1,3 → 1,31 |
/* |
* Copyright (C) 2005 Sergey Bondari |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - 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. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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. |
*/ |
|
#include <mm/heap.h> |
#include <memstr.h> |
#include <sort.h> |
4,60 → 32,54 |
|
|
void qsort(void * data, count_t n, size_t e_size, int (* cmp) (void * a, void * b)) { |
if (n > 4) { |
int i = 0, j = n - 1; |
void * tmp = (void *) malloc(e_size); |
void * pivot = (void *) malloc(e_size); |
|
if (n > 4) { |
int i = 0, j = n - 1; |
void * tmp = (void *) malloc(e_size); |
void * pivot = (void *) malloc(e_size); |
memcpy(pivot, data, e_size); |
|
memcpy(pivot, data, e_size); |
while (1) { |
while ((cmp(data + i * e_size, pivot) < 0) && i < n) i++; |
while ((cmp(data + j * e_size, pivot) >=0) && j > 0) j--; |
if (i<j) { |
memcpy(tmp, data + i * e_size, e_size); |
memcpy(data + i * e_size, data + j * e_size, e_size); |
memcpy(data + j * e_size, tmp, e_size); |
} else { |
break; |
} |
} |
|
while (1) { |
while ((cmp(data + i * e_size, pivot) < 0) && i < n) i++; |
while ((cmp(data + j * e_size, pivot) >=0) && j > 0) j--; |
free(tmp); |
free(pivot); |
|
if (i<j) { |
memcpy(tmp, data + i * e_size, e_size); |
memcpy(data + i * e_size, data + j * e_size, e_size); |
memcpy(data + j * e_size, tmp, e_size); |
} else { |
break; |
} |
} |
|
free(tmp); |
free(pivot); |
|
qsort(data, j + 1, e_size, cmp); |
qsort(data + (j + 1) * e_size, n - j - 1, e_size, cmp); |
|
} else { |
bubblesort(data, n, e_size, cmp); |
} |
|
|
qsort(data, j + 1, e_size, cmp); |
qsort(data + (j + 1) * e_size, n - j - 1, e_size, cmp); |
} else { |
bubblesort(data, n, e_size, cmp); |
} |
} |
|
|
void bubblesort(void * data, count_t n, size_t e_size, int (* cmp) (void * a, void * b)) { |
bool done = false; |
void * p; |
void * slot = (void *) malloc(e_size); |
bool done = false; |
void * p; |
void * slot = (void *) malloc(e_size); |
|
while (!done) { |
done = true; |
for (p = data; p < data + e_size * (n - 1); p = p + e_size) { |
if (cmp(p, p + e_size) == 1) { |
memcpy(slot, p, e_size); |
memcpy(p, p + e_size, e_size); |
memcpy(p + e_size, slot, e_size); |
done = false; |
} |
} |
|
} |
|
free(slot); |
while (!done) { |
done = true; |
for (p = data; p < data + e_size * (n - 1); p = p + e_size) { |
if (cmp(p, p + e_size) == 1) { |
memcpy(slot, p, e_size); |
memcpy(p, p + e_size, e_size); |
memcpy(p + e_size, slot, e_size); |
done = false; |
} |
} |
} |
|
free(slot); |
} |
|
/* |
64,18 → 86,18 |
* Comparator returns 1 if a > b, 0 if a == b, -1 if a < b |
*/ |
int int_cmp(void * a, void * b) { |
return (* (int *) a > * (int*)b) ? 1 : (*(int *)a < * (int *)b) ? -1 : 0; |
return (* (int *) a > * (int*)b) ? 1 : (*(int *)a < * (int *)b) ? -1 : 0; |
} |
|
int __u8_cmp(void * a, void * b) { |
return (* (__u8 *) a > * (__u8 *)b) ? 1 : (*(__u8 *)a < * (__u8 *)b) ? -1 : 0; |
return (* (__u8 *) a > * (__u8 *)b) ? 1 : (*(__u8 *)a < * (__u8 *)b) ? -1 : 0; |
} |
|
int __u16_cmp(void * a, void * b) { |
return (* (__u16 *) a > * (__u16 *)b) ? 1 : (*(__u16 *)a < * (__u16 *)b) ? -1 : 0; |
return (* (__u16 *) a > * (__u16 *)b) ? 1 : (*(__u16 *)a < * (__u16 *)b) ? -1 : 0; |
} |
|
int __u32_cmp(void * a, void * b) { |
return (* (__u32 *) a > * (__u32 *)b) ? 1 : (*(__u32 *)a < * (__u32 *)b) ? -1 : 0; |
return (* (__u32 *) a > * (__u32 *)b) ? 1 : (*(__u32 *)a < * (__u32 *)b) ? -1 : 0; |
} |
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