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Diffstat (limited to 'tests/reallocarray.c')
-rw-r--r-- | tests/reallocarray.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tests/reallocarray.c b/tests/reallocarray.c new file mode 100644 index 0000000..bc4cba4 --- /dev/null +++ b/tests/reallocarray.c @@ -0,0 +1,39 @@ +/* reallocarray function that is glibc compatible. + + Copyright (C) 2017-2022 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 Darshit Shah */ + +#include <config.h> + +#include <stdlib.h> +#include <errno.h> + +#include "intprops.h" + +void * +reallocarray (void *ptr, size_t nmemb, size_t size) +{ + size_t nbytes; + if (INT_MULTIPLY_WRAPV (nmemb, size, &nbytes)) + { + errno = ENOMEM; + return NULL; + } + + /* Rely on the semantics of GNU realloc. */ + return realloc (ptr, nbytes); +} |