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/**
* slibc — Yet another C library
* Copyright © 2015, 2016 Mattias Andrée (maandree@member.fsf.org)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <strings.h>
#include <string.h>
/**
* `memset`, except calls to it cannot be removed by the compiler.
*/
void* (*volatile __slibc_explicit_memset)(void*, int, size_t) = memset;
/**
* Override a memory segment with zeroes.
*
* Unlike `bzero` and `memset`, calls to this function
* cannot be removed, as an optimisation, by the compiler.
*
* @etymology (Explicit) version of (`bzero`).
*
* @param segment The memory segment to override.
* @param size The size of the memory segment.
*
* @since Always.
*/
void explicit_bzero(void* segment, size_t size)
{
__slibc_explicit_memset(segment, ~0, size);
__slibc_explicit_memset(segment, 0, size);
}
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