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proc/self/root/opt/alt/php52/usr/include/php/Zend/_[ Not.Writable ]

File://proc/self/root/opt/alt/php52/usr/include/php/Zend/zend_operators.h

/*
   +----------------------------------------------------------------------+
   | Zend Engine                                                          |
   +----------------------------------------------------------------------+
   | Copyright (c) 1998-2010 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: zend_operators.h 300606 2010-06-19 20:47:24Z felipe $ */

#ifndef ZEND_OPERATORS_H
#define ZEND_OPERATORS_H

#include <errno.h>
#include <math.h>
#include <assert.h>

#ifdef HAVE_IEEEFP_H
#include <ieeefp.h>
#endif

#include "zend_strtod.h"

#if 0&&HAVE_BCMATH
#include "ext/bcmath/libbcmath/src/bcmath.h"
#endif

BEGIN_EXTERN_C()
ZEND_API int add_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int sub_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int mul_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int div_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int mod_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int boolean_xor_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int boolean_not_function(zval *result, zval *op1 TSRMLS_DC);
ZEND_API int bitwise_not_function(zval *result, zval *op1 TSRMLS_DC);
ZEND_API int bitwise_or_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int bitwise_and_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int bitwise_xor_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int shift_left_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int shift_right_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int concat_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);

ZEND_API int is_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_identical_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_not_identical_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_not_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_smaller_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int is_smaller_or_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);

ZEND_API zend_bool instanceof_function_ex(zend_class_entry *instance_ce, zend_class_entry *ce, zend_bool interfaces_only TSRMLS_DC);
ZEND_API zend_bool instanceof_function(zend_class_entry *instance_ce, zend_class_entry *ce TSRMLS_DC);
END_EXTERN_C()

#define ZEND_IS_DIGIT(c) ((c) >= '0' && (c) <= '9')
#define ZEND_IS_XDIGIT(c) (((c) >= 'A' && (c) <= 'F') || ((c) >= 'a'  && (c) <= 'f'))

/**
 * Checks whether the string "str" with length "length" is numeric. The value
 * of allow_errors determines whether it's required to be entirely numeric, or
 * just its prefix. Leading whitespace is allowed.
 *
 * The function returns 0 if the string did not contain a valid number; IS_LONG
 * if it contained a number that fits within the range of a long; or IS_DOUBLE
 * if the number was out of long range or contained a decimal point/exponent.
 * The number's value is returned into the respective pointer, *lval or *dval,
 * if that pointer is not NULL.
 */

static inline zend_uchar is_numeric_string(const char *str, int length, long *lval, double *dval, int allow_errors)
{
	const char *ptr;
	int base = 10, digits = 0, dp_or_e = 0;
	double local_dval;
	zend_uchar type;

	if (!length) {
		return 0;
	}

	/* Skip any whitespace
	 * This is much faster than the isspace() function */
	while (*str == ' ' || *str == '\t' || *str == '\n' || *str == '\r' || *str == '\v' || *str == '\f') {
		str++;
		length--;
	}
	ptr = str;

	if (*ptr == '-' || *ptr == '+') {
		ptr++;
	}

	if (ZEND_IS_DIGIT(*ptr)) {
		/* Handle hex numbers
		 * str is used instead of ptr to disallow signs and keep old behavior */
		if (length > 2 && *str == '0' && (str[1] == 'x' || str[1] == 'X')) {
			base = 16;
			ptr += 2;
		}

		/* Skip any leading 0s */
		while (*ptr == '0') {
			ptr++;
		}

		/* Count the number of digits. If a decimal point/exponent is found,
		 * it's a double. Otherwise, if there's a dval or no need to check for
		 * a full match, stop when there are too many digits for a long */
		for (type = IS_LONG; !(digits >= MAX_LENGTH_OF_LONG && (dval || allow_errors == 1)); digits++, ptr++) {
check_digits:
			if (ZEND_IS_DIGIT(*ptr) || (base == 16 && ZEND_IS_XDIGIT(*ptr))) {
				continue;
			} else if (base == 10) {
				if (*ptr == '.' && dp_or_e < 1) {
					goto process_double;
				} else if ((*ptr == 'e' || *ptr == 'E') && dp_or_e < 2) {
					const char *e = ptr + 1;

					if (*e == '-' || *e == '+') {
						ptr = e++;
					}
					if (ZEND_IS_DIGIT(*e)) {
						goto process_double;
					}
				}
			}

