1 // Backward-compat support -*- C++ -*- 2 3 // Copyright (C) 2001-2013 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the 7 // terms of the GNU General Public License as published by the 8 // Free Software Foundation; either version 3, or (at your option) 9 // any later version. 10 11 // This library is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 16 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 /* 26 * Copyright (c) 1998 27 * Silicon Graphics Computer Systems, Inc. 28 * 29 * Permission to use, copy, modify, distribute and sell this software 30 * and its documentation for any purpose is hereby granted without fee, 31 * provided that the above copyright notice appear in all copies and 32 * that both that copyright notice and this permission notice appear 33 * in supporting documentation. Silicon Graphics makes no 34 * representations about the suitability of this software for any 35 * purpose. It is provided "as is" without express or implied warranty. 36 */ 37 38 // WARNING: The classes defined in this header are DEPRECATED. This 39 // header is defined in section D.7.1 of the C++ standard, and it 40 // MAY BE REMOVED in a future standard revision. One should use the 41 // header <sstream> instead. 42 43 /** @file backward/strstream 44 * This is an internal header file, included by other library headers. 45 * Do not attempt to use it directly. @headername{sstream} 46 */ 47 48 #ifndef _BACKWARD_STRSTREAM 49 #define _BACKWARD_STRSTREAM 50 51 #include "backward_warning.h" 52 #include <iosfwd> 53 #include <ios> 54 #include <istream> 55 #include <ostream> 56 #include <string> 57 58 namespace std _GLIBCXX_VISIBILITY(default) 59 { 60 _GLIBCXX_BEGIN_NAMESPACE_VERSION 61 62 // Class strstreambuf, a streambuf class that manages an array of char. 63 // Note that this class is not a template. 64 class strstreambuf : public basic_streambuf<char, char_traits<char> > 65 { 66 public: 67 // Types. 68 typedef char_traits<char> _Traits; 69 typedef basic_streambuf<char, _Traits> _Base; 70 71 public: 72 // Constructor, destructor 73 explicit strstreambuf(streamsize __initial_capacity = 0); 74 strstreambuf(void* (*__alloc)(size_t), void (*__free)(void*)); 75 76 strstreambuf(char* __get, streamsize __n, char* __put = 0) throw (); 77 strstreambuf(signed char* __get, streamsize __n, signed char* __put = 0) throw (); 78 strstreambuf(unsigned char* __get, streamsize __n, unsigned char* __put=0) throw (); 79 80 strstreambuf(const char* __get, streamsize __n) throw (); 81 strstreambuf(const signed char* __get, streamsize __n) throw (); 82 strstreambuf(const unsigned char* __get, streamsize __n) throw (); 83 84 virtual ~strstreambuf(); 85 86 public: 87 void freeze(bool = true) throw (); 88 char* str() throw (); 89 _GLIBCXX_PURE int pcount() const throw (); 90 91 protected: 92 virtual int_type overflow(int_type __c = _Traits::eof()); 93 virtual int_type pbackfail(int_type __c = _Traits::eof()); 94 virtual int_type underflow(); 95 virtual _Base* setbuf(char* __buf, streamsize __n); 96 virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir, 97 ios_base::openmode __mode 98 = ios_base::in | ios_base::out); 99 virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode 100 = ios_base::in | ios_base::out); 101 102 private: 103 strstreambuf& 104 operator=(const strstreambuf&); 105 106 strstreambuf(const strstreambuf&); 107 108 // Dynamic allocation, possibly using _M_alloc_fun and _M_free_fun. 109 char* _M_alloc(size_t); 110 void _M_free(char*); 111 112 // Helper function used in constructors. 113 void _M_setup(char* __get, char* __put, streamsize __n) throw (); 114 115 private: 116 // Data members. 117 void* (*_M_alloc_fun)(size_t); 118 void (*_M_free_fun)(void*); 119 120 bool _M_dynamic : 1; 121 bool _M_frozen : 1; 122 bool _M_constant : 1; 123 }; 124 125 // Class istrstream, an istream that manages a strstreambuf. 126 class istrstream : public basic_istream<char> 127 { 128 public: 129 explicit istrstream(char*); 130 explicit istrstream(const char*); 131 istrstream(char* , streamsize); 132 istrstream(const char*, streamsize); 133 virtual ~istrstream(); 134 135 _GLIBCXX_CONST strstreambuf* rdbuf() const throw (); 136 char* str() throw (); 137 138 private: 139 strstreambuf _M_buf; 140 }; 141 142 // Class ostrstream 143 class ostrstream : public basic_ostream<char> 144 { 145 public: 146 ostrstream(); 147 ostrstream(char*, int, ios_base::openmode = ios_base::out); 148 virtual ~ostrstream(); 149 150 _GLIBCXX_CONST strstreambuf* rdbuf() const throw (); 151 void freeze(bool = true) throw(); 152 char* str() throw (); 153 _GLIBCXX_PURE int pcount() const throw (); 154 155 private: 156 strstreambuf _M_buf; 157 }; 158 159 // Class strstream 160 class strstream : public basic_iostream<char> 161 { 162 public: 163 typedef char char_type; 164 typedef char_traits<char>::int_type int_type; 165 typedef char_traits<char>::pos_type pos_type; 166 typedef char_traits<char>::off_type off_type; 167 168 strstream(); 169 strstream(char*, int, ios_base::openmode = ios_base::in | ios_base::out); 170 virtual ~strstream(); 171 172 _GLIBCXX_CONST strstreambuf* rdbuf() const throw (); 173 void freeze(bool = true) throw (); 174 _GLIBCXX_PURE int pcount() const throw (); 175 char* str() throw (); 176 177 private: 178 strstreambuf _M_buf; 179 }; 180 181 _GLIBCXX_END_NAMESPACE_VERSION 182 } // namespace 183 184 #endif 185
