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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="push_back.html" title="cpp/string/basic string/push back"><span class="t-lines"><span>basic_string::push_back</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="pop_back.html" title="cpp/string/basic string/pop back"><span class="t-lines"><span>basic_string::pop_back</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="append.html" title="cpp/string/basic string/append"><span class="t-lines"><span>basic_string::append</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator+=.html" title="cpp/string/basic string/operator+="><span class="t-lines"><span>basic_string::operator+=</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="compare.html" title="cpp/string/basic string/compare"><span class="t-lines"><span>basic_string::compare</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="replace.html" title="cpp/string/basic string/replace"><span class="t-lines"><span>basic_string::replace</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="substr.html" title="cpp/string/basic string/substr"><span class="t-lines"><span>basic_string::substr</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="copy.html" title="cpp/string/basic string/copy"><span class="t-lines"><span>basic_string::copy</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="resize.html" title="cpp/string/basic string/resize"><span class="t-lines"><span>basic_string::resize</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="swap.html" title="cpp/string/basic string/swap"><span class="t-lines"><span>basic_string::swap</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Search</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="find.html" title="cpp/string/basic string/find"><span class="t-lines"><span>basic_string::find</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="rfind.html" title="cpp/string/basic string/rfind"><span class="t-lines"><span>basic_string::rfind</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="find_first_of.html" title="cpp/string/basic string/find first of"><span class="t-lines"><span>basic_string::find_first_of</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="find_first_not_of.html" title="cpp/string/basic string/find first not of"><span class="t-lines"><span>basic_string::find_first_not_of</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="find_last_of.html" title="cpp/string/basic string/find last of"><span class="t-lines"><span>basic_string::find_last_of</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="find_last_not_of.html" title="cpp/string/basic string/find last not of"><span class="t-lines"><span>basic_string::find_last_not_of</span></span></a></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Constants</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="npos.html" title="cpp/string/basic string/npos"><span class="t-lines"><span>basic_string::npos</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h1"><td colspan="5"> Non-member functions</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator+.html" title="cpp/string/basic string/operator+"><span class="t-lines"><span>operator+</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator_cmp.html" title="cpp/string/basic string/operator cmp"><span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator&lt;</span><span>operator&gt;</span><span>operator&lt;=</span><span>operator&gt;=</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="swap2.html" title="cpp/string/basic string/swap2"><span class="t-lines"><span>swap<span class="t-dsc-small">(std::basic_string)</span></span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="operator_ltltgtgt.html" title="cpp/string/basic string/operator ltltgtgt"><span class="t-lines"><span>operator&lt;&lt;</span><span>operator&gt;&gt;</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="getline.html" title="cpp/string/basic string/getline"><span class="t-lines"><span>getline</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="stol.html" title="cpp/string/basic string/stol"><span class="t-lines"><span>stoi</span><span>stol</span><span>stoll</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="stoul.html" title="cpp/string/basic string/stoul"><span class="t-lines"><span>stoul</span><span>stoull</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="stof.html" title="cpp/string/basic string/stof"><span class="t-lines"><span>stof</span><span>stod</span><span>stold</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="to_string.html" title="cpp/string/basic string/to string"><span class="t-lines"><span>to_string</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="to_wstring.html" title="cpp/string/basic string/to wstring"><span class="t-lines"><span>to_wstring</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Helper classes</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="hash.html" title="cpp/string/basic string/hash"><span class="t-lines"><span>hash<span class="t-dsc-small">&lt;std::string&gt;</span></span><span>hash<span class="t-dsc-small">&lt;std::wstring&gt;</span></span><span>hash<span class="t-dsc-small">&lt;std::u32string&gt;</span></span><span>hash<span class="t-dsc-small">&lt;std::u16string&gt;</span></span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/string/basic_string/navbar_content&amp;action=edit">&#91;edit&#93;</a></span></div></div></div></div><div class="t-navbar-sep">&#160;</div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp">basic_string<span class="sy3">&amp;</span> insert<span class="br0">&#40;</span> size_type index, size_type count, CharT ch <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td> (1) </td>
