<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://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"/> <title>libstdc++: strstream Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript"> $(document).ready(initResizable); </script> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.7.4 --> <div id="top"> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">libstdc++</div> </td> </tr> </tbody> </table> </div> </div> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> initNavTree('a01078.html',''); </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">strstream</div> </div> </div> <div class="contents"> <a href="a01078.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Backward-compat support -*- C++ -*-</span> <a name="l00002"></a>00002 <a name="l00003"></a>00003 <span class="comment">// Copyright (C) 2001, 2002, 2004, 2005, 2009, 2010, 2011</span> <a name="l00004"></a>00004 <span class="comment">// Free Software Foundation, Inc.</span> <a name="l00005"></a>00005 <span class="comment">//</span> <a name="l00006"></a>00006 <span class="comment">// This file is part of the GNU ISO C++ Library. This library is free</span> <a name="l00007"></a>00007 <span class="comment">// software; you can redistribute it and/or modify it under the</span> <a name="l00008"></a>00008 <span class="comment">// terms of the GNU General Public License as published by the</span> <a name="l00009"></a>00009 <span class="comment">// Free Software Foundation; either version 3, or (at your option)</span> <a name="l00010"></a>00010 <span class="comment">// any later version.</span> <a name="l00011"></a>00011 <a name="l00012"></a>00012 <span class="comment">// This library is distributed in the hope that it will be useful,</span> <a name="l00013"></a>00013 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span> <a name="l00014"></a>00014 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span> <a name="l00015"></a>00015 <span class="comment">// GNU General Public License for more details.</span> <a name="l00016"></a>00016 <a name="l00017"></a>00017 <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span> <a name="l00018"></a>00018 <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span> <a name="l00019"></a>00019 <span class="comment">// 3.1, as published by the Free Software Foundation.</span> <a name="l00020"></a>00020 <a name="l00021"></a>00021 <span class="comment">// You should have received a copy of the GNU General Public License and</span> <a name="l00022"></a>00022 <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span> <a name="l00023"></a>00023 <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span> <a name="l00024"></a>00024 <span class="comment">// <http://www.gnu.org/licenses/>.</span> <a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="comment">/*</span> <a name="l00027"></a>00027 <span class="comment"> * Copyright (c) 1998</span> <a name="l00028"></a>00028 <span class="comment"> * Silicon Graphics Computer Systems, Inc.</span> <a name="l00029"></a>00029 <span class="comment"> *</span> <a name="l00030"></a>00030 <span class="comment"> * Permission to use, copy, modify, distribute and sell this software</span> <a name="l00031"></a>00031 <span class="comment"> * and its documentation for any purpose is hereby granted without fee,</span> <a name="l00032"></a>00032 <span class="comment"> * provided that the above copyright notice appear in all copies and</span> <a name="l00033"></a>00033 <span class="comment"> * that both that copyright notice and this permission notice appear</span> <a name="l00034"></a>00034 <span class="comment"> * in supporting documentation. Silicon Graphics makes no</span> <a name="l00035"></a>00035 <span class="comment"> * representations about the suitability of this software for any</span> <a name="l00036"></a>00036 <span class="comment"> * purpose. It is provided "as is" without express or implied warranty.</span> <a name="l00037"></a>00037 <span class="comment"> */</span> <a name="l00038"></a>00038 <a name="l00039"></a>00039 <span class="comment">// WARNING: The classes defined in this header are DEPRECATED. This</span> <a name="l00040"></a>00040 <span class="comment">// header is defined in section D.7.1 of the C++ standard, and it</span> <a name="l00041"></a>00041 <span class="comment">// MAY BE REMOVED in a future standard revision. One should use the</span> <a name="l00042"></a>00042 <span class="comment">// header <sstream> instead.