60 lines
1.6 KiB
C
Executable File
60 lines
1.6 KiB
C
Executable File
/*****************************************************************************
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*
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* This program is free software ; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* $Id: qsort.c 271 2005-08-09 08:31:35Z picard $
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*
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* The Core Pocket Media Player
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* Copyright (c) 2004-2005 Gabor Kovacs
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*
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****************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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// cheap fake bubble sort :)))
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#if defined(__GNUC__)
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#define alloca(size) __builtin_alloca(size)
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#else
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#include <malloc.h>
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#endif
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void qsort(void *const base, size_t num, size_t size,int (*cmp)(const void*, const void*))
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{
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if (num>1)
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{
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void* tmp = alloca(size);
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int changed;
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do
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{
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char* p = (char*)base;
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char* pe = p + num*size;
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changed = 0;
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for (p+=size;p!=pe;p+=size)
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if (cmp(p-size,p)>0)
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{
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memcpy(tmp,p,size);
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memcpy(p,p-size,size);
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memcpy(p-size,tmp,size);
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changed = 1;
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}
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}
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while (changed);
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}
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}
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