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-rw-r--r--malloc/tst-malloc-usable.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/malloc/tst-malloc-usable.c b/malloc/tst-malloc-usable.c
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+/* Ensure that malloc_usable_size returns the request size with
+ MALLOC_CHECK_ exported to a positive value.
+
+ Copyright (C) 2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <malloc.h>
+#include <string.h>
+#include <stdio.h>
+
+static int
+do_test (void)
+{
+ size_t usable_size;
+ void *p = malloc (7);
+ if (!p)
+ {
+ printf ("memory allocation failed\n");
+ return 1;
+ }
+
+ usable_size = malloc_usable_size (p);
+ if (usable_size != 7)
+ {
+ printf ("malloc_usable_size: expected 7 but got %zu\n", usable_size);
+ return 1;
+ }
+
+ memset (p, 0, usable_size);
+ free (p);
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"