mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-16 10:20:30 +00:00
114 lines
4.2 KiB
C++
114 lines
4.2 KiB
C++
/* This is part of libio/iostream, providing -*- C++ -*- input/output.
|
|
Copyright (C) 1993, 1999 Free Software Foundation
|
|
|
|
This file is part of the GNU IO Library. This library is free
|
|
software; you can redistribute it and/or modify it under the
|
|
terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this library; see the file COPYING. If not, write to the Free
|
|
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
As a special exception, if you link this library with files
|
|
compiled with a GNU compiler to produce an executable, this does not cause
|
|
the resulting executable to be covered by the GNU General Public License.
|
|
This exception does not however invalidate any other reasons why
|
|
the executable file might be covered by the GNU General Public License. */
|
|
|
|
/* Written by Per Bothner (bothner@cygnus.com). */
|
|
|
|
#ifndef __STRSTREAM_H
|
|
#define __STRSTREAM_H
|
|
#ifdef __GNUG__
|
|
#pragma interface
|
|
#endif
|
|
#include <iostream.h>
|
|
#include <strfile.h>
|
|
|
|
extern "C++" {
|
|
class strstreambuf : public streambuf
|
|
{
|
|
struct _IO_str_fields _s;
|
|
friend class istrstream;
|
|
|
|
void init_dynamic(_IO_alloc_type alloc, _IO_free_type free,
|
|
int initial_size = 0);
|
|
void init_static(char *ptr, int size, char *pstart);
|
|
void init_readonly(const char *ptr, int size);
|
|
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)(_IO_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_readonly(ptr, size); }
|
|
strstreambuf(const unsigned char *ptr, int size)
|
|
{ init_readonly((const char*)ptr, size); }
|
|
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_readonly((const char*)ptr, size); }
|
|
// Note: frozen() is always true if !_IO_STR_DYNAMIC(this).
|
|
int frozen() { return _flags & _IO_USER_BUF ? 1 : 0; }
|
|
void freeze(int n=1)
|
|
{ if (_IO_STR_DYNAMIC(this))
|
|
{ if (n) _flags |= _IO_USER_BUF; else _flags &= ~_IO_USER_BUF; } }
|
|
_IO_ssize_t pcount();
|
|
char *str();
|
|
virtual streampos seekoff(streamoff, _seek_dir, int mode=ios::in|ios::out);
|
|
};
|
|
|
|
class strstreambase : virtual public ios {
|
|
protected:
|
|
strstreambuf __my_sb;
|
|
public:
|
|
strstreambuf* rdbuf() { return &__my_sb; }
|
|
protected:
|
|
strstreambase() { init (&__my_sb); }
|
|
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){}
|
|
_IO_ssize_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() { }
|
|
strstream(char *cp, int n, int mode=ios::out) :strstreambase(cp,n,mode){}
|
|
_IO_ssize_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(); }
|
|
};
|
|
} // extern "C++"
|
|
|
|
#endif /*!__STRSTREAM_H*/
|