1 // Backward-compat support -*- C++ -*- 2 3 // Copyright (C) 2001, 2002, 2004, 2005, 2009 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 #ifndef _GLIBCXX_STRSTREAM 44 #define _GLIBCXX_STRSTREAM 45 46 #include "backward_warning.h" 47 #include <iosfwd> 48 #include <ios> 49 #include <istream> 50 #include <ostream> 51 #include <string> 52 53 _GLIBCXX_BEGIN_NAMESPACE(std) 54 55 // Class strstreambuf, a streambuf class that manages an array of char. 56 // Note that this class is not a template. 57 class strstreambuf : public basic_streambuf<char, char_traits<char> > 58 { 59 public: 60 // Types. 61 typedef char_traits<char> _Traits; 62 typedef basic_streambuf<char, _Traits> _Base; 63 64 public: 65 // Constructor, destructor 66 explicit strstreambuf(streamsize __initial_capacity = 0); 67 strstreambuf(void* (*__alloc)(size_t), void (*__free)(void*)); 68 69 strstreambuf(char* __get, streamsize __n, char* __put = 0); 70 strstreambuf(signed char* __get, streamsize __n, signed char* __put = 0); 71 strstreambuf(unsigned char* __get, streamsize __n, unsigned char* __put=0); 72 73 strstreambuf(const char* __get, streamsize __n); 74 strstreambuf(const signed char* __get, streamsize __n); 75 strstreambuf(const unsigned char* __get, streamsize __n); 76 77 virtual ~strstreambuf(); 78 79 public: 80 void freeze(bool = true); 81 char* str(); 82 int pcount() const; 83 84 protected: 85 virtual int_type overflow(int_type __c = _Traits::eof()); 86 virtual int_type pbackfail(int_type __c = _Traits::eof()); 87 virtual int_type underflow(); 88 virtual _Base* setbuf(char* __buf, streamsize __n); 89 virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir, 90 ios_base::openmode __mode 91 = ios_base::in | ios_base::out); 92 virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode 93 = ios_base::in | ios_base::out); 94 95 private: 96 strstreambuf& 97 operator=(const strstreambuf&); 98 99 strstreambuf(const strstreambuf&); 100 101 // Dynamic allocation, possibly using _M_alloc_fun and _M_free_fun. 102 char* _M_alloc(size_t); 103 void _M_free(char*); 104 105 // Helper function used in constructors. 106 void _M_setup(char* __get, char* __put, streamsize __n); 107 108 private: 109 // Data members. 110 void* (*_M_alloc_fun)(size_t); 111 void (*_M_free_fun)(void*); 112 113 bool _M_dynamic : 1; 114 bool _M_frozen : 1; 115 bool _M_constant : 1; 116 }; 117 118 // Class istrstream, an istream that manages a strstreambuf. 119 class istrstream : public basic_istream<char> 120 { 121 public: 122 explicit istrstream(char*); 123 explicit istrstream(const char*); 124 istrstream(char* , streamsize); 125 istrstream(const char*, streamsize); 126 virtual ~istrstream(); 127 128 strstreambuf* rdbuf() const; 129 char* str(); 130 131 private: 132 strstreambuf _M_buf; 133 }; 134 135 // Class ostrstream 136 class ostrstream : public basic_ostream<char> 137 { 138 public: 139 ostrstream(); 140 ostrstream(char*, int, ios_base::openmode = ios_base::out); 141 virtual ~ostrstream(); 142 143 strstreambuf* rdbuf() const; 144 void freeze(bool = true); 145 char* str(); 146 int pcount() const; 147 148 private: 149 strstreambuf _M_buf; 150 }; 151 152 // Class strstream 153 class strstream : public basic_iostream<char> 154 { 155 public: 156 typedef char char_type; 157 typedef char_traits<char>::int_type int_type; 158 typedef char_traits<char>::pos_type pos_type; 159 typedef char_traits<char>::off_type off_type; 160 161 strstream(); 162 strstream(char*, int, ios_base::openmode = ios_base::in | ios_base::out); 163 virtual ~strstream(); 164 165 strstreambuf* rdbuf() const; 166 void freeze(bool = true); 167 int pcount() const; 168 char* str(); 169 170 private: 171 strstreambuf _M_buf; 172 }; 173 174 _GLIBCXX_END_NAMESPACE 175 176 #endif 177
