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Diffstat (limited to 'tests/calloc.c')
-rw-r--r-- | tests/calloc.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tests/calloc.c b/tests/calloc.c new file mode 100644 index 0000000..0a934b3 --- /dev/null +++ b/tests/calloc.c @@ -0,0 +1,55 @@ +/* calloc() function that is glibc compatible. + This wrapper function is required at least on Tru64 UNIX 5.1 and mingw. + Copyright (C) 2004-2007, 2009-2022 Free Software Foundation, Inc. + + This file 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. + + This file 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 this program. If not, see <https://www.gnu.org/licenses/>. */ + +/* written by Jim Meyering and Bruno Haible */ + +#include <config.h> + +/* Specification. */ +#include <stdlib.h> + +#include <errno.h> + +#include "xalloc-oversized.h" + +/* Call the system's calloc below. */ +#undef calloc + +/* Allocate and zero-fill an NxS-byte block of memory from the heap, + even if N or S is zero. */ + +void * +rpl_calloc (size_t n, size_t s) +{ + if (n == 0 || s == 0) + n = s = 1; + + if (xalloc_oversized (n, s)) + { + errno = ENOMEM; + return NULL; + } + + void *result = calloc (n, s); + +#if !HAVE_MALLOC_POSIX + if (result == NULL) + errno = ENOMEM; +#endif + + return result; +} |