<td class="t-dcl-nopad">  </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp">basic_string<span class="sy3">&amp;</span> insert<span class="br0">&#40;</span> size_type index, <span class="kw4">const</span> CharT<span class="sy2">*</span> s <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td> (2) </td>
<td class="t-dcl-nopad">  </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp">basic_string<span class="sy3">&amp;</span> insert<span class="br0">&#40;</span> size_type index, <span class="kw4">const</span> CharT<span class="sy2">*</span> s, size_type count <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td> (3) </td>
<td class="t-dcl-nopad">  </td>
</tr>
<tr class="t-dcl">
<td> <div><span class="mw-geshi cpp source-cpp">basic_string<span class="sy3">&amp;</span> insert<span class="br0">&#40;</span> size_type index, <span class="kw4">const</span> basic_string<span class="sy3">&amp;</span> str <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td> (4) </td>
<td class="t-dcl-nopad">  </td>
</tr>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num"><tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(5)</td>
<td></td>
</tr>
<tr class="t-dcl t-until-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp">basic_string<span class="sy3">&amp;</span> insert<span class="br0">&#40;</span> size_type index, <span class="kw4">const</span> basic_string<span class="sy3">&amp;</span> str,<br />
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; size_type index_str, size_type count <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-until-cxx14">(until C++14)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx14">
<td> <div><span class="mw-geshi cpp source-cpp">basic_string<span class="sy3">&amp;</span> insert<span class="br0">&#40;</span> size_type index, <span class="kw4">const</span> basic_string<span class="sy3">&amp;</span> str,<br />
&#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; &#160; size_type index_str, size_type count <span class="sy1">=</span> npos<span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-since-cxx14">(since C++14)</span> </td>
</tr>
</tbody><tbody>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num"><tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(6)</td>
<td></td>
</tr>
<tr class="t-dcl t-until-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp">iterator insert<span class="br0">&#40;</span> iterator pos, CharT ch <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-until-cxx11">(until C++11)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp">iterator insert<span class="br0">&#40;</span> const_iterator pos, CharT ch <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-since-cxx11">(since C++11)</span> </td>
</tr>
</tbody><tbody>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num"><tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(7)</td>
<td></td>
</tr>
<tr class="t-dcl t-until-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw4">void</span> insert<span class="br0">&#40;</span> iterator pos, size_type count, CharT ch <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-until-cxx11">(until C++11)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp">iterator insert<span class="br0">&#40;</span> const_iterator pos, size_type count, CharT ch <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-since-cxx11">(since C++11)</span> </td>
</tr>
</tbody><tbody>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num"><tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(8)</td>
<td></td>
</tr>
<tr class="t-dcl t-until-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> InputIt <span class="sy1">&gt;</span><br />
<span class="kw4">void</span> insert<span class="br0">&#40;</span> iterator pos, InputIt first, InputIt last <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-until-cxx11">(until C++11)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> InputIt <span class="sy1">&gt;</span><br />
iterator insert<span class="br0">&#40;</span> const_iterator pos, InputIt first, InputIt last <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td> <span class="t-mark-rev t-since-cxx11">(since C++11)</span> </td>
</tr>
</tbody><tbody>
<tr class="t-dcl t-since-cxx11">
<td> <div><span class="mw-geshi cpp source-cpp">iterator insert<span class="br0">&#40;</span> const_iterator pos, <a href="../../utility/initializer_list.html"><span class="kw838">std::<span class="me2">initializer_list</span></span></a><span class="sy1">&lt;</span>CharT<span class="sy1">&gt;</span> ilist <span class="br0">&#41;</span><span class="sy4">;</span></span></div></td>
<td> (9) </td>
<td> <span class="t-mark-rev t-since-cxx11">(since C++11)</span> </td>
</tr>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p>Inserts characters into the string.
