1 /* realloc() function that is glibc compatible. 2 Copyright (C) 1997, 2003, 2004 Free Software Foundation, Inc. 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 2, or (at your option) 7 any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program; if not, write to the Free Software Foundation, 16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 17 18 /* written by Jim Meyering */ 19 20 #ifdef HAVE_CONFIG_H 21 # include <config.h> 22 #endif 23 #undef realloc 24 25 #include <stdlib.h> 26 27 /* Change the size of an allocated block of memory P to N bytes, 28 with error checking. If N is zero, change it to 1. If P is NULL, 29 use malloc. */ 30 31 void * 32 rpl_realloc (void *p, size_t n) 33 { 34 if (n == 0) 35 { 36 n = 1; 37 38 /* In theory realloc might fail, so don't rely on it to free. */ 39 free (p); 40 p = NULL; 41 } 42 43 if (p == NULL) 44 return malloc (n); 45 return realloc (p, n); 46 } 47