php-src/Zend/zend_stack.h
George Peter Banyard fa8d9b1183 Improve type declarations for Zend APIs
Voidification of Zend API which always succeeded
Use bool argument types instead of int for boolean arguments
Use bool return type for functions which return true/false (1/0)
Use zend_result return type for functions which return SUCCESS/FAILURE as they don't follow normal boolean semantics

Closes GH-6002
2020-08-28 15:41:27 +02:00

50 lines
2.3 KiB
C

/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 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@php.net> |
| Zeev Suraski <zeev@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_STACK_H
#define ZEND_STACK_H
typedef struct _zend_stack {
int size, top, max;
void *elements;
} zend_stack;
#define STACK_BLOCK_SIZE 16
BEGIN_EXTERN_C()
ZEND_API void zend_stack_init(zend_stack *stack, int size);
ZEND_API int zend_stack_push(zend_stack *stack, const void *element);
ZEND_API void *zend_stack_top(const zend_stack *stack);
ZEND_API void zend_stack_del_top(zend_stack *stack);
ZEND_API int zend_stack_int_top(const zend_stack *stack);
ZEND_API bool zend_stack_is_empty(const zend_stack *stack);
ZEND_API void zend_stack_destroy(zend_stack *stack);
ZEND_API void *zend_stack_base(const zend_stack *stack);
ZEND_API int zend_stack_count(const zend_stack *stack);
ZEND_API void zend_stack_apply(zend_stack *stack, int type, int (*apply_function)(void *element));
ZEND_API void zend_stack_apply_with_argument(zend_stack *stack, int type, int (*apply_function)(void *element, void *arg), void *arg);
ZEND_API void zend_stack_clean(zend_stack *stack, void (*func)(void *), zend_bool free_elements);
END_EXTERN_C()
#define ZEND_STACK_APPLY_TOPDOWN 1
#define ZEND_STACK_APPLY_BOTTOMUP 2
#endif /* ZEND_STACK_H */