mirror of
https://github.com/php/php-src.git
synced 2024-12-02 06:13:40 +08:00
73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| Zend Engine |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1998-2004 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 through the world-wide-web at the following url: |
|
|
| 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: Andi Gutmans <andi@zend.com> |
|
|
| Zeev Suraski <zeev@zend.com> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
/* $Id$ */
|
|
|
|
#include "zend.h"
|
|
|
|
typedef struct _dynamic_array {
|
|
char *array;
|
|
unsigned int element_size;
|
|
unsigned int current;
|
|
unsigned int allocated;
|
|
} dynamic_array;
|
|
|
|
ZEND_API int zend_dynamic_array_init(dynamic_array *da, unsigned int element_size, unsigned int size)
|
|
{
|
|
da->element_size = element_size;
|
|
da->allocated = size;
|
|
da->current = 0;
|
|
da->array = (char *) emalloc(size*element_size);
|
|
if (da->array == NULL) {
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
ZEND_API void *zend_dynamic_array_push(dynamic_array *da)
|
|
{
|
|
if (da->current == da->allocated) {
|
|
da->allocated *= 2;
|
|
da->array = (char *) erealloc(da->array, da->allocated*da->element_size);
|
|
}
|
|
return (void *)(da->array+(da->current++)*da->element_size);
|
|
}
|
|
|
|
ZEND_API void *zend_dynamic_array_pop(dynamic_array *da)
|
|
{
|
|
return (void *)(da->array+(--(da->current))*da->element_size);
|
|
|
|
}
|
|
|
|
ZEND_API void *zend_dynamic_array_get_element(dynamic_array *da, unsigned int index)
|
|
{
|
|
if (index >= da->current) {
|
|
return NULL;
|
|
}
|
|
return (void *)(da->array+index*da->element_size);
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*/
|