="../cppreference.css" rel="stylesheet" type="text/css"></head><body><table> <tr> <td> <div class="body-content"> <div class="header-box"> <a href="../index.html">cppreference.com</a> > <a href= "index.html">C++ Sets</a> > <a href="insert.html">insert</a> </div> <div class="name-format"> insert </div> <div class="syntax-name-format"> Syntax: </div> <pre class="syntax-box"> #include <set> iterator insert( iterator i, const <a href="../containers.html">TYPE</a>& val ); void insert( <a href="../iterators.html">input_iterator</a> start, <a href="../iterators.html">input_iterator</a> end ); pair<iterator,bool> insert( const <a href="../containers.html">TYPE</a>& val );</pre> <p>The function insert() either:</p> <ul> <li>inserts <em>val</em> after the element at <em>pos</em> (where <em>pos</em> is really just a suggestion as to where <em>val</em> should go, since sets and maps are ordered), and returns an iterator to that element.</li> <li>inserts a range of elements from <em>start</em> to <em>end</em>.</li> <li>inserts <em>val</em>, but only if <em>val</em> doesn't already exist. The return value is an iterator to the element inserted, and a boolean describing whether an insertion took place.</li> </ul> <div class="related-name-format"> Related topics: </div> <div class="related-content"> (C++ Maps) <a href="../cppmap/map_operators.html">Map operators</a> </div> </div> </td> </tr> </table></body></html>⌨️ 快捷键说明
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