Mercurial > gnulib
view tests/test-c-vasprintf.c @ 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 |
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/* Test of c_asprintf() and c_vasprintf() functions. Copyright (C) 2011-2019 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/>. */ #include <config.h> #include "c-vasprintf.h" #include <locale.h> #include <stdio.h> #include <string.h> #include "macros.h" static int my_c_asprintf (char **result, const char *format, ...) { va_list args; int ret; va_start (args, format); ret = c_vasprintf (result, format, args); va_end (args); return ret; } int main (int argc, char *argv[]) { /* configure should already have checked that the locale is supported. */ if (setlocale (LC_ALL, "") == NULL) return 1; /* Test behaviour of snprintf() as a "control group". (We should be running in a locale where ',' is the decimal point.) */ { char s[16]; snprintf (s, sizeof s, "%#.0f", 1.0); if (!strcmp (s, "1.")) { /* Skip the test, since we're not in a useful locale for testing. */ return 77; } ASSERT (!strcmp (s, "1,")); } /* Test behaviour of c_asprintf() and c_vasprintf(). They should always use '.' as the decimal point. */ { int retval; char *s; retval = c_asprintf (&s, "%#.0f", 1.0); ASSERT (s != NULL); ASSERT (!strcmp (s, "1.")); ASSERT (retval == 2); free (s); retval = my_c_asprintf (&s, "%#.0f", 1.0); ASSERT (s != NULL); ASSERT (!strcmp (s, "1.")); ASSERT (retval == 2); free (s); } return 0; }