70 lines
2.5 KiB
C
70 lines
2.5 KiB
C
|
/**
|
||
|
|
* @file bsort.h
|
||
|
|
* @author Ambroz Bizjak <ambrop7@gmail.com>
|
||
|
|
*
|
||
|
|
* @section LICENSE
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. Neither the name of the author nor the
|
||
|
|
* names of its contributors may be used to endorse or promote products
|
||
|
|
* derived from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* @section DESCRIPTION
|
||
|
|
*
|
||
|
|
* Sorting functions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef BADVPN_MISC_BSORT_H
|
||
|
|
#define BADVPN_MISC_BSORT_H
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include <misc/debug.h>
|
||
|
|
#include <misc/balloc.h>
|
||
|
|
|
||
|
|
typedef int (*BSort_comparator) (const void *e1, const void *e2);
|
||
|
|
|
||
|
|
static void BInsertionSort (void *arr, size_t count, size_t esize, BSort_comparator compatator, void *temp);
|
||
|
|
|
||
|
|
void BInsertionSort (void *arr, size_t count, size_t esize, BSort_comparator compatator, void *temp)
|
||
|
|
{
|
||
|
|
ASSERT(esize > 0)
|
||
|
|
|
||
|
|
for (size_t i = 0; i < count; i++) {
|
||
|
|
size_t j = i;
|
||
|
|
while (j > 0) {
|
||
|
|
uint8_t *x = (uint8_t *)arr + (j - 1) * esize;
|
||
|
|
uint8_t *y = (uint8_t *)arr + j * esize;
|
||
|
|
int c = compatator(x, y);
|
||
|
|
if (c <= 0) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
memcpy(temp, x, esize);
|
||
|
|
memcpy(x, y, esize);
|
||
|
|
memcpy(y, temp, esize);
|
||
|
|
j--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|