</p>
<div class="t-li1"><span class="t-li">1)</span> Inserts <code>count</code> copies of character <code>ch</code> at the position <code>index</code></div>
<div class="t-li1"><span class="t-li">2)</span> Inserts null-terminated character string pointed to by <code>s</code> at the position <code>index</code>. The length of the string is determined by the first null character (effectively calls <span class="t-c"><span class="mw-geshi cpp source-cpp">Traits<span class="sy4">::</span><span class="me2">length</span><span class="br0">&#40;</span>s<span class="br0">&#41;</span></span></span>. </div>
<div class="t-li1"><span class="t-li">3)</span> Inserts the first <code>count</code> characters from the character string pointed to by <code>s</code> at the position <code>index</code>. <code>s</code> can contain null characters.</div>
<div class="t-li1"><span class="t-li">4)</span> Inserts string <code>str</code> at the position <code>index</code></div>
<div class="t-li1"><span class="t-li">5)</span> Inserts a string, obtained by <span class="t-c"><span class="mw-geshi cpp source-cpp">str.<span class="me1">substr</span><span class="br0">&#40;</span>index_str, count<span class="br0">&#41;</span></span></span> at the position <code>index</code></div>
<div class="t-li1"><span class="t-li">6)</span> Inserts character <code>ch</code> before the character pointed by <code>pos</code></div>
<div class="t-li1"><span class="t-li">7)</span> Inserts <code>count</code> copies of character <code>ch</code> before the element pointed by <code>pos</code></div>
<div class="t-li1"><span class="t-li">8)</span> Inserts characters from the range <code>[first, last)</code> before the element pointed by <code>pos</code>. <span class="t-rev-inl t-since-cxx11"><span>This overload does not participate in overload resolution if <code>InputIt</code> does not satisfy <a href="../../concept/InputIterator.html" title="cpp/concept/InputIterator"><code>InputIterator</code></a>.</span> <span><span class="t-mark-rev t-since-cxx11">(since C++11)</span></span></span></div>
<div class="t-li1"><span class="t-li">9)</span> Inserts elements from initializer list <code>ilist</code> before the element pointed by <code>pos</code></div>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="insert.html#Parameters"><span class="tocnumber">1</span> <span class="toctext">Parameters</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="insert.html#Return_value"><span class="tocnumber">2</span> <span class="toctext">Return value</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="insert.html#Exceptions"><span class="tocnumber">3</span> <span class="toctext">Exceptions</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="insert.html#Example"><span class="tocnumber">4</span> <span class="toctext">Example</span></a></li>
<li class="toclevel-1 tocsection-5"><a href="insert.html#See_also"><span class="tocnumber">5</span> <span class="toctext">See also</span></a></li>
</ul>
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/string/basic_string/insert&amp;action=edit&amp;section=1" title="Edit section: Parameters">edit</a>]</span> <span class="mw-headline" id="Parameters">Parameters</span></h3>
<table class="t-par-begin">


<tr class="t-par">
<td>  index
</td>
<td> -
</td>
<td>  position at which the content will be inserted
</td></tr>
<tr class="t-par">
<td>  pos
</td>
<td> -
</td>
<td>  iterator before which the characters will be inserted
</td></tr>
<tr class="t-par">
<td>  ch
</td>
<td> -
</td>
<td>  character to insert
</td></tr>
<tr class="t-par">
<td>  count
</td>
<td> -
</td>
<td>  number of characters to insert
</td></tr>
<tr class="t-par">
<td>  s
</td>
<td> -
</td>
<td>  pointer to the character string to insert
</td></tr>
<tr class="t-par">
<td>  str
</td>
<td> -
</td>
<td>  string to insert
</td></tr>
<tr class="t-par">
<td>  first, last
</td>
<td> -
</td>
<td>  range defining characters to insert
</td></tr>
<tr class="t-par">
<td>  index_str
</td>
<td> -
</td>
<td>  position of the first character in the string <code>str</code> to insert
</td></tr>
<tr class="t-par">
<td>  ilist
</td>
<td> -
</td>
<td>  initializer list to insert the characters from
</td></tr>
<tr class="t-par-hitem">
<td colspan="3"> Type requirements
</td></tr>
<tr class="t-par-req">
<td colspan="3"> -<div class="spacer"></div><code>InputIt</code> must meet the requirements of <a href="../../concept/InputIterator.html" title="cpp/concept/InputIterator"><code>InputIterator</code></a>.
