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php-src/Zend/zend_operators.c
Xinchen Hui 9712a974be Also protects object to array cast
2016-03-21 19:12:50 +08:00

3013 lines
74 KiB
C
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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2016 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> |
| Dmitry Stogov <dmitry@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include <ctype.h>
#include "zend.h"
#include "zend_operators.h"
#include "zend_variables.h"
#include "zend_globals.h"
#include "zend_list.h"
#include "zend_API.h"
#include "zend_strtod.h"
#include "zend_exceptions.h"
#include "zend_closures.h"
#if ZEND_USE_TOLOWER_L
#include <locale.h>
static _locale_t current_locale = NULL;
/* this is true global! may lead to strange effects on ZTS, but so may setlocale() */
#define zend_tolower(c) _tolower_l(c, current_locale)
#else
#define zend_tolower(c) tolower(c)
#endif
#define TYPE_PAIR(t1,t2) (((t1) << 4) | (t2))
static const unsigned char tolower_map[256] = {
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
0x40,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x5b,0x5c,0x5d,0x5e,0x5f,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,
0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf,
0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,
0xd0,0xd1,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xdb,0xdc,0xdd,0xde,0xdf,
0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xeb,0xec,0xed,0xee,0xef,
0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff
};
#define zend_tolower_ascii(c) (tolower_map[(unsigned char)(c)])
/**
* Functions using locale lowercase:
zend_binary_strncasecmp_l
zend_binary_strcasecmp_l
zend_binary_zval_strcasecmp
zend_binary_zval_strncasecmp
string_compare_function_ex
string_case_compare_function
* Functions using ascii lowercase:
zend_str_tolower_copy
zend_str_tolower_dup
zend_str_tolower
zend_binary_strcasecmp
zend_binary_strncasecmp
*/
ZEND_API int ZEND_FASTCALL zend_atoi(const char *str, int str_len) /* {{{ */
{
int retval;
if (!str_len) {
str_len = (int)strlen(str);
}
retval = ZEND_STRTOL(str, NULL, 0);
if (str_len>0) {
switch (str[str_len-1]) {
case 'g':
case 'G':
retval *= 1024;
/* break intentionally missing */
case 'm':
case 'M':
retval *= 1024;
/* break intentionally missing */
case 'k':
case 'K':
retval *= 1024;
break;
}
}
return retval;
}
/* }}} */
ZEND_API zend_long ZEND_FASTCALL zend_atol(const char *str, int str_len) /* {{{ */
{
zend_long retval;
if (!str_len) {
str_len = (int)strlen(str);
}
retval = ZEND_STRTOL(str, NULL, 0);
if (str_len>0) {
switch (str[str_len-1]) {
case 'g':
case 'G':
retval *= 1024;
/* break intentionally missing */
case 'm':
case 'M':
retval *= 1024;
/* break intentionally missing */
case 'k':
case 'K':
retval *= 1024;
break;
}
}
return retval;
}
/* }}} */
static zend_always_inline void zend_unwrap_reference(zval *op) /* {{{ */
{
if (Z_REFCOUNT_P(op) == 1) {
ZVAL_UNREF(op);
} else {
Z_DELREF_P(op);
ZVAL_COPY(op, Z_REFVAL_P(op));
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_scalar_to_number(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
case IS_STRING:
{
zend_string *str;
str = Z_STR_P(op);
if ((Z_TYPE_INFO_P(op)=is_numeric_string(ZSTR_VAL(str), ZSTR_LEN(str), &Z_LVAL_P(op), &Z_DVAL_P(op), 1)) == 0) {
ZVAL_LONG(op, 0);
}
zend_string_release(str);
break;
}
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(op, 0);
