Mercurial > gnulib
view tests/test-utimens-common.h @ 40214:452ab00796c7
Fix undefined behaviour.
* lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to
'unsigned int', to avoid shift operations on 'int'.
* lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size.
* tests/test-count-leading-zeros.c (main): Use a random number that has
as many bits as TYPE, not only 2*15 or 2*31 bits.
* tests/test-count-trailing-zeros.c (main): Likewise.
* tests/test-count-one-bits.c (main): Likewise.
* tests/test-memmem.c: Don't include "null-ptr.h".
(main): Use zerosize_ptr() instead of null_ptr().
* modules/memmem-tests (Files): Remove tests/null-ptr.h.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 20:32:25 +0100 |
parents | b06060465f09 |
children | 5a52ef2d4772 |
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/* Test of file timestamp modification functions. Copyright (C) 2009-2019 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 <https://www.gnu.org/licenses/>. */ /* This file defines some prerequisites useful to utime-related tests. */ #ifndef GL_TEST_UTIMENS_COMMON # define GL_TEST_UTIMENS_COMMON # include <fcntl.h> # include <errno.h> # include <string.h> # include <sys/stat.h> # include <unistd.h> /* Gnulib modules. */ # include "stat-time.h" # include "timespec.h" # include "utimecmp.h" /* Gnulib test header. */ # include "nap.h" enum { BILLION = 1000 * 1000 * 1000, Y2K = 946684800, /* Jan 1, 2000, in seconds since epoch. */ /* Bogus positive and negative tv_nsec values closest to valid range, but without colliding with UTIME_NOW or UTIME_OMIT. */ UTIME_BOGUS_POS = BILLION + ((UTIME_NOW == BILLION || UTIME_OMIT == BILLION) ? (1 + (UTIME_NOW == BILLION + 1) + (UTIME_OMIT == BILLION + 1)) : 0), UTIME_BOGUS_NEG = -1 - ((UTIME_NOW == -1 || UTIME_OMIT == -1) ? (1 + (UTIME_NOW == -2) + (UTIME_OMIT == -2)) : 0) }; # if defined _WIN32 && !defined __CYGWIN__ /* Skip ctime tests on native Windows, since it is either a copy of mtime or birth time (depending on the file system), rather than a properly tracked change time. See <https://msdn.microsoft.com/en-us/library/14h5k7ff(VS.80).aspx>. */ # define check_ctime 0 # else # define check_ctime 1 # endif /* Compare two st_ctime values. Return -1, 0 or 1, respectively when A's st_ctime is smaller than, equal to or greater than B's. */ static int ctime_compare (struct stat const *a, struct stat const *b) { if (a->st_ctime < b->st_ctime) return -1; else if (b->st_ctime < a->st_ctime) return 1; else if (get_stat_ctime_ns (a) < get_stat_ctime_ns (b)) return -1; else if (get_stat_ctime_ns (b) < get_stat_ctime_ns (a)) return 1; else return 0; } #endif /* GL_TEST_UTIMENS_COMMON */