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/string/basic_string/insert&amp;action=edit&amp;section=2" title="Edit section: Return value">edit</a>]</span> <span class="mw-headline" id="Return_value">Return value</span></h3>
<div class="t-li1"><span class="t-li">1-5)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span></div>
<div class="t-li1"><span class="t-li">6-9)</span> An iterator which refers to the copy of the first inserted character or <code>pos</code> if no characters were inserted (<code>count==0</code> or <code>first==last</code> or <code>ilist.size()==0</code>)</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/string/basic_string/insert&amp;action=edit&amp;section=3" title="Edit section: Exceptions">edit</a>]</span> <span class="mw-headline" id="Exceptions">Exceptions</span></h3>
<div class="t-li1"><span class="t-li">1)</span> <span class="t-lc"><a href="../../error/out_of_range/out_of_range.html" title="cpp/error/out of range">std::out_of_range</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">index <span class="sy1">&gt;</span> size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span> and <span class="t-lc"><a href="../../error/length_error/length_error.html" title="cpp/error/length error">std::length_error</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">size<span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> count <span class="sy1">&gt;</span> max_size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span>.</div>
<div class="t-li1"><span class="t-li">2)</span> <span class="t-lc"><a href="../../error/out_of_range/out_of_range.html" title="cpp/error/out of range">std::out_of_range</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">index <span class="sy1">&gt;</span> size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span> and <span class="t-lc"><a href="../../error/length_error/length_error.html" title="cpp/error/length error">std::length_error</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">size<span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> Traits<span class="sy4">::</span><span class="me2">length</span><span class="br0">&#40;</span>s<span class="br0">&#41;</span> <span class="sy1">&gt;</span> max_size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span>.</div>
<div class="t-li1"><span class="t-li">3)</span> <span class="t-lc"><a href="../../error/out_of_range/out_of_range.html" title="cpp/error/out of range">std::out_of_range</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">index <span class="sy1">&gt;</span> size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span> and <span class="t-lc"><a href="../../error/length_error/length_error.html" title="cpp/error/length error">std::length_error</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">size<span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> count <span class="sy1">&gt;</span> max_size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span>.</div>
<div class="t-li1"><span class="t-li">4)</span> Throws exceptions on the following conditions:</div>
<div class="t-li2"><span class="t-li">a)</span> <span class="t-lc"><a href="../../error/out_of_range/out_of_range.html" title="cpp/error/out of range">std::out_of_range</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">index <span class="sy1">&gt;</span> size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span>.</div>
<div class="t-li2"><span class="t-li">b)</span> <span class="t-lc"><a href="../../error/length_error/length_error.html" title="cpp/error/length error">std::length_error</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">size<span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> str.<span class="me1">size</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy1">&gt;</span> max_size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span> where <code>ins_count</code> is the number of characters that will be inserted.</div>
<div class="t-li1"><span class="t-li">5)</span> Throws exceptions on the following conditions:</div>
<div class="t-li2"><span class="t-li">a)</span> <span class="t-lc"><a href="../../error/out_of_range/out_of_range.html" title="cpp/error/out of range">std::out_of_range</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">index <span class="sy1">&gt;</span> size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span>.</div>
<div class="t-li2"><span class="t-li">b)</span> <span class="t-lc"><a href="../../error/out_of_range/out_of_range.html" title="cpp/error/out of range">std::out_of_range</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">index_str <span class="sy1">&gt;</span> str.<span class="me1">size</span><span class="br0">&#40;</span><span class="br0">&#41;</span></span></span>.</div>
<div class="t-li2"><span class="t-li">c)</span> <span class="t-lc"><a href="../../error/length_error/length_error.html" title="cpp/error/length error">std::length_error</a></span> if <span class="t-c"><span class="mw-geshi cpp source-cpp">size<span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> ins_count <span class="sy1">&gt;</span> max_size<span class="br0">&#40;</span><span class="br0">&#41;</span></span></span> where <code>ins_count</code> is the number of characters that will be inserted.</div>
<div class="t-li1"><span class="t-li">6-9)</span> (none)</div>
<p><span class="t-rev-inl t-since-cxx11"><span>
In any case, if an exception is thrown for any reason, this function has no effect (strong exception guarantee).</span> <span><span class="t-mark-rev t-since-cxx11">(since C++11)</span></span></span>
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/string/basic_string/insert&amp;action=edit&amp;section=4" title="Edit section: Example">edit</a>]</span> <span class="mw-headline" id="Example">Example</span></h3>
