2 Copyright (C) 1994, 2000 Free Software Foundation
4 This file is part of the GNU IO Library. This library is free
5 software; you can redistribute it and/or modify it under the
6 terms of the GNU General Public License as published by the
7 Free Software Foundation; either version 2, or (at your option)
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this library; see the file COPYING. If not, write to the Free
17 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 As a special exception, if you link this library with files
20 compiled with a GNU compiler to produce an executable, this does not cause
21 the resulting executable to be covered by the GNU General Public License.
22 This exception does not however invalidate any other reasons why
23 the executable file might be covered by the GNU General Public License. */
26 /* This file provides definitions of _IO_stdin, _IO_stdout, and _IO_stderr
27 for C++ code. Compare stdfiles.c.
28 (The difference is that here the vtable field is set to
29 point to builtinbuf's vtable, so the objects are effectively
30 of class builtinbuf.) */
35 #if !defined(filebuf_vtable) && defined(__cplusplus)
37 extern char filebuf_vtable
[]
38 #if (!defined(__GXX_ABI_VERSION) || __GXX_ABI_VERSION < 100)
39 asm (_G_VTABLE_LABEL_PREFIX
40 #if _G_VTABLE_LABEL_HAS_LENGTH
45 asm ( "_ZTV7filebuf" );
46 #endif /* (!defined(__GXX_ABI_VERSION) || __GXX_ABI_VERSION < 100) */
48 #if _G_VTABLE_LABEL_HAS_LENGTH
49 #define filebuf_vtable _G_VTABLE_LABEL_PREFIX_ID##7filebuf
51 #define filebuf_vtable _G_VTABLE_LABEL_PREFIX_ID##filebuf
53 extern char filebuf_vtable
[];
54 #endif /* !__GNUC__ */
55 #endif /* !defined(filebuf_vtable) && defined(__cplusplus) */
58 #define STD_VTABLE (const struct _IO_jump_t *)filebuf_vtable
62 #define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
63 static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
64 struct _IO_FILE_plus NAME \
65 = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), STD_VTABLE}
67 #define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
68 struct _IO_FILE_plus NAME = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), STD_VTABLE}
71 DEF_STDFILE(_IO_stdin_
, 0, 0, _IO_NO_WRITES
);
72 DEF_STDFILE(_IO_stdout_
, 1, &_IO_stdin_
.file
, _IO_NO_READS
);
73 DEF_STDFILE(_IO_stderr_
, 2, &_IO_stdout_
.file
,
74 _IO_NO_READS
+_IO_UNBUFFERED
);
76 #ifdef _STDIO_USES_IOSTREAM
77 _IO_FILE
*_IO_list_all
= &_IO_stderr_
.file
;
78 #else /* !_STDIO_USES_IOSTREAM */
79 #include "stdiostream.h"
81 struct _IO_fake_stdiobuf
{
89 /* Define stdiobuf_vtable as a name for the virtual function table
90 of the stdiobuf class. */
91 #ifndef stdiobuf_vtable
93 extern struct _IO_jump_t stdiobuf_vtable
94 #if (!defined(__GXX_ABI_VERSION) || __GXX_ABI_VERSION < 100)
95 asm (_G_VTABLE_LABEL_PREFIX
96 #if _G_VTABLE_LABEL_HAS_LENGTH
101 asm ( "_ZTV15stdiobuf_vtable" );
102 #endif /* (!defined(__GXX_ABI_VERSION) || __GXX_ABI_VERSION < 100) */
103 #else /* !__GNUC__ */
104 #if _G_VTABLE_LABEL_HAS_LENGTH
105 #define stdiobuf_vtable _G_VTABLE_LABEL_PREFIX_ID##8stdiobuf
107 #define stdiobuf_vtable _G_VTABLE_LABEL_PREFIX_ID##stdiobuf
109 extern struct _IO_jump_t stdiobuf_vtable
;
110 #endif /* !__GNUC__ */
111 #endif /* !stdiobuf_vtable */
114 #define DEF_STDIOFILE(NAME, FD, FILE, FLAGS, CHAIN) \
115 static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
116 struct _IO_fake_stdiobuf NAME = \
117 {{{ _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+_IO_UNBUFFERED+FLAGS, \
118 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, FD, \
119 0, 0, 0, 0, { 0 }, _IO_stdfile_##FD##_lock},\
120 &stdiobuf_vtable}, FILE}
122 #define DEF_STDIOFILE(NAME, FD, FILE, FLAGS, CHAIN) \
123 struct _IO_fake_stdiobuf NAME = \
124 {{{ _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+_IO_UNBUFFERED+FLAGS, \
125 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, FD}, \
126 &stdiobuf_vtable}, FILE}
129 DEF_STDIOFILE(_IO_stdin_buf
, 0, stdin
, _IO_NO_WRITES
, &_IO_stderr_
.file
);
130 DEF_STDIOFILE(_IO_stdout_buf
, 1, stdout
, _IO_NO_READS
, &_IO_stdin_buf
.s
.file
);
131 DEF_STDIOFILE(_IO_stderr_buf
, 2, stderr
, _IO_NO_READS
, &_IO_stdout_buf
.s
.file
);
133 _IO_FILE
*_IO_list_all
= &_IO_stderr_buf
.s
.file
;
134 #endif /* !_STDIO_USES_IOSTREAM */