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Diffstat (limited to 'libio/fstream.cc')
-rw-r--r-- | libio/fstream.cc | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/libio/fstream.cc b/libio/fstream.cc new file mode 100644 index 00000000000..8930e0b9271 --- /dev/null +++ b/libio/fstream.cc @@ -0,0 +1,110 @@ +/* This is part of libio/iostream, providing -*- C++ -*- input/output. +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 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). */ + +#ifdef __GNUG__ +#pragma implementation +#endif +#define _STREAM_COMPAT +extern "C" { +#include "libioP.h" +} +#include <fstream.h> + +inline void +fstreambase::__fb_init() +{ +#ifdef _IO_NEW_STREAMS +#if !_IO_UNIFIED_JUMPTABLES + /* Uses the _IO_file_jump jumptable, for eficiency. */ + __my_fb._jumps = &_IO_file_jumps; + __my_fb._vtable() = builtinbuf_vtable; +#endif + init (&__my_fb); +#else + init(filebuf::__new()); + _flags &= ~ios::dont_close; +#endif +} + +fstreambase::fstreambase() +{ + __fb_init (); +} + +fstreambase::fstreambase(int fd) +{ + __fb_init (); + _IO_file_attach(rdbuf(), fd); +} + +fstreambase::fstreambase(const char *name, int mode, int prot) +{ + __fb_init (); + if (!rdbuf()->open(name, mode, prot)) + set(ios::badbit); +} + +fstreambase::fstreambase(int fd, char *p, int l) +{ +#ifdef _IO_NEW_STREAMS + __fb_init (); +#else + init(filebuf::__new()); +#endif + _IO_file_attach(rdbuf(), fd); + _IO_file_setbuf(rdbuf(), p, l); +} + +void fstreambase::open(const char *name, int mode, int prot) +{ + clear(); + if (!rdbuf()->open(name, mode, prot)) + set(ios::badbit); +} + +void fstreambase::close() +{ + if (!rdbuf()->close()) + set(ios::failbit); +} + +void fstreambase::attach(int fd) +{ + if (!rdbuf()->attach(fd)) + set(ios::failbit); +} + +#if 0 +static int mode_to_sys(enum open_mode mode) +{ + return O_WRONLY; +} + +static char* fopen_cmd_arg(io_mode i) +{ + return "w"; +} +#endif |