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 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