<div class="t-example"><p>Until C++11
</p><div class="t-example-live-link"><div class="coliru-btn coliru-btn-run-init">Run this code</div></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include &lt;cassert&gt;</span>
<span class="co2">#include &lt;string&gt;</span>
&#160;
<span class="kw4">int</span> main<span class="br0">&#40;</span><span class="br0">&#41;</span>
<span class="br0">&#123;</span>
    <a href="../basic_string.html"><span class="kw1072">std::<span class="me2">string</span></span></a> s<span class="br0">&#40;</span><span class="st0">&quot;xmplr&quot;</span><span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(size_type index, size_type count, char ch)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span><span class="nu0">0</span>, <span class="nu0">1</span>, <span class="st0">'E'</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exmplr&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(size_type index, char* s)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span><span class="nu0">2</span>, <span class="st0">&quot;e&quot;</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplr&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(size_type index, string const&amp; str)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span><span class="nu0">6</span>, <a href="../basic_string.html"><span class="kw1072">std::<span class="me2">string</span></span></a><span class="br0">&#40;</span><span class="st0">&quot;a&quot;</span><span class="br0">&#41;</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(size_type index, string const&amp; str,</span>
    <span class="co1">//     size_type index_str, size_type count)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span><span class="nu0">8</span>, <a href="../basic_string.html"><span class="kw1072">std::<span class="me2">string</span></span></a><span class="br0">&#40;</span><span class="st0">&quot; is an example string.&quot;</span><span class="br0">&#41;</span>, <span class="nu0">0</span>, <span class="nu0">14</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar is an example&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(iterator pos, char ch)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span>s.<span class="me1">begin</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> s.<span class="me1">find_first_of</span><span class="br0">&#40;</span><span class="st0">'n'</span><span class="br0">&#41;</span> <span class="sy2">+</span> <span class="nu0">1</span>, <span class="st0">':'</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar is an: example&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(iterator pos, size_type count, char ch)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span>s.<span class="me1">begin</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> s.<span class="me1">find_first_of</span><span class="br0">&#40;</span><span class="st0">':'</span><span class="br0">&#41;</span> <span class="sy2">+</span> <span class="nu0">1</span>, <span class="nu0">2</span>, <span class="st0">'='</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar is an:== example&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(iterator pos, InputIt first, InputIt last)</span>
    <span class="br0">&#123;</span>
        <a href="../basic_string.html"><span class="kw1072">std::<span class="me2">string</span></span></a> <span class="kw4">const</span> seq<span class="br0">&#40;</span><span class="st0">&quot; suitable&quot;</span><span class="br0">&#41;</span><span class="sy4">;</span>
        s.<span class="me1">insert</span><span class="br0">&#40;</span>s.<span class="me1">begin</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> s.<span class="me1">find_last_of</span><span class="br0">&#40;</span><span class="st0">'='</span><span class="br0">&#41;</span> <span class="sy2">+</span> <span class="nu0">1</span>,
            seq.<span class="me1">begin</span><span class="br0">&#40;</span><span class="br0">&#41;</span>, seq.<span class="me1">end</span><span class="br0">&#40;</span><span class="br0">&#41;</span><span class="br0">&#41;</span><span class="sy4">;</span>
        <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar is an:== suitable example&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
    <span class="br0">&#125;</span>
<span class="br0">&#125;</span></pre></div></div>
<p><br /> 
</p>
</div>
<div class="t-example"><p>C++11
</p><div class="t-example-live-link"><div class="coliru-btn coliru-btn-run-init">Run this code</div></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include &lt;cassert&gt;</span>
<span class="co2">#include &lt;iterator&gt;</span>
<span class="co2">#include &lt;string&gt;</span>
&#160;
<span class="kw4">int</span> main<span class="br0">&#40;</span><span class="br0">&#41;</span>
<span class="br0">&#123;</span>
    <a href="../basic_string.html"><span class="kw1072">std::<span class="me2">string</span></span></a> s<span class="br0">&#123;</span> <span class="st0">&quot;xmplr&quot;</span> <span class="br0">&#125;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(size_type index, size_type count, char ch)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span><span class="nu0">0</span>, <span class="nu0">1</span>, <span class="st0">'E'</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exmplr&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(size_type index, char* s)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span><span class="nu0">2</span>, <span class="st0">&quot;e&quot;</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplr&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(size_type index, string const&amp; str)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span><span class="nu0">6</span>, <a href="../basic_string.html"><span class="kw1072">std::<span class="me2">string</span></span></a><span class="br0">&#40;</span><span class="st0">&quot;a&quot;</span><span class="br0">&#41;</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(size_type index, string const&amp; str,</span>
