185 lines
5.8 KiB
C++
185 lines
5.8 KiB
C++
// Backward-compat support -*- C++ -*-
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// Copyright (C) 2001-2013 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/*
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* Copyright (c) 1998
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* Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*/
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// WARNING: The classes defined in this header are DEPRECATED. This
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// header is defined in section D.7.1 of the C++ standard, and it
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// MAY BE REMOVED in a future standard revision. One should use the
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// header <sstream> instead.
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/** @file backward/strstream
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* This is an internal header file, included by other library headers.
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* Do not attempt to use it directly. @headername{sstream}
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*/
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#ifndef _BACKWARD_STRSTREAM
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#define _BACKWARD_STRSTREAM
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#include "backward_warning.h"
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#include <iosfwd>
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#include <ios>
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#include <istream>
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#include <ostream>
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#include <string>
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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_GLIBCXX_BEGIN_NAMESPACE_VERSION
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// Class strstreambuf, a streambuf class that manages an array of char.
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// Note that this class is not a template.
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class strstreambuf : public basic_streambuf<char, char_traits<char> >
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{
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public:
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// Types.
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typedef char_traits<char> _Traits;
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typedef basic_streambuf<char, _Traits> _Base;
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public:
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// Constructor, destructor
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explicit strstreambuf(streamsize __initial_capacity = 0);
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strstreambuf(void* (*__alloc)(size_t), void (*__free)(void*));
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strstreambuf(char* __get, streamsize __n, char* __put = 0) throw ();
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strstreambuf(signed char* __get, streamsize __n, signed char* __put = 0) throw ();
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strstreambuf(unsigned char* __get, streamsize __n, unsigned char* __put=0) throw ();
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strstreambuf(const char* __get, streamsize __n) throw ();
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strstreambuf(const signed char* __get, streamsize __n) throw ();
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strstreambuf(const unsigned char* __get, streamsize __n) throw ();
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virtual ~strstreambuf();
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public:
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void freeze(bool = true) throw ();
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char* str() throw ();
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_GLIBCXX_PURE int pcount() const throw ();
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protected:
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virtual int_type overflow(int_type __c = _Traits::eof());
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virtual int_type pbackfail(int_type __c = _Traits::eof());
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virtual int_type underflow();
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virtual _Base* setbuf(char* __buf, streamsize __n);
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virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir,
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ios_base::openmode __mode
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= ios_base::in | ios_base::out);
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virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode
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= ios_base::in | ios_base::out);
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private:
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strstreambuf&
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operator=(const strstreambuf&);
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strstreambuf(const strstreambuf&);
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// Dynamic allocation, possibly using _M_alloc_fun and _M_free_fun.
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char* _M_alloc(size_t);
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void _M_free(char*);
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// Helper function used in constructors.
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void _M_setup(char* __get, char* __put, streamsize __n) throw ();
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private:
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// Data members.
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void* (*_M_alloc_fun)(size_t);
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void (*_M_free_fun)(void*);
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bool _M_dynamic : 1;
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bool _M_frozen : 1;
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bool _M_constant : 1;
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};
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// Class istrstream, an istream that manages a strstreambuf.
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class istrstream : public basic_istream<char>
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{
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public:
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explicit istrstream(char*);
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explicit istrstream(const char*);
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istrstream(char* , streamsize);
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istrstream(const char*, streamsize);
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virtual ~istrstream();
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_GLIBCXX_CONST strstreambuf* rdbuf() const throw ();
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char* str() throw ();
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private:
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strstreambuf _M_buf;
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};
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// Class ostrstream
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class ostrstream : public basic_ostream<char>
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{
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public:
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ostrstream();
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ostrstream(char*, int, ios_base::openmode = ios_base::out);
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virtual ~ostrstream();
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_GLIBCXX_CONST strstreambuf* rdbuf() const throw ();
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void freeze(bool = true) throw();
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char* str() throw ();
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_GLIBCXX_PURE int pcount() const throw ();
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private:
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strstreambuf _M_buf;
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};
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// Class strstream
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class strstream : public basic_iostream<char>
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{
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public:
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typedef char char_type;
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typedef char_traits<char>::int_type int_type;
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typedef char_traits<char>::pos_type pos_type;
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typedef char_traits<char>::off_type off_type;
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strstream();
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strstream(char*, int, ios_base::openmode = ios_base::in | ios_base::out);
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virtual ~strstream();
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_GLIBCXX_CONST strstreambuf* rdbuf() const throw ();
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void freeze(bool = true) throw ();
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_GLIBCXX_PURE int pcount() const throw ();
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char* str() throw ();
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private:
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strstreambuf _M_buf;
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};
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_GLIBCXX_END_NAMESPACE_VERSION
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} // namespace
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#endif
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