			break;
		}

		if (base == 10) {
			if (digits >= MAX_LENGTH_OF_LONG) {
				dp_or_e = -1;
				goto process_double;
			}
		} else if (!(digits < SIZEOF_LONG * 2 || (digits == SIZEOF_LONG * 2 && ptr[-digits] <= '7'))) {
			if (dval) {
				local_dval = zend_hex_strtod(str, (char **)&ptr);
			}
			type = IS_DOUBLE;
		}
	} else if (*ptr == '.' && ZEND_IS_DIGIT(ptr[1])) {
process_double:
		type = IS_DOUBLE;

		/* If there's a dval, do the conversion; else continue checking
		 * the digits if we need to check for a full match */
		if (dval) {
			local_dval = zend_strtod(str, (char **)&ptr);
		} else if (allow_errors != 1 && dp_or_e != -1) {
			dp_or_e = (*ptr++ == '.') ? 1 : 2;
			goto check_digits;
		}
	} else {
		return 0;
	}

	if (ptr != str + length) {
		if (!allow_errors) {
			return 0;
		}
		if (allow_errors == -1) {
			zend_error(E_NOTICE, "A non well formed numeric value encountered");
		}
	}

	if (type == IS_LONG) {
		if (digits == MAX_LENGTH_OF_LONG - 1) {
			int cmp = strcmp(&ptr[-digits], long_min_digits);

			if (!(cmp < 0 || (cmp == 0 && *str == '-'))) {
				if (dval) {
					*dval = zend_strtod(str, NULL);
				}

				return IS_DOUBLE;
			}
		}

		if (lval) {
			*lval = strtol(str, NULL, base);
		}

		return IS_LONG;
	} else {
		if (dval) {
			*dval = local_dval;
		}

		return IS_DOUBLE;
	}
}

static inline char *
zend_memnstr(char *haystack, char *needle, int needle_len, char *end)
{
	char *p = haystack;
	char ne = needle[needle_len-1];

	if(needle_len > end-haystack) {
		return NULL;
	}
	end -= needle_len;

	while (p <= end) {
		if ((p = (char *)memchr(p, *needle, (end-p+1))) && ne == p[needle_len-1]) {
			if (!memcmp(needle, p, needle_len-1)) {
				return p;
			}
		}

		if (p == NULL) {
			return NULL;
		}

		p++;
	}

	return NULL;
}

static inline void *zend_memrchr(const void *s, int c, size_t n)
{
	register unsigned char *e;

	if (n <= 0) {
		return NULL;
	}

	for (e = (unsigned char *)s + n - 1; e >= (unsigned char *)s; e--) {
		if (*e == (unsigned char)c) {
			return (void *)e;
		}
	}

	return NULL;
}

BEGIN_EXTERN_C()
ZEND_API int increment_function(zval *op1);
ZEND_API int decrement_function(zval *op2);

ZEND_API void convert_scalar_to_number(zval *op TSRMLS_DC);
ZEND_API void _convert_to_string(zval *op ZEND_FILE_LINE_DC);
ZEND_API void convert_to_long(zval *op);
ZEND_API void convert_to_double(zval *op);
ZEND_API void convert_to_long_base(zval *op, int base);
ZEND_API void convert_to_null(zval *op);
ZEND_API void convert_to_boolean(zval *op);
ZEND_API void convert_to_array(zval *op);
ZEND_API void convert_to_object(zval *op);
ZEND_API void multi_convert_to_long_ex(int argc, ...);
ZEND_API void multi_convert_to_double_ex(int argc, ...);
ZEND_API void multi_convert_to_string_ex(int argc, ...);
ZEND_API int add_char_to_string(zval *result, zval *op1, zval *op2);
ZEND_API int add_string_to_string(zval *result, zval *op1, zval *op2);
#define convert_to_string(op) if ((op)->type != IS_STRING) { _convert_to_string((op) ZEND_FILE_LINE_CC); }

ZEND_API double zend_string_to_double(const char *number, zend_uint length);

ZEND_API int zval_is_true(zval *op);
ZEND_API int compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int numeric_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
ZEND_API int string_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
#if HAVE_STRCOLL
ZEND_API int string_locale_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC);
#endif

