Mercurial > hg > octave-lojdl > gnulib-hg
view lib/ftell.c @ 17149:a49df7b88261
errno: port to LynxOS 178 2.2.2
Problem reported by Joel Brobecker in
<http://lists.gnu.org/archive/html/bug-gnulib/2012-10/msg00088.html>.
* doc/posix-headers/errno.texi (errno.h): Document this.
* lib/errno.in.h (EILSEQ, GNULIB_defined_EILSEQ) [!EILSEQ]: New macros.
* lib/strerror-override.c, lib/strerror-override.h (strerror_override):
Supply a string for EILSEQ.
* m4/errno_h.m4 (gl_HEADER_ERRNO_H): Check for EILSEQ.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Thu, 01 Nov 2012 15:29:14 -0700 |
parents | 8250f2777afc |
children | e542fd46ad6f |
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/* An ftell() function that works around platform bugs. Copyright (C) 2007-2012 Free Software Foundation, Inc. This program 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 3 of the License, or (at your option) any later version. This program 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 program. If not, see <http://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include <stdio.h> #include <errno.h> #include <limits.h> long ftell (FILE *fp) { /* Use the replacement ftello function with all its workarounds. */ off_t offset = ftello (fp); if (LONG_MIN <= offset && offset <= LONG_MAX) return /* (long) */ offset; else { errno = EOVERFLOW; return -1; } }