mirror of
https://github.com/php/php-src.git
synced 2024-09-21 09:57:23 +00:00
78 lines
3.1 KiB
C
78 lines
3.1 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| Zend Engine |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1998-2018 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: Anatol Belski <ab@php.net> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
#ifndef ZEND_RANGE_CHECK_H
|
|
#define ZEND_RANGE_CHECK_H
|
|
|
|
#include "zend_long.h"
|
|
|
|
/* Flag macros for basic range recognition. Notable is that
|
|
always sizeof(signed) == sizeof(unsigned), so no need to
|
|
overcomplicate things. */
|
|
#if SIZEOF_INT < SIZEOF_ZEND_LONG
|
|
# define ZEND_LONG_CAN_OVFL_INT 1
|
|
# define ZEND_LONG_CAN_OVFL_UINT 1
|
|
#endif
|
|
|
|
#if SIZEOF_INT < SIZEOF_SIZE_T
|
|
/* size_t can always overflow signed int on the same platform.
|
|
Furthermore, by the current design, size_t can always
|
|
overflow zend_long. */
|
|
# define ZEND_SIZE_T_CAN_OVFL_UINT 1
|
|
#endif
|
|
|
|
|
|
/* zend_long vs. (unsigned) int checks. */
|
|
#ifdef ZEND_LONG_CAN_OVFL_INT
|
|
# define ZEND_LONG_INT_OVFL(zlong) UNEXPECTED((zlong) > (zend_long)INT_MAX)
|
|
# define ZEND_LONG_INT_UDFL(zlong) UNEXPECTED((zlong) < (zend_long)INT_MIN)
|
|
# define ZEND_LONG_EXCEEDS_INT(zlong) UNEXPECTED(ZEND_LONG_INT_OVFL(zlong) || ZEND_LONG_INT_UDFL(zlong))
|
|
# define ZEND_LONG_UINT_OVFL(zlong) UNEXPECTED((zlong) < 0 || (zlong) > (zend_long)UINT_MAX)
|
|
#else
|
|
# define ZEND_LONG_INT_OVFL(zl) (0)
|
|
# define ZEND_LONG_INT_UDFL(zl) (0)
|
|
# define ZEND_LONG_EXCEEDS_INT(zlong) (0)
|
|
# define ZEND_LONG_UINT_OVFL(zl) (0)
|
|
#endif
|
|
|
|
/* size_t vs (unsigned) int checks. */
|
|
#define ZEND_SIZE_T_INT_OVFL(size) UNEXPECTED((size) > (size_t)INT_MAX)
|
|
#ifdef ZEND_SIZE_T_CAN_OVFL_UINT
|
|
# define ZEND_SIZE_T_UINT_OVFL(size) UNEXPECTED((size) > (size_t)UINT_MAX)
|
|
#else
|
|
# define ZEND_SIZE_T_UINT_OVFL(size) (0)
|
|
#endif
|
|
|
|
/* Comparison zend_long vs size_t */
|
|
#define ZEND_SIZE_T_GT_ZEND_LONG(size, zlong) ((zlong) < 0 || (size) > (size_t)(zlong))
|
|
#define ZEND_SIZE_T_GTE_ZEND_LONG(size, zlong) ((zlong) < 0 || (size) >= (size_t)(zlong))
|
|
#define ZEND_SIZE_T_LT_ZEND_LONG(size, zlong) ((zlong) >= 0 && (size) < (size_t)(zlong))
|
|
#define ZEND_SIZE_T_LTE_ZEND_LONG(size, zlong) ((zlong) >= 0 && (size) <= (size_t)(zlong))
|
|
|
|
#endif /* ZEND_RANGE_CHECK_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
* vim600: sw=4 ts=4 fdm=marker
|
|
* vim<600: sw=4 ts=4
|
|
*/
|