Mercurial > gnulib
annotate lib/fwritable.c @ 40231:9b3c79fdfe0b
strtod: fix clash with strtold
Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817).
* lib/strtod.c (compute_minus_zero, minus_zero):
Simplify by remving the macro / external variable,
and having just a function. User changed. This avoids
the need for an external variable that might clash.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Mon, 11 Mar 2019 16:40:29 -0700 |
parents | b06060465f09 |
children |
rev | line source |
---|---|
8689 | 1 /* Retrieve information about a FILE stream. |
40057
b06060465f09
maint: Run 'make update-copyright'
Paul Eggert <eggert@cs.ucla.edu>
parents:
19651
diff
changeset
|
2 Copyright (C) 2007-2019 Free Software Foundation, Inc. |
8689 | 3 |
9309
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
9280
diff
changeset
|
4 This program is free software: you can redistribute it and/or modify |
8689 | 5 it under the terms of the GNU General Public License as published by |
9309
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
9280
diff
changeset
|
6 the Free Software Foundation; either version 3 of the License, or |
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
9280
diff
changeset
|
7 (at your option) any later version. |
8689 | 8 |
9 This program is distributed in the hope that it will be useful, | |
10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 GNU General Public License for more details. | |
13 | |
9309
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
9280
diff
changeset
|
14 You should have received a copy of the GNU General Public License |
19190 | 15 along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
8689 | 16 |
17 #include <config.h> | |
18 | |
19 /* Specification. */ | |
20 #include "fwritable.h" | |
21 | |
9980
2c1ba629f5d5
New private include file lib/stdio-impl.h.
Bruno Haible <bruno@clisp.org>
parents:
9928
diff
changeset
|
22 #include "stdio-impl.h" |
2c1ba629f5d5
New private include file lib/stdio-impl.h.
Bruno Haible <bruno@clisp.org>
parents:
9928
diff
changeset
|
23 |
16345
7cf3cc0dcf46
stdioext: Fix last commit.
Bruno Haible <bruno@clisp.org>
parents:
16344
diff
changeset
|
24 #if defined EPLAN9 /* Plan9 */ |
7cf3cc0dcf46
stdioext: Fix last commit.
Bruno Haible <bruno@clisp.org>
parents:
16344
diff
changeset
|
25 # include <fcntl.h> |
7cf3cc0dcf46
stdioext: Fix last commit.
Bruno Haible <bruno@clisp.org>
parents:
16344
diff
changeset
|
26 #endif |
7cf3cc0dcf46
stdioext: Fix last commit.
Bruno Haible <bruno@clisp.org>
parents:
16344
diff
changeset
|
27 |
19651
f58f701d78de
stdioext: Fix compilation errors with newer Android headers.
Bruno Haible <bruno@clisp.org>
parents:
19557
diff
changeset
|
28 /* This file is not used on systems that have the __fwritable function, |
f58f701d78de
stdioext: Fix compilation errors with newer Android headers.
Bruno Haible <bruno@clisp.org>
parents:
19557
diff
changeset
|
29 namely glibc >= 2.2, Solaris >= 7, Android API >= 23, musl libc. */ |
f58f701d78de
stdioext: Fix compilation errors with newer Android headers.
Bruno Haible <bruno@clisp.org>
parents:
19557
diff
changeset
|
30 |
8689 | 31 bool |
32 fwritable (FILE *fp) | |
33 { | |
34 /* Most systems provide FILE as a struct and the necessary bitmask in | |
35 <stdio.h>, because they need it for implementing getc() and putc() as | |
36 fast macros. */ | |
19557
3511f4e8ea85
fflush: be more paranoid about libio.h change
Paul Eggert <eggert@cs.ucla.edu>
parents:
19550
diff
changeset
|
37 #if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 |
3511f4e8ea85
fflush: be more paranoid about libio.h change
Paul Eggert <eggert@cs.ucla.edu>
parents:
19550
diff
changeset
|
38 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
8689 | 39 return (fp->_flags & _IO_NO_WRITES) == 0; |
17902
4578584def8a
Fix FILE struct compatibility with Android API level >= 21
Kevin Cernekee <cernekee@google.com>
parents:
17848
diff
changeset
|
40 #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__ |
18655
c9e4105be915
stdioext: Port to Minix 3.2 and newer.
Bruno Haible <bruno@clisp.org>
parents:
18626
diff
changeset
|
41 /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */ |
9981
e3d6988a9347
Add tentative support for DragonFly BSD.
Bruno Haible <bruno@clisp.org>
parents:
9980
diff
changeset
|
42 return (fp_->_flags & (__SRW | __SWR)) != 0; |
9881
e21211210418
Port the extended stdio functions to emx+gcc.
Bruno Haible <bruno@clisp.org>
parents:
9876
diff
changeset
|
43 #elif defined __EMX__ /* emx+gcc */ |
e21211210418
Port the extended stdio functions to emx+gcc.
Bruno Haible <bruno@clisp.org>
parents:
9876
diff
changeset
|
44 return (fp->_flags & (_IORW | _IOWRT)) != 0; |
15485
20a2699b8a90
stdioext: Add support for Minix.
Bruno Haible <bruno@clisp.org>
parents:
14380
diff
changeset
|
45 #elif defined __minix /* Minix */ |
20a2699b8a90
stdioext: Add support for Minix.
Bruno Haible <bruno@clisp.org>
parents:
14380
diff
changeset
|
46 return (fp->_flags & _IOWRITE) != 0; |
18974
6862081ffc74
stdioext: Port to OpenVMS.
John Malmberg <wb8tyw@qsl.net>
parents:
18655
diff
changeset
|
47 #elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, MSVC, NonStop Kernel, OpenVMS */ |
18552
1c1353d294b3
stdioext: Port to native Windows with MSVC.
Bruno Haible <bruno@clisp.org>
parents:
18189
diff
changeset
|
48 return (fp_->_flag & (_IORW | _IOWRT)) != 0; |
9280
a1f6fe4c68c1
Add support for QNX (untested).
Bruno Haible <bruno@clisp.org>
parents:
8689
diff
changeset
|
49 #elif defined __QNX__ /* QNX */ |
9456 | 50 return (fp->_Mode & 0x2 /* _MOPENW */) != 0; |
11236
d4475bf2a2bf
Add tentative support for FreeMiNT.
Bruno Haible <bruno@clisp.org>
parents:
10780
diff
changeset
|
51 #elif defined __MINT__ /* Atari FreeMiNT */ |
d4475bf2a2bf
Add tentative support for FreeMiNT.
Bruno Haible <bruno@clisp.org>
parents:
10780
diff
changeset
|
52 return fp->__mode.__write; |
16344
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
53 #elif defined EPLAN9 /* Plan9 */ |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
54 int fd = fp->fd; |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
55 if (fd >= 0) |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
56 { |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
57 int flags = fcntl (fd, F_GETFL, NULL); |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
58 if (flags >= 0) |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
59 { |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
60 flags &= O_ACCMODE; |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
61 return (flags == O_WRONLY || flags == O_RDWR); |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
62 } |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
63 } |
ecfc57537d99
stdioext: Add tentative support for Plan9.
Bruno Haible <bruno@clisp.org>
parents:
16201
diff
changeset
|
64 return 0; |
8689 | 65 #else |
14380
5cee7a3cd6ca
maint: adjust cpp indentation for my modules, as well
Eric Blake <eblake@redhat.com>
parents:
14079
diff
changeset
|
66 # error "Please port gnulib fwritable.c to your platform! Look at the definition of fopen, fdopen on your system, then report this to bug-gnulib." |
8689 | 67 #endif |
68 } |