From be8efac78d067c138ad8dda03df4336e73f94887 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Sat, 8 Jan 2022 11:51:07 +0100 Subject: New upstream version 1.0 --- tests/test-realloc-gnu.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 tests/test-realloc-gnu.c (limited to 'tests/test-realloc-gnu.c') diff --git a/tests/test-realloc-gnu.c b/tests/test-realloc-gnu.c new file mode 100644 index 0000000..d662d0c --- /dev/null +++ b/tests/test-realloc-gnu.c @@ -0,0 +1,49 @@ +/* Test of realloc function. + Copyright (C) 2010-2022 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