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author | SVN Migration <svn@php.net> | 2003-02-27 17:43:39 +0000 |
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committer | SVN Migration <svn@php.net> | 2003-02-27 17:43:39 +0000 |
commit | 078bcec0997ad0e07b720c43cc9e6d0e046a75ab (patch) | |
tree | 36cb0f6be2ef078fe3374de8c087b93ecf82f812 /Zend/zend_qsort.c | |
parent | fd61f69077f6156ca71dde60ecfd9ed9765a02db (diff) | |
download | php-git-PHP-5.tar.gz |
This commit was manufactured by cvs2svn to create branch 'PHP_5'.PHP-5
Diffstat (limited to 'Zend/zend_qsort.c')
-rw-r--r-- | Zend/zend_qsort.c | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/Zend/zend_qsort.c b/Zend/zend_qsort.c deleted file mode 100644 index 1f7d223d6e..0000000000 --- a/Zend/zend_qsort.c +++ /dev/null @@ -1,127 +0,0 @@ -/* - +----------------------------------------------------------------------+ - | Zend Engine | - +----------------------------------------------------------------------+ - | Copyright (c) 1998-2003 Zend Technologies Ltd. (http://www.zend.com) | - +----------------------------------------------------------------------+ - | This source file is subject to version 2.00 of the Zend license, | - | that is bundled with this package in the file LICENSE, and is | - | available at through the world-wide-web at | - | http://www.zend.com/license/2_00.txt. | - | If you did not receive a copy of the Zend license and are unable to | - | obtain it through the world-wide-web, please send a note to | - | license@zend.com so we can mail you a copy immediately. | - +----------------------------------------------------------------------+ - | Authors: Sterling Hughes <sterling@php.net> | - +----------------------------------------------------------------------+ -*/ - -/* $Id$ */ - -#include "zend.h" - -#include <limits.h> - -#define QSORT_STACK_SIZE (sizeof(size_t) * CHAR_BIT) - -static void _zend_qsort_swap(void *a, void *b, size_t siz) -{ - register char *tmp_a_char; - register char *tmp_b_char; - register int *tmp_a_int; - register int *tmp_b_int; - register size_t i; - int t_i; - char t_c; - - tmp_a_int = (int *) a; - tmp_b_int = (int *) b; - - for (i = sizeof(int); i <= siz; i += sizeof(int)) { - t_i = *tmp_a_int; - *tmp_a_int++ = *tmp_b_int; - *tmp_b_int++ = t_i; - } - - tmp_a_char = (char *) tmp_a_int; - tmp_b_char = (char *) tmp_b_int; - - for (i = i - sizeof(int) + 1; i <= siz; ++i) { - t_c = *tmp_a_char; - *tmp_a_char++ = *tmp_b_char; - *tmp_b_char++ = t_c; - } -} - -ZEND_API void zend_qsort(void *base, size_t nmemb, size_t siz, compare_func_t compare TSRMLS_DC) -{ - void *begin_stack[QSORT_STACK_SIZE]; - void *end_stack[QSORT_STACK_SIZE]; - register char *begin; - register char *end; - register char *seg1; - register char *seg2; - register char *seg2p; - register int loop; - uint offset; - - begin_stack[0] = (char *) base; - end_stack[0] = (char *) base + ((nmemb - 1) * siz); - - for (loop = 0; loop >= 0; --loop) { - begin = begin_stack[loop]; - end = end_stack[loop]; - - while (begin < end) { - offset = (end - begin) >> 1; - _zend_qsort_swap(begin, begin + (offset - (offset % siz)), siz); - - seg1 = begin + siz; - seg2 = end; - - while (1) { - for (; seg1 < seg2 && compare(begin, seg1 TSRMLS_CC) > 0; - seg1 += siz); - - for (; seg2 >= seg1 && compare(seg2, begin TSRMLS_CC) > 0; - seg2 -= siz); - - if (seg1 >= seg2) - break; - - _zend_qsort_swap(seg1, seg2, siz); - - seg1 += siz; - seg2 -= siz; - } - - _zend_qsort_swap(begin, seg2, siz); - - seg2p = seg2; - - if ((seg2p - begin) <= (end - seg2p)) { - if ((seg2p + siz) < end) { - begin_stack[loop] = seg2p + siz; - end_stack[loop++] = end; - } - end = seg2p - siz; - } - else { - if ((seg2p - siz) > begin) { - begin_stack[loop] = begin; - end_stack[loop++] = seg2p - siz; - } - begin = seg2p + siz; - } - } - } -} - -/* - * Local Variables: - * c-basic-offset: 4 - * tab-width: 4 - * End: - * vim600: fdm=marker - * vim: noet sw=4 ts=4 - */ |