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b8617a6183
php-src/Zend/zend_operators.h
Antony Dovgal b8617a6183 add zend_memrchr()
2006-08-08 09:41:09 +00:00

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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2006 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> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#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
#define MAX_LENGTH_OF_LONG 20
#define MAX_LENGTH_OF_DOUBLE 32
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()
static inline zend_bool is_numeric_string(char *str, int length, long *lval, double *dval, int allow_errors)
{
long local_lval;
double local_dval;
char *end_ptr_long, *end_ptr_double;
int conv_base=10;
if (!length) {
return 0;
}
/* handle hex numbers */
if (length>=2 && str[0]=='0' && (str[1]=='x' || str[1]=='X')) {
conv_base=16;
}
errno=0;
local_lval = strtol(str, &end_ptr_long, conv_base);
if (errno!=ERANGE) {
if (end_ptr_long == str+length) { /* integer string */
if (lval) {
*lval = local_lval;
}
return IS_LONG;
} else if (end_ptr_long == str && *end_ptr_long != '\0' && *str != '.' && *str != '-') { /* ignore partial string matches */
return 0;
}
} else {
end_ptr_long=NULL;
}
if (conv_base==16) { /* hex string, under UNIX strtod() messes it up */
return 0;
}
errno=0;
local_dval = zend_strtod(str, &end_ptr_double);
if (errno != ERANGE) {
if (end_ptr_double == str+length) { /* floating point string */
if (!zend_finite(local_dval)) {
/* "inf","nan" and maybe other weird ones */
return 0;
}
if (dval) {
*dval = local_dval;
}
return IS_DOUBLE;
}
} else {
end_ptr_double=NULL;
}
if (!allow_errors) {
return 0;
}
if (allow_errors == -1) {
zend_error(E_NOTICE, "A non well formed numeric value encountered");
}
if (end_ptr_double>end_ptr_long && dval) {
*dval = local_dval;
return IS_DOUBLE;
} else if (end_ptr_long && lval) {
*lval = local_lval;
return IS_LONG;
}
return 0;
}
static inline char *
zend_memnstr(char *haystack, char *needle, int needle_len, char *end)
{
char *p = haystack;
char ne = needle[needle_len-1];
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;
}
#ifdef HAVE_MEMRCHR
# ifndef __USE_GNU
# define __USE_GNU
# endif
#include <string.h>
#define zend_memrchr memrchr
#else
static inline void *zend_memrchr(const void *s, int c, size_t n)
{
register unsigned char *e = (unsigned char *)s + n;
for (e--; e >= (unsigned char *)s; e--) {
if (*e == (unsigned char)c) {
return (void *)e;
}
}
return NULL;
}
#endif
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) _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 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)
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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