1 // Backward-compat support -*- C++ -*- 2 3 // Copyright (C) 2001, 2002, 2004, 2005, 2009, 2010, 2011 4 // Free Software Foundation, Inc. 5 // 6 // This file is part of the GNU ISO C++ Library. This library is free 7 // software; you can redistribute it and/or modify it under the 8 // terms of the GNU General Public License as published by the 9 // Free Software Foundation; either version 3, or (at your option) 10 // any later version. 11 12 // This library is distributed in the hope that it will be useful, 13 // but WITHOUT ANY WARRANTY; without even the implied warranty of 14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 // GNU General Public License for more details. 16 17 // Under Section 7 of GPL version 3, you are granted additional 18 // permissions described in the GCC Runtime Library Exception, version 19 // 3.1, as published by the Free Software Foundation. 20 21 // You should have received a copy of the GNU General Public License and 22 // a copy of the GCC Runtime Library Exception along with this program; 23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24 // <http://www.gnu.org/licenses/>. 25 26 /* 27 * Copyright (c) 1998 28 * Silicon Graphics Computer Systems, Inc. 29 * 30 * Permission to use, copy, modify, distribute and sell this software 31 * and its documentation for any purpose is hereby granted without fee, 32 * provided that the above copyright notice appear in all copies and 33 * that both that copyright notice and this permission notice appear 34 * in supporting documentation. Silicon Graphics makes no 35 * representations about the suitability of this software for any 36 * purpose. It is provided "as is" without express or implied warranty. 37 */ 38 39 // WARNING: The classes defined in this header are DEPRECATED. This 40 // header is defined in section D.7.1 of the C++ standard, and it 41 // MAY BE REMOVED in a future standard revision. One should use the 42 // header <sstream> instead. 43 44 /** @file backward/strstream 45 * This is an internal header file, included by other library headers. 46 * Do not attempt to use it directly. @headername{sstream} 47 */ 48 49 #ifndef _BACKWARD_STRSTREAM 50 #define _BACKWARD_STRSTREAM 51 52 #include "backward_warning.h" 53 #include <iosfwd> 54 #include <ios> 55 #include <istream> 56 #include <ostream> 57 #include <string> 58 59 namespace std _GLIBCXX_VISIBILITY(default) 60 { 61 _GLIBCXX_BEGIN_NAMESPACE_VERSION 62 63 // Class strstreambuf, a streambuf class that manages an array of char. 64 // Note that this class is not a template. 65 class strstreambuf : public basic_streambuf<char, char_traits<char> > 66 { 67 public: 68 // Types. 69 typedef char_traits<char> _Traits; 70 typedef basic_streambuf<char, _Traits> _Base; 71 72 public: 73 // Constructor, destructor 74 explicit strstreambuf(streamsize __initial_capacity = 0); 75 strstreambuf(void* (*__alloc)(size_t), void (*__free)(void*)); 76 77 strstreambuf(char* __get, streamsize __n, char* __put = 0) throw (); 78 strstreambuf(signed char* __get, streamsize __n, signed char* __put = 0) throw (); 79 strstreambuf(unsigned char* __get, streamsize __n, unsigned char* __put=0) throw (); 80 81 strstreambuf(const char* __get, streamsize __n) throw (); 82 strstreambuf(const signed char* __get, streamsize __n) throw (); 83 strstreambuf(const unsigned char* __get, streamsize __n) throw (); 84 85 virtual ~strstreambuf(); 86 87 public: 88 void freeze(bool = true) throw (); 89 char* str() throw (); 90 _GLIBCXX_PURE int pcount() const throw (); 91 92 protected: 93 virtual int_type overflow(int_type __c = _Traits::eof()); 94 virtual int_type pbackfail(int_type __c = _Traits::eof()); 95 virtual int_type underflow(); 96 virtual _Base* setbuf(char* __buf, streamsize __n); 97 virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir, 98 ios_base::openmode __mode 99 = ios_base::in | ios_base::out); 100 virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode 101 = ios_base::in | ios_base::out); 102 103 private: 104 strstreambuf& 105 operator=(const strstreambuf&); 106 107 strstreambuf(const strstreambuf&); 108 109 // Dynamic allocation, possibly using _M_alloc_fun and _M_free_fun. 110 char* _M_alloc(size_t); 111 void _M_free(char*); 112 113 // Helper function used in constructors. 114 void _M_setup(char* __get, char* __put, streamsize __n) throw (); 115 116 private: 117 // Data members. 118 void* (*_M_alloc_fun)(size_t); 119 void (*_M_free_fun)(void*); 120 121 bool _M_dynamic : 1; 122 bool _M_frozen : 1; 123 bool _M_constant : 1; 124 }; 125 126 // Class istrstream, an istream that manages a strstreambuf. 127 class istrstream : public basic_istream<char> 128 { 129 public: 130 explicit istrstream(char*); 131 explicit istrstream(const char*); 132 istrstream(char* , streamsize); 133 istrstream(const char*, streamsize); 134 virtual ~istrstream(); 135 136 _GLIBCXX_CONST strstreambuf* rdbuf() const throw (); 137 char* str() throw (); 138 139 private: 140 strstreambuf _M_buf; 141 }; 142 143 // Class ostrstream 144 class ostrstream : public basic_ostream<char> 145 { 146 public: 147 ostrstream(); 148 ostrstream(char*, int, ios_base::openmode = ios_base::out); 149 virtual ~ostrstream(); 150 151 _GLIBCXX_CONST strstreambuf* rdbuf() const throw (); 152 void freeze(bool = true) throw(); 153 char* str() throw (); 154 _GLIBCXX_PURE int pcount() const throw (); 155 156 private: 157 strstreambuf _M_buf; 158 }; 159 160 // Class strstream 161 class strstream : public basic_iostream<char> 162 { 163 public: 164 typedef char char_type; 165 typedef char_traits<char>::int_type int_type; 166 typedef char_traits<char>::pos_type pos_type; 167 typedef char_traits<char>::off_type off_type; 168 169 strstream(); 170 strstream(char*, int, ios_base::openmode = ios_base::in | ios_base::out); 171 virtual ~strstream(); 172 173 _GLIBCXX_CONST strstreambuf* rdbuf() const throw (); 174 void freeze(bool = true) throw (); 175 _GLIBCXX_PURE int pcount() const throw (); 176 char* str() throw (); 177 178 private: 179 strstreambuf _M_buf; 180 }; 181 182 _GLIBCXX_END_NAMESPACE_VERSION 183 } // namespace 184 185 #endif 186