break;
case IS_TRUE:
ZVAL_LONG(op, 1);
break;
case IS_RESOURCE:
{
zend_long l = Z_RES_HANDLE_P(op);
zval_ptr_dtor(op);
ZVAL_LONG(op, l);
}
break;
case IS_OBJECT:
convert_to_long_base(op, 10);
break;
}
}
/* }}} */
/* {{{ zendi_convert_scalar_to_number */
#define zendi_convert_scalar_to_number(op, holder, result) \
if (op==result) { \
if (Z_TYPE_P(op) != IS_LONG) { \
convert_scalar_to_number(op); \
} \
} else { \
switch (Z_TYPE_P(op)) { \
case IS_STRING: \
{ \
if ((Z_TYPE_INFO(holder)=is_numeric_string(Z_STRVAL_P(op), Z_STRLEN_P(op), &Z_LVAL(holder), &Z_DVAL(holder), 1)) == 0) { \
ZVAL_LONG(&(holder), 0); \
} \
(op) = &(holder); \
break; \
} \
case IS_NULL: \
case IS_FALSE: \
ZVAL_LONG(&(holder), 0); \
(op) = &(holder); \
break; \
case IS_TRUE: \
ZVAL_LONG(&(holder), 1); \
(op) = &(holder); \
break; \
case IS_RESOURCE: \
ZVAL_LONG(&(holder), Z_RES_HANDLE_P(op)); \
(op) = &(holder); \
break; \
case IS_OBJECT: \
ZVAL_COPY(&(holder), op); \
convert_to_long_base(&(holder), 10); \
if (Z_TYPE(holder) == IS_LONG) { \
(op) = &(holder); \
} \
break; \
} \
}
/* }}} */
/* {{{ convert_object_to_type: dst will be either ctype or UNDEF */
#define convert_object_to_type(op, dst, ctype, conv_func) \
ZVAL_UNDEF(dst); \
if (Z_OBJ_HT_P(op)->cast_object) { \
if (Z_OBJ_HT_P(op)->cast_object(op, dst, ctype) == FAILURE) { \
zend_error(E_RECOVERABLE_ERROR, \
"Object of class %s could not be converted to %s", ZSTR_VAL(Z_OBJCE_P(op)->name),\
zend_get_type_by_const(ctype)); \
} \
} else if (Z_OBJ_HT_P(op)->get) { \
zval *newop = Z_OBJ_HT_P(op)->get(op, dst); \
if (Z_TYPE_P(newop) != IS_OBJECT) { \
/* for safety - avoid loop */ \
ZVAL_COPY_VALUE(dst, newop); \
conv_func(dst); \
} \
}
/* }}} */
#define convert_op1_op2_long(op1, op1_lval, op2, op2_lval, op, op_func) \
do { \
if (UNEXPECTED(Z_TYPE_P(op1) != IS_LONG)) { \
if (Z_ISREF_P(op1)) { \
op1 = Z_REFVAL_P(op1); \
if (Z_TYPE_P(op1) == IS_LONG) { \
op1_lval = Z_LVAL_P(op1); \
break; \
} \
} \
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(op, op_func); \
op1_lval = _zval_get_long_func(op1); \
} else { \
op1_lval = Z_LVAL_P(op1); \
} \
} while (0); \
do { \
if (UNEXPECTED(Z_TYPE_P(op2) != IS_LONG)) { \
if (Z_ISREF_P(op2)) { \
op2 = Z_REFVAL_P(op2); \
if (Z_TYPE_P(op2) == IS_LONG) { \
op2_lval = Z_LVAL_P(op2); \
break; \
} \
} \
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(op); \
op2_lval = _zval_get_long_func(op2); \
} else { \
op2_lval = Z_LVAL_P(op2); \
} \
} while (0);
ZEND_API void ZEND_FASTCALL convert_to_long(zval *op) /* {{{ */
{
if (Z_TYPE_P(op) != IS_LONG) {
convert_to_long_base(op, 10);
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_long_base(zval *op, int base) /* {{{ */
{
zend_long tmp;
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(op, 0);
break;
case IS_TRUE:
ZVAL_LONG(op, 1);
break;
case IS_RESOURCE:
tmp = Z_RES_HANDLE_P(op);
zval_ptr_dtor(op);
ZVAL_LONG(op, tmp);
break;
case IS_LONG:
break;
case IS_DOUBLE:
ZVAL_LONG(op, zend_dval_to_lval(Z_DVAL_P(op)));
break;
case IS_STRING:
{
zend_string *str = Z_STR_P(op);
ZVAL_LONG(op, ZEND_STRTOL(ZSTR_VAL(str), NULL, base));
zend_string_release(str);
}
break;
case IS_ARRAY:
tmp = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
zval_ptr_dtor(op);
ZVAL_LONG(op, tmp);
break;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_LONG, convert_to_long);
zval_dtor(op);
if (Z_TYPE(dst) == IS_LONG) {
ZVAL_COPY_VALUE(op, &dst);
} else {
ZVAL_LONG(op, 1);
}
return;
}
