59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/* Test of calloc function.
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Copyright (C) 2010-2025 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include <stdlib.h>
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#include <errno.h>
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#include <stdint.h>
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#include "macros.h"
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/* Work around clang bug
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<https://github.com/llvm/llvm-project/issues/114772>. */
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void *(*volatile my_calloc) (size_t, size_t) = calloc;
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#undef calloc
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#define calloc my_calloc
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int
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main ()
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{
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/* Check that calloc (0, 0) is not a NULL pointer. */
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{
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void *p = calloc (0, 0);
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ASSERT (p != NULL);
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free (p);
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}
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/* Check that calloc fails when requested to allocate a block of memory
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larger than PTRDIFF_MAX or SIZE_MAX bytes. */
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{
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for (size_t n = 2; n != 0; n <<= 1)
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{
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void *p = calloc (PTRDIFF_MAX / n + 1, n);
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ASSERT (p == NULL);
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ASSERT (errno == ENOMEM);
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p = calloc (SIZE_MAX / n + 1, n);
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ASSERT (p == NULL);
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ASSERT (errno == ENOMEM);
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}
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}
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return test_exit_status;
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}
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