1 /* calloc() function that is glibc compatible. 2 This wrapper function is required at least on Tru64 UNIX 5.1 and mingw. 3 Copyright (C) 2004-2007, 2009-2021 Free Software Foundation, Inc. 4 5 This file is free software: you can redistribute it and/or modify 6 it under the terms of the GNU Lesser General Public License as 7 published by the Free Software Foundation; either version 2.1 of the 8 License, or (at your option) any later version. 9 10 This file is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public License 16 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 17 18 /* written by Jim Meyering and Bruno Haible */ 19 20 #include <config.h> 21 22 /* Specification. */ 23 #include <stdlib.h> 24 25 #include <errno.h> 26 27 #include "xalloc-oversized.h" 28 29 /* Call the system's calloc below. */ 30 #undef calloc 31 32 /* Allocate and zero-fill an NxS-byte block of memory from the heap, 33 even if N or S is zero. */ 34 35 void * 36 rpl_calloc (size_t n, size_t s) /* */ 37 { 38 if (n == 0 || s == 0) 39 n = s = 1; 40 41 if (xalloc_oversized (n, s)) 42 { 43 errno = ENOMEM; 44 return NULL; 45 } 46 47 void *result = calloc (n, s); 48 49 #if !HAVE_MALLOC_POSIX 50 if (result == NULL) 51 errno = ENOMEM; 52 #endif 53 54 return result; 55 }