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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 <stdlib.h>
/**
* This function is identical to `memalign`,
* except it can be freed with `free`.
*
* Variant of `malloc` that returns an address with a
* specified alignment.
*
* It is unspecified how the function works. This implemention
* will allocate a bit of extra memory and shift the returned
* pointer so that it is aligned.
*
* @etymology (Alig)ned memory (alloc)ation.
*
* @param boundary The alignment.
* @param size The number of bytes to allocated.
* @return Pointer to the beginning of the new allocation.
* If `size` is zero, this function will either return
* `NULL` (that is what this implement does) or return
* a unique pointer that can later be freed with `free`.
* `NULL` is returned on error, and `errno` is set to
* indicate the error.
*
* @throws ENOMEM The process cannot allocate more memory.
* @throws EINVAL If `boundary` is not a power of two.
*
* @since Always.
*/
void* aligned_alloc(size_t boundary, size_t size)
{
return memalign(boundary, size);
}
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