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_double(zval *op) /* {{{ */
{
double tmp;
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_DOUBLE(op, 0.0);
break;
case IS_TRUE:
ZVAL_DOUBLE(op, 1.0);
break;
case IS_RESOURCE: {
double d = (double) Z_RES_HANDLE_P(op);
zval_ptr_dtor(op);
ZVAL_DOUBLE(op, d);
}
break;
case IS_LONG:
ZVAL_DOUBLE(op, (double) Z_LVAL_P(op));
break;
case IS_DOUBLE:
break;
case IS_STRING:
{
zend_string *str = Z_STR_P(op);
ZVAL_DOUBLE(op, zend_strtod(ZSTR_VAL(str), NULL));
zend_string_release(str);
}
break;
case IS_ARRAY:
tmp = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
zval_ptr_dtor(op);
ZVAL_DOUBLE(op, tmp);
break;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_DOUBLE, convert_to_double);
zval_dtor(op);
if (Z_TYPE(dst) == IS_DOUBLE) {
ZVAL_COPY_VALUE(op, &dst);
} else {
ZVAL_DOUBLE(op, 1.0);
}
break;
}
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_null(zval *op) /* {{{ */
{
if (Z_TYPE_P(op) == IS_OBJECT) {
if (Z_OBJ_HT_P(op)->cast_object) {
zval org;
ZVAL_COPY_VALUE(&org, op);
if (Z_OBJ_HT_P(op)->cast_object(&org, op, IS_NULL) == SUCCESS) {
zval_dtor(&org);
return;
}
ZVAL_COPY_VALUE(op, &org);
}
}
zval_ptr_dtor(op);
ZVAL_NULL(op);
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_boolean(zval *op) /* {{{ */
{
int tmp;
try_again:
switch (Z_TYPE_P(op)) {
case IS_FALSE:
case IS_TRUE:
break;
case IS_NULL:
ZVAL_FALSE(op);
break;
case IS_RESOURCE: {
zend_long l = (Z_RES_HANDLE_P(op) ? 1 : 0);
zval_ptr_dtor(op);
ZVAL_BOOL(op, l);
}
break;
case IS_LONG:
ZVAL_BOOL(op, Z_LVAL_P(op) ? 1 : 0);
break;
case IS_DOUBLE:
ZVAL_BOOL(op, Z_DVAL_P(op) ? 1 : 0);
break;
case IS_STRING:
{
zend_string *str = Z_STR_P(op);
if (ZSTR_LEN(str) == 0
|| (ZSTR_LEN(str) == 1 && ZSTR_VAL(str)[0] == '0')) {
ZVAL_FALSE(op);
} else {
ZVAL_TRUE(op);
}
zend_string_release(str);
}
break;
case IS_ARRAY:
tmp = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
zval_ptr_dtor(op);
ZVAL_BOOL(op, tmp);
break;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, _IS_BOOL, convert_to_boolean);
zval_dtor(op);
if (Z_TYPE(dst) == IS_FALSE || Z_TYPE(dst) == IS_TRUE) {
ZVAL_COPY_VALUE(op, &dst);
} else {
ZVAL_TRUE(op);
}
break;
}
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL _convert_to_cstring(zval *op ZEND_FILE_LINE_DC) /* {{{ */
{
if (Z_TYPE_P(op) == IS_DOUBLE) {
zend_string *str;
double dval = Z_DVAL_P(op);
str = zend_strpprintf(0, "%.*H", (int) EG(precision), dval);
ZVAL_NEW_STR(op, str);
} else {
_convert_to_string(op ZEND_FILE_LINE_CC);
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL _convert_to_string(zval *op ZEND_FILE_LINE_DC) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_UNDEF:
case IS_NULL:
case IS_FALSE: {
ZVAL_EMPTY_STRING(op);
break;
}
case IS_TRUE:
if (CG(one_char_string)['1']) {
ZVAL_INTERNED_STR(op, CG(one_char_string)['1']);
} else {
ZVAL_NEW_STR(op, zend_string_init("1", 1, 0));
}
break;
case IS_STRING:
break;
case IS_RESOURCE: {
char buf[sizeof("Resource id #") + MAX_LENGTH_OF_LONG];
int len = snprintf(buf, sizeof(buf), "Resource id #" ZEND_LONG_FMT, (zend_long)Z_RES_HANDLE_P(op));
zval_ptr_dtor(op);
ZVAL_NEW_STR(op, zend_string_init(buf, len, 0));
break;
}
case IS_LONG: {
ZVAL_NEW_STR(op, zend_long_to_str(Z_LVAL_P(op)));
break;
}
case IS_DOUBLE: {
zend_string *str;
double dval = Z_DVAL_P(op);
str = zend_strpprintf(0, "%.*G", (int) EG(precision), dval);
/* %G already handles removing trailing zeros from the fractional part, yay */
