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malloc/reallocarray.c
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Change the size of an allocated block. Copyright (C) 2017-2026 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library 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. The GNU C Library 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 the GNU C Library; see the file COPYING.LIB. If not, see <https://www.gnu.org/licenses/>. */ #include <errno.h> #include <stdlib.h> #include <malloc.h> void * __libc_reallocarray (void *optr, size_t nmemb, size_t elem_size) { size_t bytes; if (__builtin_mul_overflow (nmemb, elem_size, &bytes)) { __set_errno (ENOMEM); return NULL; } return realloc (optr, bytes); } libc_hidden_def (__libc_reallocarray) weak_alias (__libc_reallocarray, reallocarray)