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// This is part of the iostream library, providing -*- C++ -*- input/output.
// Copyright (C) 1991 Per Bothner.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free
// Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#ifndef __STRSTREAM_H
#define __STRSTREAM_H
#ifdef __GNUG__
#pragma interface
#endif
#include <iostream.h>
class strstreambuf : public backupbuf {
_G_size_t _len; // The current length is max(_len, _pptr-_pbase).
typedef void *(*_alloc_type)(_G_size_t);
typedef void (*_free_type)(void*);
_alloc_type _allocate_buffer;
_free_type _free_buffer;
void init_dynamic(_alloc_type alloc, _free_type free,
int initial_size = 128);
void init_const() { xsetflags(_S_NO_WRITES); }
void init_static(char *ptr, int size, char *pstart);
protected:
virtual int overflow(int = EOF);
virtual int underflow();
virtual int pbackfail(int c);
public:
virtual ~strstreambuf();
strstreambuf() { init_dynamic(0, 0); }
strstreambuf(int initial_size) { init_dynamic(0, 0, initial_size); }
strstreambuf(void *(*alloc)(_G_size_t), void (*free)(void*))
{ init_dynamic(alloc, free); }
strstreambuf(char *ptr, int size, char *pstart = NULL)
{ init_static(ptr, size, pstart); }
strstreambuf(unsigned char *ptr, int size, unsigned char *pstart = NULL)
{ init_static((char*)ptr, size, (char*)pstart); }
strstreambuf(const char *ptr, int size)
{ init_static((char*)ptr, size, NULL); init_const(); }
strstreambuf(const unsigned char *ptr, int size)
{ init_static((char*)ptr, size, NULL); init_const(); }
#ifndef _G_BROKEN_SIGNED_CHAR
strstreambuf(signed char *ptr, int size, signed char *pstart = NULL)
{ init_static((char*)ptr, size, (char*)pstart); }
strstreambuf(const signed char *ptr, int size)
{ init_static((char*)ptr, size, NULL); init_const(); }
#endif
int frozen() { return _flags & _S_USER_BUF ? 1 : 0; }
void freeze(int n=1)
{ if (n) _flags |= _S_USER_BUF; else _flags &= ~_S_USER_BUF; }
_G_size_t pcount();
char *str();
virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
};
class strstreambase : virtual public ios {
public:
strstreambuf* rdbuf() { return (strstreambuf*)_strbuf; }
protected:
strstreambase() { }
strstreambase(char *cp, int n, int mode=ios::out);
};
class istrstream : public strstreambase, public istream {
public:
istrstream(const char*, int=0);
};
class ostrstream : public strstreambase, public ostream {
public:
ostrstream();
ostrstream(char *cp, int n, int mode=ios::out) :strstreambase(cp,n,mode){}
_G_size_t pcount() { return ((strstreambuf*)_strbuf)->pcount(); }
char *str() { return ((strstreambuf*)_strbuf)->str(); }
void freeze(int n = 1) { ((strstreambuf*)_strbuf)->freeze(n); }
int frozen() { return ((strstreambuf*)_strbuf)->frozen(); }
};
class strstream : public strstreambase, public iostream {
public:
strstream() : strstreambase() { init(new strstreambuf()); }
strstream(char *cp, int n, int mode=ios::out) :strstreambase(cp,n,mode){}
_G_size_t pcount() { return ((strstreambuf*)_strbuf)->pcount(); }
char *str() { return ((strstreambuf*)_strbuf)->str(); }
void freeze(int n = 1) { ((strstreambuf*)_strbuf)->freeze(n); }
int frozen() { return ((strstreambuf*)_strbuf)->frozen(); }
};
#endif /*!__STRSTREAM_H*/
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.