ZVAL_NEW_STR(op, str);
break;
}
case IS_ARRAY:
zend_error(E_NOTICE, "Array to string conversion");
zval_ptr_dtor(op);
ZVAL_NEW_STR(op, zend_string_init("Array", sizeof("Array")-1, 0));
break;
case IS_OBJECT: {
zval dst;
convert_object_to_type(op, &dst, IS_STRING, convert_to_string);
zval_dtor(op);
if (Z_TYPE(dst) == IS_STRING) {
ZVAL_COPY_VALUE(op, &dst);
} else {
ZVAL_NEW_STR(op, zend_string_init("Object", sizeof("Object")-1, 0));
}
break;
}
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
static void convert_scalar_to_array(zval *op) /* {{{ */
{
zval entry;
ZVAL_COPY_VALUE(&entry, op);
ZVAL_NEW_ARR(op);
zend_hash_init(Z_ARRVAL_P(op), 8, NULL, ZVAL_PTR_DTOR, 0);
zend_hash_index_add_new(Z_ARRVAL_P(op), 0, &entry);
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_array(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_ARRAY:
break;
/* OBJECTS_OPTIMIZE */
case IS_OBJECT:
if (Z_OBJCE_P(op) == zend_ce_closure) {
convert_scalar_to_array(op);
} else {
if (Z_OBJ_HT_P(op)->get_properties) {
HashTable *obj_ht = Z_OBJ_HT_P(op)->get_properties(op);
if (obj_ht) {
zval arr;
if (!Z_OBJCE_P(op)->default_properties_count &&
obj_ht == Z_OBJ_P(op)->properties &&
!ZEND_HASH_GET_APPLY_COUNT(Z_OBJ_P(op)->properties)) {
/* fast copy */
if (EXPECTED(Z_OBJ_P(op)->handlers == &std_object_handlers)) {
ZVAL_ARR(&arr, obj_ht);
if (EXPECTED(!(GC_FLAGS(Z_OBJ_P(op)->properties) & IS_ARRAY_IMMUTABLE))) {
GC_REFCOUNT(Z_OBJ_P(op)->properties)++;
}
} else {
ZVAL_ARR(&arr, zend_array_dup(obj_ht));
}
zval_dtor(op);
ZVAL_COPY_VALUE(op, &arr);
} else {
ZVAL_ARR(&arr, zend_array_dup(obj_ht));
zval_dtor(op);
ZVAL_COPY_VALUE(op, &arr);
}
return;
}
} else {
zval dst;
convert_object_to_type(op, &dst, IS_ARRAY, convert_to_array);
if (Z_TYPE(dst) == IS_ARRAY) {
zval_dtor(op);
ZVAL_COPY_VALUE(op, &dst);
return;
}
}
zval_dtor(op);
array_init(op);
}
break;
case IS_NULL:
ZVAL_NEW_ARR(op);
zend_hash_init(Z_ARRVAL_P(op), 8, NULL, ZVAL_PTR_DTOR, 0);
break;
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
default:
convert_scalar_to_array(op);
break;
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_object(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_ARRAY:
{
HashTable *ht = Z_ARR_P(op);
if (Z_IMMUTABLE_P(op)) {
/* TODO: try not to duplicate immutable arrays as well ??? */
ht = zend_array_dup(ht);
}
object_and_properties_init(op, zend_standard_class_def, ht);
break;
}
case IS_OBJECT:
break;
case IS_NULL:
object_init(op);
break;
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
default: {
zval tmp;
ZVAL_COPY_VALUE(&tmp, op);
object_init(op);
zend_hash_str_add_new(Z_OBJPROP_P(op), "scalar", sizeof("scalar")-1, &tmp);
break;
}
}
}
/* }}} */
ZEND_API void multi_convert_to_long_ex(int argc, ...) /* {{{ */
{
zval *arg;
va_list ap;
va_start(ap, argc);
while (argc--) {
arg = va_arg(ap, zval *);
convert_to_long_ex(arg);
}
va_end(ap);
}
/* }}} */
ZEND_API void multi_convert_to_double_ex(int argc, ...) /* {{{ */
{
zval *arg;
va_list ap;
va_start(ap, argc);
while (argc--) {
arg = va_arg(ap, zval *);
convert_to_double_ex(arg);
}
va_end(ap);
}
/* }}} */
ZEND_API void multi_convert_to_string_ex(int argc, ...) /* {{{ */
{
zval *arg;
va_list ap;
va_start(ap, argc);
while (argc--) {
arg = va_arg(ap, zval *);
convert_to_string_ex(arg);
}
va_end(ap);
}
/* }}} */
ZEND_API zend_long ZEND_FASTCALL _zval_get_long_func(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
return 0;
case IS_TRUE:
return 1;
case IS_RESOURCE:
