<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.15"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>libstdc++: ostream_insert.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtreedata.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(initResizable); /* @license-end */</script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">libstdc++ </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.15 --> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(function(){initNavTree('a00434_source.html','');}); /* @license-end */ </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">ostream_insert.h</div> </div> </div><!--header--> <div class="contents"> <a href="a00434.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Helpers for ostream inserters -*- C++ -*-</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Copyright (C) 2007-2018 Free Software Foundation, Inc.</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// This file is part of the GNU ISO C++ Library. This library is free</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// software; you can redistribute it and/or modify it under the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// terms of the GNU General Public License as published by the</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Free Software Foundation; either version 3, or (at your option)</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// any later version.</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// This library is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// GNU General Public License for more details.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// 3.1, as published by the Free Software Foundation.</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// You should have received a copy of the GNU General Public License and</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// <http://www.gnu.org/licenses/>.</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">/** @file bits/ostream_insert.h</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * This is an internal header file, included by other library headers.</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * Do not attempt to use it directly. @headername{ostream}</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> */</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#ifndef _OSTREAM_INSERT_H</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#define _OSTREAM_INSERT_H 1</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#pragma GCC system_header</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="a00083.html">iosfwd</a>></span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="a00314.html">bits/cxxabi_forced.h</a>></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">namespace </span><a class="code" href="a01538.html">std</a> _GLIBCXX_VISIBILITY(default)</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  __ostream_write(basic_ostream<_CharT, _Traits>& __out,</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">const</span> _CharT* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n)</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">typedef</span> basic_ostream<_CharT, _Traits> __ostream_type; </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> __ostream_type::ios_base __ios_base;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">const</span> <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __put = __out.rdbuf()->sputn(__s, __n);</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">if</span> (__put != __n)</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  __out.setstate(__ios_base::badbit);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  }</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  __ostream_fill(basic_ostream<_CharT, _Traits>& __out, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n)</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  {</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keyword">typedef</span> basic_ostream<_CharT, _Traits> __ostream_type; </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> __ostream_type::ios_base __ios_base;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">const</span> _CharT __c = __out.fill();</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">for</span> (; __n > 0; --__n)</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keyword">const</span> <span class="keyword">typename</span> _Traits::int_type __put = __out.rdbuf()->sputc(__c);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (_Traits::eq_int_type(__put, _Traits::eof()))</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  {</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  __out.setstate(__ios_base::badbit);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">template</span><<span class="keyword">typename</span> _CharT, <span class="keyword">typename</span> _Traits></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  basic_ostream<_CharT, _Traits>&</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  __ostream_insert(basic_ostream<_CharT, _Traits>& __out,</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">const</span> _CharT* __s, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __n)</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  {</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">typedef</span> basic_ostream<_CharT, _Traits> __ostream_type;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> __ostream_type::ios_base __ios_base;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">typename</span> __ostream_type::sentry __cerb(__out);</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keywordflow">if</span> (__cerb)</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  {</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  __try</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  {</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keyword">const</span> <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a> __w = __out.width();</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (__w > __n)</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> __left = ((__out.flags()</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  & __ios_base::adjustfield)</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  == <a class="code" href="a01538.html#a96d1c2cab30f14f4e34ccb460f1ad1c9">__ios_base::left</a>);</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> (!