| 1 | /* Ensure that malloc_usable_size returns the request size with |
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| 2 | MALLOC_CHECK_ exported to a positive value. |
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| 3 | |
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| 4 | Copyright (C) 2012-2022 Free Software Foundation, Inc. |
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| 5 | Copyright The GNU Toolchain Authors. |
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| 6 | This file is part of the GNU C Library. |
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| 7 | |
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| 8 | The GNU C Library is free software; you can redistribute it and/or |
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| 9 | modify it under the terms of the GNU Lesser General Public |
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| 10 | License as published by the Free Software Foundation; either |
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| 11 | version 2.1 of the License, or (at your option) any later version. |
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| 12 | |
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| 13 | The GNU C Library is distributed in the hope that it will be useful, |
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | Lesser General Public License for more details. |
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| 17 | |
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| 18 | You should have received a copy of the GNU Lesser General Public |
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| 19 | License along with the GNU C Library; if not, see |
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| 20 | <https://www.gnu.org/licenses/>. */ |
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| 21 | |
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| 22 | #include <malloc.h> |
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| 23 | #include <string.h> |
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| 24 | #include <stdio.h> |
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| 25 | #include <support/support.h> |
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| 26 | #include <support/check.h> |
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| 27 | |
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| 28 | static int |
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| 29 | do_test (void) |
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| 30 | { |
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| 31 | size_t usable_size; |
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| 32 | void *p = malloc (size: 7); |
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| 33 | |
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| 34 | TEST_VERIFY_EXIT (p != NULL); |
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| 35 | usable_size = malloc_usable_size (ptr: p); |
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| 36 | TEST_COMPARE (usable_size, 7); |
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| 37 | memset (p, 0, usable_size); |
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| 38 | free (ptr: p); |
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| 39 | |
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| 40 | TEST_COMPARE (malloc_usable_size (NULL), 0); |
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| 41 | |
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| 42 | return 0; |
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| 43 | } |
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| 44 | |
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| 45 | #include "support/test-driver.c" |
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| 46 | |
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