Mercurial > libjeffpc
view mem_array.c @ 794:d018af7c979c
slab: make struct mem_cache private
Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
author | Josef 'Jeff' Sipek <jeffpc@josefsipek.net> |
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date | Sun, 15 Mar 2020 15:52:09 +0200 |
parents | 6f8be69c0d8e |
children |
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/* * Copyright (c) 2018 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <jeffpc/mem.h> #include <jeffpc/config.h> void *mem_reallocarray(void *ptr, size_t nelem, size_t size) { #ifdef JEFFPC_HAVE_REALLOCARRAY return reallocarray(ptr, nelem, size); #else /* TODO: check for overflow, return NULL & set errno to ENOMEM */ return realloc(ptr, nelem * size); #endif } void *mem_recallocarray(void *ptr, size_t old_nelem, size_t new_nelem, size_t size) { #ifdef JEFFPC_HAVE_RECALLOCARRAY return recallocarray(ptr, old_nelem, new_nelem, size); #else /* * TODO: check for overflow, return NULL & set errno to: * ENOMEM if new size overflows * EINVAL if old size overflows */ const size_t old_size = size * old_nelem; const size_t new_size = size * new_nelem; char *tmp; tmp = mem_reallocarray(ptr, new_nelem, size); if (tmp && (new_nelem > old_nelem)) memset(tmp + old_size, 0, new_size - old_size); return tmp; #endif }