ZEND_API void zend_str_tolower(char *str, unsigned int length);
ZEND_API char *zend_str_tolower_copy(char *dest, const char *source, unsigned int length);
END_EXTERN_C()

static inline char *
zend_str_tolower_dup(const char *source, unsigned int length)
{
	return zend_str_tolower_copy((char *)emalloc(length+1), source, length);
}

BEGIN_EXTERN_C()
ZEND_API int zend_binary_zval_strcmp(zval *s1, zval *s2);
ZEND_API int zend_binary_zval_strncmp(zval *s1, zval *s2, zval *s3);
ZEND_API int zend_binary_zval_strcasecmp(zval *s1, zval *s2);
ZEND_API int zend_binary_zval_strncasecmp(zval *s1, zval *s2, zval *s3);
ZEND_API int zend_binary_strcmp(char *s1, uint len1, char *s2, uint len2);
ZEND_API int zend_binary_strncmp(char *s1, uint len1, char *s2, uint len2, uint length);
ZEND_API int zend_binary_strcasecmp(char *s1, uint len1, char *s2, uint len2);
ZEND_API int zend_binary_strncasecmp(char *s1, uint len1, char *s2, uint len2, uint length);

ZEND_API void zendi_smart_strcmp(zval *result, zval *s1, zval *s2);
ZEND_API void zend_compare_symbol_tables(zval *result, HashTable *ht1, HashTable *ht2 TSRMLS_DC);
ZEND_API void zend_compare_arrays(zval *result, zval *a1, zval *a2 TSRMLS_DC);
ZEND_API void zend_compare_objects(zval *result, zval *o1, zval *o2 TSRMLS_DC);

ZEND_API int zend_atoi(const char *str, int str_len);
ZEND_API long zend_atol(const char *str, int str_len);

ZEND_API void zend_locale_sprintf_double(zval *op ZEND_FILE_LINE_DC);
END_EXTERN_C()
#define convert_to_ex_master(ppzv, lower_type, upper_type)	\
	if ((*ppzv)->type!=IS_##upper_type) {					\
		SEPARATE_ZVAL_IF_NOT_REF(ppzv);						\
		convert_to_##lower_type(*ppzv);						\
	}

#define convert_to_explicit_type(pzv, type)		\
    do {										\
		switch (type) {							\
			case IS_NULL:						\
				convert_to_null(pzv);			\
				break;							\
			case IS_LONG:						\
				convert_to_long(pzv);			\
				break;							\
			case IS_DOUBLE: 					\
				convert_to_double(pzv); 		\
				break; 							\
			case IS_BOOL: 						\
				convert_to_boolean(pzv); 		\
				break; 							\
			case IS_ARRAY: 						\
				convert_to_array(pzv); 			\
				break; 							\
			case IS_OBJECT: 					\
				convert_to_object(pzv); 		\
				break; 							\
			case IS_STRING: 					\
				convert_to_string(pzv); 		\
				break; 							\
			default: 							\
				assert(0); 						\
				break; 							\
		}										\
	} while (0);								\

#define convert_to_explicit_type_ex(ppzv, str_type)	\
	if (Z_TYPE_PP(ppzv) != str_type) {				\
		SEPARATE_ZVAL_IF_NOT_REF(ppzv);				\
		convert_to_explicit_type(*ppzv, str_type);	\
	}

#define convert_to_boolean_ex(ppzv)	convert_to_ex_master(ppzv, boolean, BOOL)
#define convert_to_long_ex(ppzv)	convert_to_ex_master(ppzv, long, LONG)
#define convert_to_double_ex(ppzv)	convert_to_ex_master(ppzv, double, DOUBLE)
#define convert_to_string_ex(ppzv)	convert_to_ex_master(ppzv, string, STRING)
#define convert_to_array_ex(ppzv)	convert_to_ex_master(ppzv, array, ARRAY)
#define convert_to_object_ex(ppzv)	convert_to_ex_master(ppzv, object, OBJECT)
#define convert_to_null_ex(ppzv)	convert_to_ex_master(ppzv, null, NULL)

#define convert_scalar_to_number_ex(ppzv)							\
	if (Z_TYPE_PP(ppzv)!=IS_LONG && Z_TYPE_PP(ppzv)!=IS_DOUBLE) {		\
		if (!(*ppzv)->is_ref) {										\
			SEPARATE_ZVAL(ppzv);									\
		}															\
		convert_scalar_to_number(*ppzv TSRMLS_CC);					\
	}


