1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28 /* this test is used to check that a memory-leak in vfprintf was fixed.
29 * the initial code leaked heap memory each time a formatted double was printed
30 */
31 #include <stdio.h>
32
33 extern size_t dlmalloc_footprint();
34
main(void)35 int main(void)
36 {
37 size_t initial = dlmalloc_footprint();
38 size_t final;
39 char temp[64];
40 int n;
41
42 for (n = 0; n < 10000; n++)
43 snprintf( temp, sizeof(temp), "%g", n*0.647287623 );
44
45 final = dlmalloc_footprint();
46 /* vfprintf uses temporary heap blocks to do the formatting, so */
47 /* it's OK to have one page in there */
48 if (final <= 4096) {
49 printf( "OK: initial = %ld, final == %ld\n", (long)initial, (long)final );
50 return 0;
51 } else {
52 fprintf(stderr, "KO: initial == %ld, final == %ld\n", (long)initial, (long)final );
53 return 1;
54 }
55 }
56