return Z_RES_HANDLE_P(op);
case IS_LONG:
return Z_LVAL_P(op);
case IS_DOUBLE:
return zend_dval_to_lval(Z_DVAL_P(op));
case IS_STRING:
return ZEND_STRTOL(Z_STRVAL_P(op), NULL, 10);
case IS_ARRAY:
return zend_hash_num_elements(Z_ARRVAL_P(op)) ? 1 : 0;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_LONG, convert_to_long);
if (Z_TYPE(dst) == IS_LONG) {
return Z_LVAL(dst);
} else {
return 1;
}
}
case IS_REFERENCE:
op = Z_REFVAL_P(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
return 0;
}
/* }}} */
ZEND_API double ZEND_FASTCALL _zval_get_double_func(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
return 0.0;
case IS_TRUE:
return 1.0;
case IS_RESOURCE:
return (double) Z_RES_HANDLE_P(op);
case IS_LONG:
return (double) Z_LVAL_P(op);
case IS_DOUBLE:
return Z_DVAL_P(op);
case IS_STRING:
return zend_strtod(Z_STRVAL_P(op), NULL);
case IS_ARRAY:
return zend_hash_num_elements(Z_ARRVAL_P(op)) ? 1.0 : 0.0;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_DOUBLE, convert_to_double);
if (Z_TYPE(dst) == IS_DOUBLE) {
return Z_DVAL(dst);
} else {
return 1.0;
}
}
case IS_REFERENCE:
op = Z_REFVAL_P(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
return 0.0;
}
/* }}} */
ZEND_API zend_string* ZEND_FASTCALL _zval_get_string_func(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_UNDEF:
case IS_NULL:
case IS_FALSE:
return ZSTR_EMPTY_ALLOC();
case IS_TRUE:
if (CG(one_char_string)['1']) {
return CG(one_char_string)['1'];
} else {
return zend_string_init("1", 1, 0);
}
case IS_RESOURCE: {
char buf[sizeof("Resource id #") + MAX_LENGTH_OF_LONG];
int len;
len = snprintf(buf, sizeof(buf), "Resource id #" ZEND_LONG_FMT, (zend_long)Z_RES_HANDLE_P(op));
return zend_string_init(buf, len, 0);
}
case IS_LONG: {
return zend_long_to_str(Z_LVAL_P(op));
}
case IS_DOUBLE: {
return zend_strpprintf(0, "%.*G", (int) EG(precision), Z_DVAL_P(op));
}
case IS_ARRAY:
zend_error(E_NOTICE, "Array to string conversion");
return zend_string_init("Array", sizeof("Array")-1, 0);
case IS_OBJECT: {
zval tmp;
if (Z_OBJ_HT_P(op)->cast_object) {
if (Z_OBJ_HT_P(op)->cast_object(op, &tmp, IS_STRING) == SUCCESS) {
return Z_STR(tmp);
}
} else if (Z_OBJ_HT_P(op)->get) {
zval *z = Z_OBJ_HT_P(op)->get(op, &tmp);
if (Z_TYPE_P(z) != IS_OBJECT) {
zend_string *str = zval_get_string(z);
zval_ptr_dtor(z);
return str;
}
zval_ptr_dtor(z);
}
zend_error(EG(exception) ? E_ERROR : E_RECOVERABLE_ERROR, "Object of class %s could not be converted to string", ZSTR_VAL(Z_OBJCE_P(op)->name));
return ZSTR_EMPTY_ALLOC();
}
case IS_REFERENCE:
op = Z_REFVAL_P(op);
goto try_again;
case IS_STRING:
return zend_string_copy(Z_STR_P(op));
EMPTY_SWITCH_DEFAULT_CASE()
}
return NULL;
}
/* }}} */
ZEND_API int ZEND_FASTCALL add_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG): {
zend_long lval = Z_LVAL_P(op1) + Z_LVAL_P(op2);
/* check for overflow by comparing sign bits */
if ((Z_LVAL_P(op1) & LONG_SIGN_MASK) == (Z_LVAL_P(op2) & LONG_SIGN_MASK)
&& (Z_LVAL_P(op1) & LONG_SIGN_MASK) != (lval & LONG_SIGN_MASK)) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) + (double) Z_LVAL_P(op2));
} else {
ZVAL_LONG(result, lval);
}
return SUCCESS;
}
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) + Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) + ((double)Z_LVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) + Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_ARRAY, IS_ARRAY):
if ((result == op1) && (result == op2)) {
