Mercurial > gnulib
view tests/test-vasnprintf-posix2.c @ 40212:8da9577294da
unistr/*, uniconv/*: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size.
* lib/unistr/u-cpy-alloc.h (FUNC): Likewise.
* lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise.
* lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 00:01:47 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
/* Test of POSIX compatible vasnprintf() and asnprintf() functions. Copyright (C) 2007-2019 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/>. */ /* Written by Bruno Haible <bruno@clisp.org>, 2007. */ #include <config.h> #include "vasnprintf.h" #include <locale.h> #include <stdlib.h> #include <string.h> #include "macros.h" int main (int argc, char *argv[]) { /* configure should already have checked that the locale is supported. */ if (setlocale (LC_ALL, "") == NULL) return 1; /* Test that a locale dependent decimal point is used. */ { size_t length; char *result = asnprintf (NULL, &length, "%.1a", 1.0); ASSERT (result != NULL); ASSERT (strcmp (result, "0x1,0p+0") == 0 || strcmp (result, "0x2,0p-1") == 0 || strcmp (result, "0x4,0p-2") == 0 || strcmp (result, "0x8,0p-3") == 0); ASSERT (length == strlen (result)); free (result); } /* Test that a locale dependent decimal point is used. */ { size_t length; char *result = asnprintf (NULL, &length, "%.1La", 1.0L); ASSERT (result != NULL); ASSERT (strcmp (result, "0x1,0p+0") == 0 || strcmp (result, "0x2,0p-1") == 0 || strcmp (result, "0x4,0p-2") == 0 || strcmp (result, "0x8,0p-3") == 0); ASSERT (length == strlen (result)); free (result); } return 0; }