/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved
#include <sys/types.h>
//#include <stdlib.h>
-static inline char *med3 __P((char *, char *, char *, int (*)()));
-static inline void swapfunc __P((char *, char *, int, int));
+__private_extern__
+void
+qsort(void *a, size_t n, size_t es, int (*cmp)(const void *, const void *));
+
+static inline char *med3(char *, char *, char *, int (*)(const void *, const void *));
+static inline void swapfunc(char *, char *, int, int);
#define min(a, b) (a) < (b) ? a : b
*/
#define swapcode(TYPE, parmi, parmj, n) { \
long i = (n) / sizeof (TYPE); \
- register TYPE *pi = (TYPE *) (parmi); \
- register TYPE *pj = (TYPE *) (parmj); \
+ TYPE *pi = (TYPE *) (parmi); \
+ TYPE *pj = (TYPE *) (parmj); \
do { \
- register TYPE t = *pi; \
+ TYPE t = *pi; \
*pi++ = *pj; \
*pj++ = t; \
} while (--i > 0); \
es % sizeof(long) ? 2 : es == sizeof(long)? 0 : 1;
static inline void
-swapfunc(a, b, n, swaptype)
- char *a, *b;
- int n, swaptype;
+swapfunc(char *a, char *b, int n, int swaptype)
{
if(swaptype <= 1)
swapcode(long, a, b, n)
#define vecswap(a, b, n) if ((n) > 0) swapfunc(a, b, n, swaptype)
static inline char *
-med3(a, b, c, cmp)
- char *a, *b, *c;
- int (*cmp)();
+med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *))
{
return cmp(a, b) < 0 ?
(cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a ))
__private_extern__
void
-qsort(a, n, es, cmp)
- void *a;
- size_t n, es;
- int (*cmp)();
+qsort(void *a, size_t n, size_t es, int (*cmp)(const void *, const void *))
{
char *pa, *pb, *pc, *pd, *pl, *pm, *pn;
- int d, r, swaptype, swap_cnt;
+ int d, swaptype, swap_cnt;
+ int r;
loop: SWAPINIT(a, es);
swap_cnt = 0;
if (n < 7) {
- for (pm = a + es; pm < (char *) a + n * es; pm += es)
+ for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es)
for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
pl -= es)
swap(pl, pl - es);
return;
}
- pm = a + (n / 2) * es;
+ pm = (char *)a + (n / 2) * es;
if (n > 7) {
pl = a;
- pn = a + (n - 1) * es;
+ pn = (char *)a + (n - 1) * es;
if (n > 40) {
d = (n / 8) * es;
pl = med3(pl, pl + d, pl + 2 * d, cmp);
pm = med3(pl, pm, pn, cmp);
}
swap(a, pm);
- pa = pb = a + es;
+ pa = pb = (char *)a + es;
- pc = pd = a + (n - 1) * es;
+ pc = pd = (char *)a + (n - 1) * es;
for (;;) {
while (pb <= pc && (r = cmp(pb, a)) <= 0) {
if (r == 0) {
pc -= es;
}
if (swap_cnt == 0) { /* Switch to insertion sort */
- for (pm = a + es; pm < (char *) a + n * es; pm += es)
+ for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es)
for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
pl -= es)
swap(pl, pl - es);
return;
}
- pn = a + n * es;
+ pn = (char *)a + n * es;
r = min(pa - (char *)a, pb - pa);
vecswap(a, pb - r, r);
- r = min(pd - pc, pn - pd - es);
+ r = min((size_t)(pd - pc), pn - pd - es);
vecswap(pb, pn - r, r);
- if ((r = pb - pa) > es)
+ if ((size_t)(r = pb - pa) > es)
qsort(a, r / es, es, cmp);
- if ((r = pd - pc) > es) {
+ if ((size_t)(r = pd - pc) > es) {
/* Iterate rather than recurse to save stack space */
a = pn - r;
n = r / es;
projects / apple / xnu.git / blobdiff