</span> <a name="l00043"></a>00043 <span class="comment"></span> <a name="l00044"></a>00044 <span class="comment">/** @file backward/strstream</span> <a name="l00045"></a>00045 <span class="comment"> * This is an internal header file, included by other library headers.</span> <a name="l00046"></a>00046 <span class="comment"> * Do not attempt to use it directly. @headername{sstream}</span> <a name="l00047"></a>00047 <span class="comment"> */</span> <a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="preprocessor">#ifndef _BACKWARD_STRSTREAM</span> <a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor">#define _BACKWARD_STRSTREAM</span> <a name="l00051"></a>00051 <span class="preprocessor"></span> <a name="l00052"></a>00052 <span class="preprocessor">#include "<a class="code" href="a00762.html">backward_warning.h</a>"</span> <a name="l00053"></a>00053 <span class="preprocessor">#include <<a class="code" href="a00910.html">iosfwd</a>></span> <a name="l00054"></a>00054 <span class="preprocessor">#include <<a class="code" href="a00908.html">ios</a>></span> <a name="l00055"></a>00055 <span class="preprocessor">#include <<a class="code" href="a00912.html">istream</a>></span> <a name="l00056"></a>00056 <span class="preprocessor">#include <<a class="code" href="a00967.html">ostream</a>></span> <a name="l00057"></a>00057 <span class="preprocessor">#include <string></span> <a name="l00058"></a>00058 <a name="l00059"></a>00059 <span class="keyword">namespace </span>std _GLIBCXX_VISIBILITY(default) <a name="l00060"></a>00060 { <a name="l00061"></a>00061 _GLIBCXX_BEGIN_NAMESPACE_VERSION <a name="l00062"></a>00062 <a name="l00063"></a>00063 <span class="comment">// Class strstreambuf, a streambuf class that manages an array of char.</span> <a name="l00064"></a>00064 <span class="comment">// Note that this class is not a template.</span> <a name="l00065"></a>00065 <span class="keyword">class </span>strstreambuf : <span class="keyword">public</span> basic_streambuf<char, char_traits<char> > <a name="l00066"></a>00066 { <a name="l00067"></a>00067 <span class="keyword">public</span>: <a name="l00068"></a>00068 <span class="comment">// Types.</span> <a name="l00069"></a>00069 <span class="keyword">typedef</span> char_traits<char> _Traits; <a name="l00070"></a>00070 <span class="keyword">typedef</span> basic_streambuf<char, _Traits> _Base; <a name="l00071"></a>00071 <a name="l00072"></a>00072 <span class="keyword">public</span>: <a name="l00073"></a>00073 <span class="comment">// Constructor, destructor</span> <a name="l00074"></a>00074 <span class="keyword">explicit</span> strstreambuf(<a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a> __initial_capacity = 0); <a name="l00075"></a>00075 strstreambuf(<span class="keywordtype">void</span>* (*__alloc)(<span class="keywordtype">size_t</span>), <span class="keywordtype">void</span> (*__free)(<span class="keywordtype">void</span>*)); <a name="l00076"></a>00076 <a name="l00077"></a>00077 strstreambuf(<span class="keywordtype">char</span>* __get, <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a> __n, <span class="keywordtype">char</span>* __put = 0) throw (); <a name="l00078"></a>00078 strstreambuf(<span class="keywordtype">signed</span> <span class="keywordtype">char</span>* __get, <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a> __n, <span class="keywordtype">signed</span> <span class="keywordtype">char</span>* __put = 0) throw (); <a name="l00079"></a>00079 strstreambuf(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* __get, <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a> __n, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* __put=0) throw (); <a name="l00080"></a>00080 <a name="l00081"></a>00081 strstreambuf(const <span class="keywordtype">char</span>* __get, <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a> __n) throw (); <a name="l00082"></a>00082 strstreambuf(const <span class="keywordtype">signed</span> <span class="keywordtype">char</span>* __get, <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a> __n) throw (); <a name="l00083"></a>00083 strstreambuf(const <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* __get, <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a> __n) throw (); <a name="l00084"></a>00084 <a name="l00085"></a>00085 virtual ~strstreambuf(); <a name="l00086"></a>00086 <a name="l00087"></a>00087 public: <a name="l00088"></a>00088 <span class="keywordtype">void</span> freeze(<span class="keywordtype">bool</span> = true) throw (); <a name="l00089"></a>00089 <span class="keywordtype">char</span>* str() throw (); <a name="l00090"></a>00090 _GLIBCXX_PURE <span class="keywordtype">int</span> pcount() const throw (); <a name="l00091"></a>00091 <a name="l00092"></a>00092 protected: <a name="l00093"></a>00093 virtual int_type overflow(int_type __c = _Traits::eof()); <a name="l00094"></a>00094 virtual int_type pbackfail(int_type __c = _Traits::eof()); <a name="l00095"></a>00095 virtual int_type underflow(); <a name="l00096"></a>00096 virtual _Base* setbuf(<span class="keywordtype">char</span>* __buf, <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a> __n); <a name="l00097"></a>00097 virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir, <a name="l00098"></a>00098 ios_base::openmode __mode <a name="l00099"></a>00099 = ios_base::in | ios_base::out); <a name="l00100"></a>00100 virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode <a name="l00101"></a>00101 = ios_base::in | ios_base::out); <a name="l00102"></a>00102 <a name="l00103"></a>00103 private: <a name="l00104"></a>00104 strstreambuf& <a name="l00105"></a>00105 operator=(const strstreambuf&); <a name="l00106"></a>00106 <a name="l00107"></a>00107 strstreambuf(const strstreambuf&); <a name="l00108"></a>00108 <a name="l00109"></a>00109 <span class="comment">// Dynamic allocation, possibly using _M_alloc_fun and _M_free_fun.</span> <a name="l00110"></a>00110 <span class="keywordtype">char</span>* _M_alloc(<span class="keywordtype">size_t</span>); <a name="l00111"></a>00111 <span class="keywordtype">void</span> _M_free(<span class="keywordtype">char</span>*); <a name="l00112"></a>00112 <a name="l00113"></a>00113 <span class="comment">// Helper function used in constructors.</span> <a name="l00114"></a>00114 <span class="keywordtype">void</span> _M_setup(<span class="keywordtype">char</span>* __get, <span class="keywordtype">char</span>* __put, <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a> __n) throw (); <a name="l00115"></a>00115 <a name="l00116"></a>00116 private: <a name="l00117"></a>00117 <span class="comment">// Data members.</span> <a name="l00118"></a>00118 <span class="keywordtype">void</span>* (*_M_alloc_fun)(<span class="keywordtype">size_t</span>); <a name="l00119"></a>00119 <span class="keywordtype">void</span> (*_M_free_fun)(<span class="keywordtype">void</span>*); <a name="l00120"></a>00120 <a name="l00121"></a>00121 <span class="keywordtype">bool</span> _M_dynamic : 1; <a name="l00122"></a>00122 <span class="keywordtype">bool</span> _M_frozen : 1; <a name="l00123"></a>00123 <span class="keywordtype">bool</span> _M_constant : 1; <a name="l00124"></a>00124 }; <a name="l00125"></a>00125 <a name="l00126"></a>00126 <span class="comment">// Class istrstream, an istream that manages a strstreambuf.</span> <a name="l00127"></a>00127 class istrstream : public basic_istream<<span class="keywordtype">char</span>> <a name="l00128"></a>00128 { <a name="l00129"></a>00129 <span class="keyword">public</span>: <a name="l00130"></a>00130 <span class="keyword">explicit</span> istrstream(<span class="keywordtype">char</span>*); <a name="l00131"></a>00131 <span class="keyword">explicit</span> istrstream(<span class="keyword">const</span> <span class="keywordtype">char</span>*); <a name="l00132"></a>00132 istrstream(<span class="keywordtype">char</span>* , <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a>); <a name="l00133"></a>00133 istrstream(<span class="keyword">const</span> <span class="keywordtype">char</span>*, <a class="code" href="a01137.html#a05eef5582eb5de62b76db4916f7adb84" title="Integral type for I/O operation counts and buffer sizes.">streamsize</a>); <a name="l00134"></a>00134 <span class="keyword">virtual</span> ~istrstream(); <a name="l00135"></a>00135 <a name="l00136"></a>00136 _GLIBCXX_CONST strstreambuf* rdbuf() <span class="keyword">const</span> throw (); <a name="l00137"></a>00137 <span class="keywordtype">char</span>* str() throw (); <a name="l00138"></a>00138 <a name="l00139"></a>00139 private: <a name="l00140"></a>00140 strstreambuf _M_buf; <a name="l00141"></a>00141 }; <a name="l00142"></a>00142 <a name="l00143"></a>00143 <span class="comment">// Class ostrstream</span> <a name="l00144"></a>00144 class ostrstream : public basic_ostream<<span class="keywordtype">char</span>> <a name="l00145"></a>00145 { <a name="l00146"></a>00146 <span class="keyword">public</span>: <a name="l00147"></a>00147 ostrstream(); <a name="l00148"></a>00148 ostrstream(<span class="keywordtype">char</span>*, <span class="keywordtype">int</span>, <a class="code" href="a00528.html#aa7e2408680d83e0bac8979774aeecdad" title="This is a bitmask type.">ios_base::openmode</a> = <a class="code" href="a00528.html#a7187e216e5d16ec820ea1791002f85e0" title="Open for output. Default for ofstream and fstream.">ios_base::out</a>); <a name="l00149"></a>00149 <span class="keyword">virtual</span> ~ostrstream(); <a name="l00150"></a>00150 <a name="l00151"></a>00151 _GLIBCXX_CONST strstreambuf* rdbuf() <span class="keyword">const</span> throw (); <a name="l00152"></a>00152 <span class="keywordtype">void</span> freeze(<span class="keywordtype">bool</span> = true) throw(); <a name="l00153"></a>00153 <span class="keywordtype">char</span>* str() throw (); <a name="l00154"></a>00154 _GLIBCXX_PURE <span class="keywordtype">int</span> pcount() const throw (); <a name="l00155"></a>00155 <a name="l00156"></a>00156 private: <a name="l00157"></a>00157 strstreambuf _M_buf; <a name="l00158"></a>00158 }; <a name="l00159"></a>00159 <a name="l00160"></a>00160 <span class="comment">// Class strstream</span> <a name="l00161"></a>00161 class strstream : public basic_iostream<<span class="keywordtype">char</span>> <a name="l00162"></a>00162 { <a name="l00163"></a>00163 <span class="keyword">public</span>: <a name="l00164"></a>00164 <span class="keyword">typedef</span> <span class="keywordtype">char</span> <a class="code" href="a00252.html#a38ad1721a50a96c7d37d51a3f858a0cf">char_type</a>; <a name="l00165"></a>00165 <span class="keyword">typedef</span> char_traits<char>::int_type <a class="code" href="a00252.html#a1c1565d5b66e703de4d9a8aef4957a8b">int_type</a>; <a name="l00166"></a>00166 <span class="keyword">typedef</span> char_traits<char>::pos_type <a class="code" href="a00252.html#a5bc758d8b84fa134386d3ab683b880aa">pos_type</a>; <a name="l00167"></a>00167 <span class="keyword">typedef</span> char_traits<char>::off_type <a class="code" href="a00252.html#ae0d813da6c3d39659299a6e7831ae265">off_type</a>; <a name="l00168"></a>00168 <a name="l00169"></a>00169 strstream(); <a name="l00170"></a>00170 strstream(<span class="keywordtype">char</span>*, <span class="keywordtype">int</span>, <a class="code" href="a00528.html#aa7e2408680d83e0bac8979774aeecdad" title="This is a bitmask type.">ios_base::openmode</a> = <a class="code" href="a00528.html#a652e2323949eea3d906e1c81bd8ce8f7" title="Open for input. Default for ifstream and fstream.">ios_base::in</a> | <a class="code" href="a00528.html#a7187e216e5d16ec820ea1791002f85e0" title="Open for output. Default for ofstream and fstream.">ios_base::out</a>); <a name="l00171"></a>00171 <span class="keyword">virtual</span> ~strstream(); <a name="l00172"></a>00172 <a name="l00173"></a>00173 _GLIBCXX_CONST strstreambuf* rdbuf() <span class="keyword">const</span> throw (); <a name="l00174"></a>00174 <span class="keywordtype">void</span> freeze(<span class="keywordtype">bool</span> = true) throw (); <a name="l00175"></a>00175 _GLIBCXX_PURE <span class="keywordtype">int</span> pcount() const throw (); <a name="l00176"></a>00176 <span class="keywordtype">char</span>* str() throw (); <a name="l00177"></a>00177 <a name="l00178"></a>00178 private: <a name="l00179"></a>00179 strstreambuf _M_buf; <a name="l00180"></a>00180 }; <a name="l00181"></a>00181 <a name="l00182"></a>00182 _GLIBCXX_END_NAMESPACE_VERSION <a name="l00183"></a>00183 } <span class="comment">// namespace</span> <a name="l00184"></a>00184 <a name="l00185"></a>00185 <span class="preprocessor">#endif</span> </pre></div></div> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="a01078.html">strstream</a> </li> <li class="footer">Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.4 </li> </ul> </div> </body> </html>