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- /*
- Copyright (C) 1993 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 GNU CC; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, 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. */
-
- #ifdef __GNUC__
- #pragma implementation
- #endif
-
- #include "builtinbuf.h"
- #include "iostreamP.h"
-
- int builtinbuf::overflow(int ch) { return (*_jumps->__overflow)(this, ch); }
-
- int builtinbuf::underflow() { return (*_jumps->__underflow)(this); }
-
- streamsize builtinbuf::xsgetn(char* buf, streamsize n)
- { return (*_jumps->__xsgetn)(this, buf, n); }
-
- streamsize builtinbuf::xsputn(const char* buf, streamsize n)
- { return _jumps->__xsputn (this, buf, n); }
-
- int builtinbuf::doallocate() { return _jumps->__doallocate(this); }
-
- builtinbuf::~builtinbuf() { _jumps->__finish(this); }
-
- int builtinbuf::sync() { return _jumps->__sync(this); }
-
- streambuf* builtinbuf::setbuf(char *buf, int n)
- { return _jumps->__setbuf (this, buf, n) == 0 ? this : NULL; }
-
- streampos builtinbuf::seekoff(streamoff off, _seek_dir dir, int mode)
- {
- return _jumps->__seekoff (this, off, convert_to_seekflags(dir, mode));
- }
-
- streampos builtinbuf::seekpos(streampos pos, int mode)
- {
- int flags = 0;
- if (!(mode & ios::in))
- flags |= _IO_seek_not_in;
- if (!(mode & ios::out))
- flags |= _IO_seek_not_out;
- return _jumps->__seekpos(this, pos, (_IO_seekflags)flags);
- }
-
- int builtinbuf::pbackfail(int c)
- { return _jumps->__pbackfail(this, c); }
-
- streamsize builtinbuf::sys_read(char* buf, streamsize size)
- { return _jumps->__read(this, buf, size); }
-
- streampos builtinbuf::sys_seek(streamoff off, _seek_dir dir)
- { return _jumps->__seek(this, off, dir); }
-
- streamsize builtinbuf::sys_write(const char* buf, streamsize size)
- { return _jumps->__write(this, buf, size); }
-
- int builtinbuf::sys_stat(void* buf) // Actually, a (struct stat*)
- { return _jumps->__stat(this, buf); }
-
- int builtinbuf::sys_close()
- { return _jumps->__close(this); }
-
- const void *builtinbuf::vtable = NULL;
-
- void ios::_IO_fix_vtable() const
- {
- if (builtinbuf::vtable == NULL)
- {
- char _dummy[sizeof(builtinbuf)];
- ((builtinbuf*)_dummy)->builtinbuf::builtinbuf();
- builtinbuf::vtable = ((builtinbuf*)_dummy)->_vtable();
- }
- /* Cast away constness. Maybe we should use the new 'mutable' keyword. */
- ((ios*)this)->_strbuf->_vtable() = builtinbuf::vtable;
- }
-
- /* This method is TEMPORARY, for binary compatibility! */
- void ios::_IO_fix_vtable()
- {
- ((const ios*) this)->_IO_fix_vtable();
- }
-