Mercurial > hg > octave-nkf > gnulib-hg
annotate lib/freading.c @ 9280:a1f6fe4c68c1
Add support for QNX (untested).
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Wed, 03 Oct 2007 22:16:40 +0200 |
| parents | 1d4c80b053f0 |
| children | bbbbbf4cd1c5 |
| rev | line source |
|---|---|
| 8720 | 1 /* Retrieve information about a FILE stream. |
| 2 Copyright (C) 2007 Free Software Foundation, Inc. | |
| 3 | |
| 4 This program is free software; you can redistribute it and/or modify | |
| 5 it under the terms of the GNU General Public License as published by | |
| 6 the Free Software Foundation; either version 2, or (at your option) | |
| 7 any later version. | |
| 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 | |
| 14 You should have received a copy of the GNU General Public License along | |
| 15 with this program; if not, write to the Free Software Foundation, | |
| 16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
| 17 | |
| 18 #include <config.h> | |
| 19 | |
| 20 /* Specification. */ | |
| 21 #include "freading.h" | |
| 22 | |
| 23 /* Don't use glibc's __freading function, see | |
| 24 <http://sourceware.org/bugzilla/show_bug.cgi?id=4359> */ | |
| 25 #if !(HAVE___FREADING && !defined __GLIBC__) | |
| 26 | |
| 27 bool | |
| 28 freading (FILE *fp) | |
| 29 { | |
| 30 /* Most systems provide FILE as a struct and the necessary bitmask in | |
| 31 <stdio.h>, because they need it for implementing getc() and putc() as | |
| 32 fast macros. */ | |
| 33 #if defined _IO_ferror_unlocked /* GNU libc, BeOS */ | |
| 34 return ((fp->_flags & _IO_NO_WRITES) != 0 | |
| 8752 | 35 || ((fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) == 0 |
| 8720 | 36 && fp->_IO_read_base != NULL)); |
| 37 #elif defined __sferror /* FreeBSD, NetBSD, OpenBSD, MacOS X, Cygwin */ | |
| 38 return (fp->_flags & __SRD) != 0; | |
| 39 #elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, mingw */ | |
| 40 return (fp->_flag & _IOREAD) != 0; | |
|
8926
1d4c80b053f0
Add support for uClibc 0.9.29.
Bruno Haible <bruno@clisp.org>
parents:
8752
diff
changeset
|
41 #elif defined __UCLIBC__ /* uClibc */ |
|
1d4c80b053f0
Add support for uClibc 0.9.29.
Bruno Haible <bruno@clisp.org>
parents:
8752
diff
changeset
|
42 return (fp->__modeflags & (__FLAG_READONLY | __FLAG_READING)) != 0; |
|
9280
a1f6fe4c68c1
Add support for QNX (untested).
Bruno Haible <bruno@clisp.org>
parents:
8926
diff
changeset
|
43 #elif defined __QNX__ /* QNX */ |
|
a1f6fe4c68c1
Add support for QNX (untested).
Bruno Haible <bruno@clisp.org>
parents:
8926
diff
changeset
|
44 return ((fp->_Mode & _MOPENW) == 0 |
|
a1f6fe4c68c1
Add support for QNX (untested).
Bruno Haible <bruno@clisp.org>
parents:
8926
diff
changeset
|
45 || (fp->_Mode & _MREAD) != 0); |
| 8720 | 46 #else |
| 47 #error "Please port gnulib freading.c to your platform!" | |
| 48 #endif | |
| 49 } | |
| 50 | |
| 51 #endif |