view lib/freadseek.h @ 11224:5aa57cee93aa

avoid gcc 3.4.3 bug on long double NaN on Irix 6.5 * tests/nan.h (NaNl): Rewrite as function on Irix, to avoid compilation bug by using runtime conversion. * m4/isfinite.m4 (gl_ISFINITE): Likewise. * m4/isnanl.m4 (gl_FUNC_ISNANL): Likewise. * modules/ceill-tests (Files): Use nan.h. * modules/floorl-tests (Files): Likewise. * modules/frexpl-tests (Files): Likewise. * modules/isnanl-tests (Files): Likewise. * modules/ldexpl-tests (Files): Likewise. * modules/roundl-tests (Files): Likewise. * modules/truncl-tests (Files): Likewise. * tests/test-ceill.c (main): Use a working NaN. * tests/test-floorl.c (main): Likewise. * tests/test-frexpl.c (main): Likewise. * tests/test-isnan.c (test_long_double): Likewise. * tests/test-isnanl.h (main): Likewise. * tests/test-ldexpl.h (main): Likewise. * tests/test-roundl.h (main): Likewise. * tests/test-truncl.h (main): Likewise. See http://lists.gnu.org/archive/html/bug-gnulib/2009-02/msg00190.html. Signed-off-by: Eric Blake <ebb9@byu.net>
author Eric Blake <ebb9@byu.net>
date Thu, 26 Feb 2009 20:18:42 -0700
parents 923434ebe936
children b5e42ef33b49
line wrap: on
line source

/* Skipping input from a FILE stream.
   Copyright (C) 2007-2008 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 <stddef.h>
#include <stdio.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Assuming the stream STREAM is open for reading:

   Read and discard OFFSET bytes from STREAM.

   freadseek (STREAM, OFFSET) is the same as
   fseek (STREAM, OFFSET, SEEK_CUR), except that the latter does not work
   on non-seekable input streams (such as pipes).

   Upon success, return 0.
   Upon premature end of stream, return 0 (like fseek does).
   Upon error, set the error indicator in the stream and return EOF.

   STREAM must not be wide-character oriented.  */

extern int freadseek (FILE *stream, size_t offset);

#ifdef __cplusplus
}
#endif