__left)</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  __ostream_fill(__out, __w - __n);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">if</span> (__out.good())</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  __ostream_write(__out, __s, __n);</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">if</span> (__left && __out.good())</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  __ostream_fill(__out, __w - __n);</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  }</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  __ostream_write(__out, __s, __n);</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  __out.width(0);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  __catch(<a class="code" href="a05332.html">__cxxabiv1::__forced_unwind</a>&)</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  {</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  __out._M_setstate(__ios_base::badbit);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  __throw_exception_again;</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  }</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  __catch(...)</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  { __out._M_setstate(__ios_base::badbit); }</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  }</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> __out;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  }</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="comment">// Inhibit implicit instantiations for required instantiations,</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="comment">// which are defined via explicit instantiations elsewhere.</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor">#if _GLIBCXX_EXTERN_TEMPLATE</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">extern</span> <span class="keyword">template</span> <a class="code" href="a01470.html#ga55d4c0674fbacb7514ae76310aeb4bf8">ostream</a>& __ostream_insert(<a class="code" href="a01470.html#ga55d4c0674fbacb7514ae76310aeb4bf8">ostream</a>&, <span class="keyword">const</span> <span class="keywordtype">char</span>*, <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a>);</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="preprocessor">#ifdef _GLIBCXX_USE_WCHAR_T</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">extern</span> <span class="keyword">template</span> <a class="code" href="a01470.html#ga9ad6702c06821cdd550e08ef2b70f3b7">wostream</a>& __ostream_insert(<a class="code" href="a01470.html#ga9ad6702c06821cdd550e08ef2b70f3b7">wostream</a>&, <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>*,</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">streamsize</a>);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> } <span class="comment">// namespace std</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="preprocessor">#endif </span><span class="comment">/* _OSTREAM_INSERT_H */</span><span class="preprocessor"></span></div><div class="ttc" id="a01538_html_a96d1c2cab30f14f4e34ccb460f1ad1c9"><div class="ttname"><a href="a01538.html#a96d1c2cab30f14f4e34ccb460f1ad1c9">std::left</a></div><div class="ttdeci">ios_base & left(ios_base &__base)</div><div class="ttdoc">Calls base.setf(ios_base::left, ios_base::adjustfield).</div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l01001">ios_base.h:1001</a></div></div> <div class="ttc" id="a01470_html_ga9ad6702c06821cdd550e08ef2b70f3b7"><div class="ttname"><a href="a01470.html#ga9ad6702c06821cdd550e08ef2b70f3b7">std::wostream</a></div><div class="ttdeci">basic_ostream< wchar_t > wostream</div><div class="ttdoc">Base class for wchar_t output streams.</div><div class="ttdef"><b>Definition:</b> <a href="a00083_source.html#l00181">iosfwd:181</a></div></div> <div class="ttc" id="a05332_html"><div class="ttname"><a href="a05332.html">__cxxabiv1::__forced_unwind</a></div><div class="ttdoc">Thrown as part of forced unwinding.A magic placeholder class that can be caught by reference to recog...</div><div class="ttdef"><b>Definition:</b> <a href="a00314_source.html#l00048">cxxabi_forced.h:48</a></div></div> <div class="ttc" id="a00314_html"><div class="ttname"><a href="a00314.html">cxxabi_forced.h</a></div></div> <div class="ttc" id="a00083_html"><div class="ttname"><a href="a00083.html">iosfwd</a></div></div> <div class="ttc" id="a01470_html_ga55d4c0674fbacb7514ae76310aeb4bf8"><div class="ttname"><a href="a01470.html#ga55d4c0674fbacb7514ae76310aeb4bf8">std::ostream</a></div><div class="ttdeci">basic_ostream< char > ostream</div><div class="ttdoc">Base class for char output streams.</div><div class="ttdef"><b>Definition:</b> <a href="a00083_source.html#l00141">iosfwd:141</a></div></div> <div class="ttc" id="a01538_html"><div class="ttname"><a href="a01538.html">std</a></div><div class="ttdoc">ISO C++ entities toplevel namespace is std.</div></div> <div class="ttc" id="a01538_html_a05eef5582eb5de62b76db4916f7adb84"><div class="ttname"><a href="a01538.html#a05eef5582eb5de62b76db4916f7adb84">std::streamsize</a></div><div class="ttdeci">ptrdiff_t streamsize</div><div class="ttdoc">Integral type for I/O operation counts and buffer sizes.</div><div class="ttdef"><b>Definition:</b> <a href="a00440_source.html#l00098">postypes.h:98</a></div></div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="dir_3a83f109ff04170a1f8448445d1bdcba.html">include</a></li><li class="navelem"><a class="el" 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