#define Z_LVAL(zval)			(zval).value.lval
#define Z_BVAL(zval)			((zend_bool)(zval).value.lval)
#define Z_DVAL(zval)			(zval).value.dval
#define Z_STRVAL(zval)			(zval).value.str.val
#define Z_STRLEN(zval)			(zval).value.str.len
#define Z_ARRVAL(zval)			(zval).value.ht
#define Z_OBJVAL(zval)			(zval).value.obj
#define Z_OBJ_HANDLE(zval)		Z_OBJVAL(zval).handle
#define Z_OBJ_HT(zval)			Z_OBJVAL(zval).handlers
#define Z_OBJCE(zval)			zend_get_class_entry(&(zval) TSRMLS_CC)
#define Z_OBJPROP(zval)			Z_OBJ_HT((zval))->get_properties(&(zval) TSRMLS_CC)
#define Z_OBJ_HANDLER(zval, hf) Z_OBJ_HT((zval))->hf
#define Z_RESVAL(zval)			(zval).value.lval

#define Z_LVAL_P(zval_p)		Z_LVAL(*zval_p)
#define Z_BVAL_P(zval_p)		Z_BVAL(*zval_p)
#define Z_DVAL_P(zval_p)		Z_DVAL(*zval_p)
#define Z_STRVAL_P(zval_p)		Z_STRVAL(*zval_p)
#define Z_STRLEN_P(zval_p)		Z_STRLEN(*zval_p)
#define Z_ARRVAL_P(zval_p)		Z_ARRVAL(*zval_p)
#define Z_OBJPROP_P(zval_p)		Z_OBJPROP(*zval_p)
#define Z_OBJCE_P(zval_p)		Z_OBJCE(*zval_p)
#define Z_RESVAL_P(zval_p)		Z_RESVAL(*zval_p)
#define Z_OBJVAL_P(zval_p)      Z_OBJVAL(*zval_p)
#define Z_OBJ_HANDLE_P(zval_p)  Z_OBJ_HANDLE(*zval_p)
#define Z_OBJ_HT_P(zval_p)      Z_OBJ_HT(*zval_p)
#define Z_OBJ_HANDLER_P(zval_p, h) Z_OBJ_HANDLER(*zval_p, h)

#define Z_LVAL_PP(zval_pp)		Z_LVAL(**zval_pp)
#define Z_BVAL_PP(zval_pp)		Z_BVAL(**zval_pp)
#define Z_DVAL_PP(zval_pp)		Z_DVAL(**zval_pp)
#define Z_STRVAL_PP(zval_pp)	Z_STRVAL(**zval_pp)
#define Z_STRLEN_PP(zval_pp)	Z_STRLEN(**zval_pp)
#define Z_ARRVAL_PP(zval_pp)	Z_ARRVAL(**zval_pp)
#define Z_OBJPROP_PP(zval_pp)	Z_OBJPROP(**zval_pp)
#define Z_OBJCE_PP(zval_pp)		Z_OBJCE(**zval_pp)
#define Z_RESVAL_PP(zval_pp)	Z_RESVAL(**zval_pp)
#define Z_OBJVAL_PP(zval_pp)    Z_OBJVAL(**zval_pp)
#define Z_OBJ_HANDLE_PP(zval_p) Z_OBJ_HANDLE(**zval_p)
#define Z_OBJ_HT_PP(zval_p)     Z_OBJ_HT(**zval_p)
#define Z_OBJ_HANDLER_PP(zval_p, h) Z_OBJ_HANDLER(**zval_p, h)

#define Z_TYPE(zval)		(zval).type
#define Z_TYPE_P(zval_p)	Z_TYPE(*zval_p)
#define Z_TYPE_PP(zval_pp)	Z_TYPE(**zval_pp)

#if HAVE_SETLOCALE && defined(ZEND_WIN32) && !defined(ZTS) && defined(_MSC_VER) && (_MSC_VER >= 1400)
/* This is performance improvement of tolower() on Windows and VC2005
 * GIves 10-18% on bench.php
 */
#define ZEND_USE_TOLOWER_L 1
#endif

#ifdef ZEND_USE_TOLOWER_L
ZEND_API void zend_update_current_locale(void);
#else
#define zend_update_current_locale()
#endif

#endif

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * indent-tabs-mode: t
 * End:
 */

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