/* $a += $a */
return SUCCESS;
}
if (result != op1) {
ZVAL_DUP(result, op1);
}
zend_hash_merge(Z_ARRVAL_P(result), Z_ARRVAL_P(op2), zval_add_ref, 0);
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_ADD, add_function);
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
} else {
zend_throw_error(NULL, "Unsupported operand types");
return FAILURE; /* unknown datatype */
}
}
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL sub_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG): {
zend_long lval = Z_LVAL_P(op1) - Z_LVAL_P(op2);
/* check for overflow by comparing sign bits */
if ((Z_LVAL_P(op1) & LONG_SIGN_MASK) != (Z_LVAL_P(op2) & LONG_SIGN_MASK)
&& (Z_LVAL_P(op1) & LONG_SIGN_MASK) != (lval & LONG_SIGN_MASK)) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) - (double) Z_LVAL_P(op2));
} else {
ZVAL_LONG(result, lval);
}
return SUCCESS;
}
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) - Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) - ((double)Z_LVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) - Z_DVAL_P(op2));
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_SUB, sub_function);
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
} else {
zend_throw_error(NULL, "Unsupported operand types");
return FAILURE; /* unknown datatype */
}
}
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL mul_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG): {
zend_long overflow;
ZEND_SIGNED_MULTIPLY_LONG(Z_LVAL_P(op1),Z_LVAL_P(op2), Z_LVAL_P(result),Z_DVAL_P(result),overflow);
Z_TYPE_INFO_P(result) = overflow ? IS_DOUBLE : IS_LONG;
return SUCCESS;
}
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) * Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) * ((double)Z_LVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) * Z_DVAL_P(op2));
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_MUL, mul_function);
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
} else {
zend_throw_error(NULL, "Unsupported operand types");
return FAILURE; /* unknown datatype */
}
}
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL pow_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG):
if (Z_LVAL_P(op2) >= 0) {
zend_long l1 = 1, l2 = Z_LVAL_P(op1), i = Z_LVAL_P(op2);
if (i == 0) {
ZVAL_LONG(result, 1L);
return SUCCESS;
} else if (l2 == 0) {
ZVAL_LONG(result, 0);
return SUCCESS;
}
while (i >= 1) {
zend_long overflow;
double dval = 0.0;
if (i % 2) {
--i;
ZEND_SIGNED_MULTIPLY_LONG(l1, l2, l1, dval, overflow);
if (overflow) {
ZVAL_DOUBLE(result, dval * pow(l2, i));
return SUCCESS;
}
} else {
i /= 2;
ZEND_SIGNED_MULTIPLY_LONG(l2, l2, l2, dval, overflow);
if (overflow) {
ZVAL_DOUBLE(result, (double)l1 * pow(dval, i));
return SUCCESS;
}
}
}
/* i == 0 */
ZVAL_LONG(result, l1);
} else {
ZVAL_DOUBLE(result, pow((double)Z_LVAL_P(op1), (double)Z_LVAL_P(op2)));
}
return SUCCESS;
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
ZVAL_DOUBLE(result, pow((double)Z_LVAL_P(op1), Z_DVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
ZVAL_DOUBLE(result, pow(Z_DVAL_P(op1), (double)Z_LVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
ZVAL_DOUBLE(result, pow(Z_DVAL_P(op1), Z_DVAL_P(op2)));
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_POW, pow_function);
if (Z_TYPE_P(op1) == IS_ARRAY) {
ZVAL_LONG(result, 0);
return SUCCESS;
} else {
zendi_convert_scalar_to_number(op1, op1_copy, result);
}
if (Z_TYPE_P(op2) == IS_ARRAY) {
ZVAL_LONG(result, 1L);
