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689a146283
* tests/test-c-stack.c, tests/test-calloc-posix.c: * tests/test-dprintf-posix2.c, tests/test-explicit_bzero.c: * tests/test-fprintf-posix3.c, tests/test-free.c: * tests/test-malloc-posix.c, tests/test-memset_explicit.c: * tests/test-reallocarray.c, tests/test-sigsegv-catch-stackoverflow1.c: * tests/test-sigsegv-catch-stackoverflow2.c: Simplify now that gnulib-common.m4 supports GCC-like macros.
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/* Test of reallocarray function.
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Copyright (C) 2010-2026 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 <stdio.h>
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#include <stdint.h>
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#include "signature.h"
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SIGNATURE_CHECK (reallocarray, void *, (void *, size_t, size_t));
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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_reallocarray) (void *, size_t, size_t) = reallocarray;
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#undef reallocarray
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#define reallocarray my_reallocarray
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int
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main ()
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{
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#if defined __SANITIZE_ADDRESS__ \
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|| defined __FILC__
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/* Avoid a "filc safety error: attempt to allocate object that is too big" */
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fputs ("Skipping test: large allocations are unsupported\n", stderr);
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return 77;
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#else
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/* Check that reallocarray fails when requested to allocate a block
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of memory larger than PTRDIFF_MAX or SIZE_MAX bytes. */
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for (size_t n = 2; n != 0; n <<= 1)
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{
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void *p = NULL;
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if (PTRDIFF_MAX / n + 1 <= SIZE_MAX)
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{
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p = reallocarray (p, PTRDIFF_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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p = reallocarray (p, SIZE_MAX / n + 1, n);
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ASSERT (p == NULL);
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ASSERT (errno == ENOMEM
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|| errno == EOVERFLOW /* NetBSD */);
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/* Reallocarray should not crash with zero sizes. */
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p = reallocarray (p, 0, n);
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p = reallocarray (p, n, 0);
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free (p);
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}
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return test_exit_status;
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#endif
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}
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