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- /*
- Copyright (C) 1994 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. */
-
-
- /* This file provides definitions of _IO_stdin, _IO_stdout, and _IO_stderr
- for C++ code. Compare stdfiles.c.
- (The difference is that here the vtable field is set to
- point to builtinbuf's vtable, so the objects are effectively
- of class builtinbuf.) */
-
- #include "libioP.h"
- #include <stdio.h>
-
- #ifndef STD_VTABLE
- #define STD_VTABLE builtinbuf_vtable
- #endif
-
- #define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
- struct _IO_FILE_plus NAME = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), STD_VTABLE}
-
- DEF_STDFILE(_IO_stdin_, 0, 0, _IO_NO_WRITES);
- DEF_STDFILE(_IO_stdout_, 1, &_IO_stdin_.file, _IO_NO_READS);
- DEF_STDFILE(_IO_stderr_, 2, &_IO_stdout_.file,
- _IO_NO_READS+_IO_UNBUFFERED);
-
- #ifdef _STDIO_USES_IOSTREAM
- _IO_FILE *_IO_list_all = &_IO_stderr_.file;
- #else /* !_STDIO_USES_IOSTREAM */
- #include "stdiostream.h"
-
- struct _IO_fake_stdiobuf {
- _IO_FILE file;
- const void *vtable;
- FILE *stdio_file;
- };
-
- /* Define stdiobuf_vtable as a name for the virtual function table
- of the stdiobuf class. */
- #ifndef stdiobuf_vtable
- #ifdef __GNUC__
- extern char stdiobuf_vtable[]
- asm (_G_VTABLE_LABEL_PREFIX
- #if _G_VTABLE_LABEL_HAS_LENGTH
- "8"
- #endif
- "stdiobuf");
- #else /* !__GNUC__ */
- #if _G_VTABLE_LABEL_HAS_LENGTH
- #define stdiobuf_vtable _G_VTABLE_LABEL_PREFIX_ID##8stdiobuf
- #else
- #define stdiobuf_vtable _G_VTABLE_LABEL_PREFIX_ID##stdiobuf
- #endif
- extern char stdiobuf_vtable[];
- #endif /* !__GNUC__ */
- #endif /* !stdiobuf_vtable */
-
- #define DEF_STDIOFILE(NAME, FD, FILE, FLAGS, CHAIN) \
- struct _IO_fake_stdiobuf NAME = \
- {{ _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+_IO_UNBUFFERED+FLAGS, \
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, &_IO_streambuf_jumps, FD},\
- stdiobuf_vtable, FILE}
-
- DEF_STDIOFILE(_IO_stdin_buf, 0, stdin, _IO_NO_WRITES, &_IO_stderr_.file);
- DEF_STDIOFILE(_IO_stdout_buf, 1, stdout, _IO_NO_READS, &_IO_stdin_buf.file);
- DEF_STDIOFILE(_IO_stderr_buf, 2, stderr, _IO_NO_READS, &_IO_stdout_buf.file);
-
- _IO_FILE *_IO_list_all = &_IO_stderr_buf.file;
- #endif /* !_STDIO_USES_IOSTREAM */
-