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<a href="a01317.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">// Standard iostream objects -*- 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) 1997-2013 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 include/iostream</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * This is a Standard C++ Library header.</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">//</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// ISO C++ 14882: 27.3 Standard iostream objects</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">//</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">#ifndef _GLIBCXX_IOSTREAM</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor"></span><span class="preprocessor">#define _GLIBCXX_IOSTREAM 1</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#pragma GCC system_header</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include <<a class="code" href="a01070.html">bits/c++config.h</a>></span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <<a class="code" href="a01400.html">ostream</a>></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#include <<a class="code" href="a01318.html">istream</a>></span></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">namespace </span>std _GLIBCXX_VISIBILITY(default)</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> {</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"></span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> /**</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * @name Standard Stream Objects</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> * The &lt;iostream&gt; header declares the eight <em>standard stream</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> * objects</em>. For other declarations, see</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt11ch24.html</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * and the @link iosfwd I/O forward declarations @endlink</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> * They are required by default to cooperate with the global C</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"> * library's @c FILE streams, and to be available during program</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> * startup and termination. For more information, see the HOWTO</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * linked to above.</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> */</span><span class="comment"></span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> //@{</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"></span> <span class="keyword">extern</span> <a class="code" href="a01693.html#ga9a51d9b711a836df9c086f3a5e30b8b2">istream</a> <a class="code" href="a01662.html#afdcd7ecbf1544ef3f79b89f0dd06c3b7">cin</a>; <span class="comment">/// Linked to standard input</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"></span> <span class="keyword">extern</span> <a class="code" href="a01693.html#ga55d4c0674fbacb7514ae76310aeb4bf8">ostream</a> <a class="code" href="a01662.html#aaf93fdf0812752e0e02c501dea1b38f0">cout</a>; <span class="comment">/// Linked to standard output</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"></span> <span class="keyword">extern</span> <a class="code" href="a01693.html#ga55d4c0674fbacb7514ae76310aeb4bf8">ostream</a> <a class="code" href="a01662.html#a7431d56d1e8cd7a9b854171294bd71c7">cerr</a>; <span class="comment">/// Linked to standard error (unbuffered)</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"></span> <span class="keyword">extern</span> <a class="code" href="a01693.html#ga55d4c0674fbacb7514ae76310aeb4bf8">ostream</a> <a class="code" href="a01662.html#a7e2a2fc4b5924b7292c0566ca4c95463">clog</a>; <span class="comment">/// Linked to standard error (buffered)</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"></span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#ifdef _GLIBCXX_USE_WCHAR_T</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor"></span> <span class="keyword">extern</span> <a class="code" href="a01693.html#ga9bfb52397cc747f9945d73a1f38e86e8">wistream</a> <a class="code" href="a01662.html#ab1807d3145162e06150b063da4da2707">wcin</a>; <span class="comment">/// Linked to standard input</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"></span> <span class="keyword">extern</span> <a class="code" href="a01693.html#ga9ad6702c06821cdd550e08ef2b70f3b7">wostream</a> <a class="code" href="a01662.html#a2f5fc307ed84f0ecfbc36d2cda322040">wcout</a>; <span class="comment">/// Linked to standard output</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"></span> <span class="keyword">extern</span> <a class="code" href="a01693.html#ga9ad6702c06821cdd550e08ef2b70f3b7">wostream</a> <a class="code" href="a01662.html#ae50854b2a6629e6504846f8aff472e7e">wcerr</a>; <span class="comment">/// Linked to standard error (unbuffered)</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"></span> <span class="keyword">extern</span> <a class="code" href="a01693.html#ga9ad6702c06821cdd550e08ef2b70f3b7">wostream</a> <a class="code" href="a01662.html#a09e3edb1609f2a7fb18370eab59ba8dc">wclog</a>; <span class="comment">/// Linked to standard error (buffered)</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor"></span><span class="comment"> //@}</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"></span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// For construction of filebuffers for cout, cin, cerr, clog et. al.