Merge branch 'master' of ssh://crater.dragonflybsd.org/repository/git/dragonfly
[dragonfly.git] / contrib / gcc-3.4 / libstdc++-v3 / include / backward / strstream
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1// Backward-compat support -*- C++ -*-
2
3// Copyright (C) 2001, 2002, 2004 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 2, 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// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING. If not, write to the Free
18// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
19// USA.
20
21// As a special exception, you may use this file as part of a free software
22// library without restriction. Specifically, if other files instantiate
23// templates or use macros or inline functions from this file, or you compile
24// this file and link it with other files to produce an executable, this
25// file does not by itself cause the resulting executable to be covered by
26// the GNU General Public License. This exception does not however
27// invalidate any other reasons why the executable file might be covered by
28// the GNU General Public License.
29
30/*
31 * Copyright (c) 1998
32 * Silicon Graphics Computer Systems, Inc.
33 *
34 * Permission to use, copy, modify, distribute and sell this software
35 * and its documentation for any purpose is hereby granted without fee,
36 * provided that the above copyright notice appear in all copies and
37 * that both that copyright notice and this permission notice appear
38 * in supporting documentation. Silicon Graphics makes no
39 * representations about the suitability of this software for any
40 * purpose. It is provided "as is" without express or implied warranty.
41 */
42
43// WARNING: The classes defined in this header are DEPRECATED. This
44// header is defined in section D.7.1 of the C++ standard, and it
45// MAY BE REMOVED in a future standard revision. You should use the
46// header <sstream> instead.
47
48#ifndef __SGI_STL_STRSTREAM
49#define __SGI_STL_STRSTREAM
50
51#include "backward_warning.h"
52#include <iosfwd>
53#include <ios>
54#include <istream>
55#include <ostream>
56#include <string>
57
58namespace std
59{
60 // Class strstreambuf, a streambuf class that manages an array of char.
61 // Note that this class is not a template.
62 class strstreambuf : public basic_streambuf<char, char_traits<char> >
63 {
64 public:
65 // Types.
66 typedef char_traits<char> _Traits;
67 typedef basic_streambuf<char, _Traits> _Base;
68
69 public:
70 // Constructor, destructor
71 explicit strstreambuf(streamsize __initial_capacity = 0);
72 strstreambuf(void* (*__alloc)(size_t), void (*__free)(void*));
73
74 strstreambuf(char* __get, streamsize __n, char* __put = 0);
75 strstreambuf(signed char* __get, streamsize __n, signed char* __put = 0);
76 strstreambuf(unsigned char* __get, streamsize __n, unsigned char* __put=0);
77
78 strstreambuf(const char* __get, streamsize __n);
79 strstreambuf(const signed char* __get, streamsize __n);
80 strstreambuf(const unsigned char* __get, streamsize __n);
81
82 virtual ~strstreambuf();
83
84 public:
85 void freeze(bool = true);
86 char* str();
87 int pcount() const;
88
89 protected:
90 virtual int_type overflow(int_type __c = _Traits::eof());
91 virtual int_type pbackfail(int_type __c = _Traits::eof());
92 virtual int_type underflow();
93 virtual _Base* setbuf(char* __buf, streamsize __n);
94 virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir,
95 ios_base::openmode __mode
96 = ios_base::in | ios_base::out);
97 virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode
98 = ios_base::in | ios_base::out);
99
100 private:
101 strstreambuf&
102 operator=(const strstreambuf&);
103
104 strstreambuf(const strstreambuf&);
105
106 // Dynamic allocation, possibly using _M_alloc_fun and _M_free_fun.
107 char* _M_alloc(size_t);
108 void _M_free(char*);
109
110 // Helper function used in constructors.
111 void _M_setup(char* __get, char* __put, streamsize __n);
112
113 private:
114 // Data members.
115 void* (*_M_alloc_fun)(size_t);
116 void (*_M_free_fun)(void*);
117
118 bool _M_dynamic : 1;
119 bool _M_frozen : 1;
120 bool _M_constant : 1;
121 };
122
123 // Class istrstream, an istream that manages a strstreambuf.
124 class istrstream : public basic_istream<char>
125 {
126 public:
127 explicit istrstream(char*);
128 explicit istrstream(const char*);
129 istrstream(char* , streamsize);
130 istrstream(const char*, streamsize);
131 virtual ~istrstream();
132
133 strstreambuf* rdbuf() const;
134 char* str();
135
136 private:
137 strstreambuf _M_buf;
138 };
139
140 // Class ostrstream
141 class ostrstream : public basic_ostream<char>
142 {
143 public:
144 ostrstream();
145 ostrstream(char*, int, ios_base::openmode = ios_base::out);
146 virtual ~ostrstream();
147
148 strstreambuf* rdbuf() const;
149 void freeze(bool = true);
150 char* str();
151 int pcount() const;
152
153 private:
154 strstreambuf _M_buf;
155 };
156
157 // Class strstream
158 class strstream : public basic_iostream<char>
159 {
160 public:
161 typedef char char_type;
162 typedef char_traits<char>::int_type int_type;
163 typedef char_traits<char>::pos_type pos_type;
164 typedef char_traits<char>::off_type off_type;
165
166 strstream();
167 strstream(char*, int, ios_base::openmode = ios_base::in | ios_base::out);
168 virtual ~strstream();
169
170 strstreambuf* rdbuf() const;
171 void freeze(bool = true);
172 int pcount() const;
173 char* str();
174
175 private:
176 strstreambuf _M_buf;
177 };
178} // namespace std
179#endif