From 29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:21:29 +0200 Subject: Adding upstream version 1:0.1.9998svn3589+dfsg. Signed-off-by: Daniel Baumann --- src/grep/gnulib-tests/test-realloc-gnu.c | 49 ++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 src/grep/gnulib-tests/test-realloc-gnu.c (limited to 'src/grep/gnulib-tests/test-realloc-gnu.c') diff --git a/src/grep/gnulib-tests/test-realloc-gnu.c b/src/grep/gnulib-tests/test-realloc-gnu.c new file mode 100644 index 0000000..6f98be0 --- /dev/null +++ b/src/grep/gnulib-tests/test-realloc-gnu.c @@ -0,0 +1,49 @@ +/* Test of realloc function. + Copyright (C) 2010-2021 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 . */ + +#include + +/* Specification. */ +#include + +#include +#include + +#include "macros.h" + +int +main (int argc, char **argv) +{ + /* Check that realloc (NULL, 0) is not a NULL pointer. */ + void *volatile p = realloc (NULL, 0); + ASSERT (p != NULL); + + /* Check that realloc (p, n) fails when p is non-null and n exceeds + PTRDIFF_MAX. */ + if (PTRDIFF_MAX < SIZE_MAX) + { + size_t one = argc != 12345; + p = realloc (p, PTRDIFF_MAX + one); + ASSERT (p == NULL); + /* Avoid a test failure due to glibc bug + . */ + if (!getenv ("MALLOC_CHECK_")) + ASSERT (errno == ENOMEM); + } + + free (p); + return 0; +} -- cgit v1.2.3