    <span class="co1">//     size_type index_str, size_type count)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span><span class="nu0">8</span>, <a href="../basic_string.html"><span class="kw1072">std::<span class="me2">string</span></span></a><span class="br0">&#40;</span><span class="st0">&quot; is an example string.&quot;</span><span class="br0">&#41;</span>, <span class="nu0">0</span>, <span class="nu0">14</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar is an example&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(const_iterator pos, char ch)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span>s.<span class="me1">cbegin</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> s.<span class="me1">find_first_of</span><span class="br0">&#40;</span><span class="st0">'n'</span><span class="br0">&#41;</span> <span class="sy2">+</span> <span class="nu0">1</span>, <span class="st0">':'</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar is an: example&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(const_iterator pos, size_type count, char ch)</span>
    s.<span class="me1">insert</span><span class="br0">&#40;</span>s.<span class="me1">cbegin</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> s.<span class="me1">find_first_of</span><span class="br0">&#40;</span><span class="st0">':'</span><span class="br0">&#41;</span> <span class="sy2">+</span> <span class="nu0">1</span>, <span class="nu0">2</span>, <span class="st0">'='</span><span class="br0">&#41;</span><span class="sy4">;</span>
    <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar is an:== example&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
&#160;
    <span class="co1">// insert(const_iterator pos, InputIt first, InputIt last)</span>
    <span class="br0">&#123;</span>
        <a href="../basic_string.html"><span class="kw1072">std::<span class="me2">string</span></span></a> <span class="kw4">const</span> seq<span class="br0">&#123;</span> <span class="st0">&quot; string&quot;</span> <span class="br0">&#125;</span><span class="sy4">;</span>
        s.<span class="me1">insert</span><span class="br0">&#40;</span>s.<span class="me1">begin</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> s.<span class="me1">find_last_of</span><span class="br0">&#40;</span><span class="st0">'e'</span><span class="br0">&#41;</span> <span class="sy2">+</span> <span class="nu0">1</span>,
            <a href="../../iterator/begin.html"><span class="kw581">std::<span class="me2">begin</span></span></a><span class="br0">&#40;</span>seq<span class="br0">&#41;</span>, <a href="../../iterator/end.html"><span class="kw585">std::<span class="me2">end</span></span></a><span class="br0">&#40;</span>seq<span class="br0">&#41;</span><span class="br0">&#41;</span><span class="sy4">;</span>
        <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar is an:== example string&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
    <span class="br0">&#125;</span>
&#160;
    <span class="co1">// insert(const_iterator pos, std::initializer_list&lt;char&gt;)</span>
    <span class="br0">&#123;</span>
        <a href="../../utility/initializer_list.html"><span class="kw838">std::<span class="me2">initializer_list</span></span></a><span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span> <span class="kw4">const</span> period <span class="sy1">=</span> <span class="br0">&#123;</span> <span class="st0">'.'</span> <span class="br0">&#125;</span><span class="sy4">;</span>
        s.<span class="me1">insert</span><span class="br0">&#40;</span>s.<span class="me1">cbegin</span><span class="br0">&#40;</span><span class="br0">&#41;</span> <span class="sy2">+</span> s.<span class="me1">find_first_of</span><span class="br0">&#40;</span><span class="st0">'g'</span><span class="br0">&#41;</span> <span class="sy2">+</span> <span class="nu0">1</span>, period<span class="br0">&#41;</span><span class="sy4">;</span>
        <a href="../../error/assert.html"><span class="kw654">assert</span></a><span class="br0">&#40;</span><span class="st0">&quot;Exemplar is an:== example string.&quot;</span> <span class="sy1">==</span> s<span class="br0">&#41;</span><span class="sy4">;</span>
    <span class="br0">&#125;</span>
<span class="br0">&#125;</span></pre></div></div>
<p><br /> 
</p>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/string/basic_string/insert&amp;action=edit&amp;section=5" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="append.html" title="cpp/string/basic string/append"> <span class="t-lines"><span>append</span></span></a></div></div>
</td>
<td>   appends characters to the end <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/string/basic_string/dsc_append&amp;action=edit">&#91;edit&#93;</a></span>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="push_back.html" title="cpp/string/basic string/push back"> <span class="t-lines"><span>push_back</span></span></a></div></div>
</td>
<td>   appends a character to the end <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/string/basic_string/dsc_push_back&amp;action=edit">&#91;edit&#93;</a></span>
</td></tr>
</table>

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