</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="a01662.html#a7f2a8c6d20dc1d386dd1cfd42f7e3530"> 74</a></span>  <span class="keyword">static</span> ios_base::Init <a class="code" href="a01662.html#a7f2a8c6d20dc1d386dd1cfd42f7e3530">__ioinit</a>;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> _GLIBCXX_END_NAMESPACE_VERSION</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> } <span class="comment">// namespace</span></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="preprocessor">#endif </span><span class="comment">/* _GLIBCXX_IOSTREAM */</span><span class="preprocessor"></span></div>
<div class="ttc" id="a01693_html_ga55d4c0674fbacb7514ae76310aeb4bf8"><div class="ttname"><a href="a01693.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="a01316_source.html#l00136">iosfwd:136</a></div></div>
<div class="ttc" id="a01662_html_afdcd7ecbf1544ef3f79b89f0dd06c3b7"><div class="ttname"><a href="a01662.html#afdcd7ecbf1544ef3f79b89f0dd06c3b7">std::cin</a></div><div class="ttdeci">istream cin</div><div class="ttdoc">Linked to standard input. </div></div>
<div class="ttc" id="a01662_html_ae50854b2a6629e6504846f8aff472e7e"><div class="ttname"><a href="a01662.html#ae50854b2a6629e6504846f8aff472e7e">std::wcerr</a></div><div class="ttdeci">wostream wcerr</div><div class="ttdoc">Linked to standard output. </div></div>
<div class="ttc" id="a01662_html_ab1807d3145162e06150b063da4da2707"><div class="ttname"><a href="a01662.html#ab1807d3145162e06150b063da4da2707">std::wcin</a></div><div class="ttdeci">wistream wcin</div><div class="ttdoc">Linked to standard error (buffered) </div></div>
<div class="ttc" id="a01662_html_a7431d56d1e8cd7a9b854171294bd71c7"><div class="ttname"><a href="a01662.html#a7431d56d1e8cd7a9b854171294bd71c7">std::cerr</a></div><div class="ttdeci">ostream cerr</div><div class="ttdoc">Linked to standard output. </div></div>
<div class="ttc" id="a01662_html_a7f2a8c6d20dc1d386dd1cfd42f7e3530"><div class="ttname"><a href="a01662.html#a7f2a8c6d20dc1d386dd1cfd42f7e3530">std::__ioinit</a></div><div class="ttdeci">static ios_base::Init __ioinit</div><div class="ttdoc">Linked to standard error (buffered) </div><div class="ttdef"><b>Definition:</b> <a href="a01317_source.html#l00074">iostream:74</a></div></div>
<div class="ttc" id="a01318_html"><div class="ttname"><a href="a01318.html">istream</a></div></div>
<div class="ttc" id="a01070_html"><div class="ttname"><a href="a01070.html">c++config.h</a></div></div>
<div class="ttc" id="a01693_html_ga9ad6702c06821cdd550e08ef2b70f3b7"><div class="ttname"><a href="a01693.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="a01316_source.html#l00176">iosfwd:176</a></div></div>
<div class="ttc" id="a01693_html_ga9a51d9b711a836df9c086f3a5e30b8b2"><div class="ttname"><a href="a01693.html#ga9a51d9b711a836df9c086f3a5e30b8b2">std::istream</a></div><div class="ttdeci">basic_istream< char > istream</div><div class="ttdoc">Base class for char input streams. </div><div class="ttdef"><b>Definition:</b> <a href="a01316_source.html#l00133">iosfwd:133</a></div></div>
<div class="ttc" id="a01662_html_a7e2a2fc4b5924b7292c0566ca4c95463"><div class="ttname"><a href="a01662.html#a7e2a2fc4b5924b7292c0566ca4c95463">std::clog</a></div><div class="ttdeci">ostream clog</div><div class="ttdoc">Linked to standard error (unbuffered) </div></div>
<div class="ttc" id="a01400_html"><div class="ttname"><a href="a01400.html">ostream</a></div></div>
<div class="ttc" id="a01662_html_a09e3edb1609f2a7fb18370eab59ba8dc"><div class="ttname"><a href="a01662.html#a09e3edb1609f2a7fb18370eab59ba8dc">std::wclog</a></div><div class="ttdeci">wostream wclog</div><div class="ttdoc">Linked to standard error (unbuffered) </div></div>
<div class="ttc" id="a01662_html_a2f5fc307ed84f0ecfbc36d2cda322040"><div class="ttname"><a href="a01662.html#a2f5fc307ed84f0ecfbc36d2cda322040">std::wcout</a></div><div class="ttdeci">wostream wcout</div><div class="ttdoc">Linked to standard input. </div></div>
<div class="ttc" id="a01662_html_aaf93fdf0812752e0e02c501dea1b38f0"><div class="ttname"><a href="a01662.html#aaf93fdf0812752e0e02c501dea1b38f0">std::cout</a></div><div class="ttdeci">ostream cout</div><div class="ttdoc">Linked to standard input. </div></div>
<div class="ttc" id="a01693_html_ga9bfb52397cc747f9945d73a1f38e86e8"><div class="ttname"><a href="a01693.html#ga9bfb52397cc747f9945d73a1f38e86e8">std::wistream</a></div><div class="ttdeci">basic_istream< wchar_t > wistream</div><div class="ttdoc">Base class for wchar_t input streams. </div><div class="ttdef"><b>Definition:</b> <a href="a01316_source.html#l00173">iosfwd:173</a></div></div>
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