1 /*****************************************************************************
2 *
3 * Copyright (c) 2008-2010, CoreCodec, Inc.
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7 * modification, are permitted provided that the following conditions are met:
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9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * * Neither the name of CoreCodec, Inc. nor the
14 * names of its contributors may be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY CoreCodec, Inc. ``AS IS'' AND ANY
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28 ****************************************************************************/
29
30 #include "corec/corec.h"
31
32 // cheap fake bubble sort :)))
33
qsort(void * const base,size_t num,size_t size,int (* cmp)(const void *,const void *))34 void qsort(void *const base, size_t num, size_t size,int (*cmp)(const void*, const void*))
35 {
36 if (num>1)
37 {
38 void* tmp = alloca(size);
39 int changed;
40 do
41 {
42 char* p = (char*)base;
43 char* pe = p + num*size;
44 changed = 0;
45
46 for (p+=size;p!=pe;p+=size)
47 if (cmp(p-size,p)>0)
48 {
49 memcpy(tmp,p,size);
50 memcpy(p,p-size,size);
51 memcpy(p-size,tmp,size);
52 changed = 1;
53 }
54 }
55 while (changed);
56 }
57 }
58