return SUCCESS;
} else {
zendi_convert_scalar_to_number(op2, op2_copy, result);
}
converted = 1;
} else {
zend_throw_error(NULL, "Unsupported operand types");
return FAILURE;
}
}
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL div_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG):
if (Z_LVAL_P(op2) == 0) {
zend_error(E_WARNING, "Division by zero");
ZVAL_DOUBLE(result, ((double) Z_LVAL_P(op1) / (double) Z_LVAL_P(op2)));
return SUCCESS;
} else if (Z_LVAL_P(op2) == -1 && Z_LVAL_P(op1) == ZEND_LONG_MIN) {
/* Prevent overflow error/crash */
ZVAL_DOUBLE(result, (double) ZEND_LONG_MIN / -1);
return SUCCESS;
}
if (Z_LVAL_P(op1) % Z_LVAL_P(op2) == 0) { /* integer */
ZVAL_LONG(result, Z_LVAL_P(op1) / Z_LVAL_P(op2));
} else {
ZVAL_DOUBLE(result, ((double) Z_LVAL_P(op1)) / Z_LVAL_P(op2));
}
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
if (Z_LVAL_P(op2) == 0) {
zend_error(E_WARNING, "Division by zero");
}
ZVAL_DOUBLE(result, Z_DVAL_P(op1) / (double)Z_LVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
if (Z_DVAL_P(op2) == 0) {
zend_error(E_WARNING, "Division by zero");
}
ZVAL_DOUBLE(result, (double)Z_LVAL_P(op1) / Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
if (Z_DVAL_P(op2) == 0) {
zend_error(E_WARNING, "Division by zero");
}
ZVAL_DOUBLE(result, Z_DVAL_P(op1) / Z_DVAL_P(op2));
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_DIV, div_function);
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
} else {
zend_throw_error(NULL, "Unsupported operand types");
return FAILURE; /* unknown datatype */
}
}
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL mod_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_long op1_lval, op2_lval;
convert_op1_op2_long(op1, op1_lval, op2, op2_lval, ZEND_MOD, mod_function);
if (op1 == result) {
zval_dtor(result);
}
if (op2_lval == 0) {
/* modulus by zero */
if (EG(current_execute_data) && !CG(in_compilation)) {
zend_throw_exception_ex(zend_ce_division_by_zero_error, 0, "Modulo by zero");
} else {
zend_error_noreturn(E_ERROR, "Modulo by zero");
}
ZVAL_UNDEF(result);
return FAILURE;
}
if (op2_lval == -1) {
/* Prevent overflow error/crash if op1==LONG_MIN */
ZVAL_LONG(result, 0);
return SUCCESS;
}
ZVAL_LONG(result, op1_lval % op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL boolean_xor_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
int op1_val, op2_val;
do {
if (Z_TYPE_P(op1) == IS_FALSE) {
op1_val = 0;
} else if (EXPECTED(Z_TYPE_P(op1) == IS_TRUE)) {
op1_val = 1;
} else {
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
if (Z_TYPE_P(op1) == IS_FALSE) {
op1_val = 0;
break;
} else if (EXPECTED(Z_TYPE_P(op1) == IS_TRUE)) {
op1_val = 1;
break;
}
}
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(ZEND_BOOL_XOR, boolean_xor_function);
op1_val = zval_is_true(op1);
}
} while (0);
do {
if (Z_TYPE_P(op2) == IS_FALSE) {
op2_val = 0;
} else if (EXPECTED(Z_TYPE_P(op2) == IS_TRUE)) {
op2_val = 1;
} else {
if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
if (Z_TYPE_P(op2) == IS_FALSE) {
op2_val = 0;
break;
} else if (EXPECTED(Z_TYPE_P(op2) == IS_TRUE)) {
op2_val = 1;
break;
}
}
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(ZEND_BOOL_XOR);
op2_val = zval_is_true(op2);
}
} while (0);
ZVAL_BOOL(result, op1_val ^ op2_val);
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL boolean_not_function(zval *result, zval *op1) /* {{{ */
{
if (Z_TYPE_P(op1) < IS_TRUE) {
ZVAL_TRUE(result);
} else if (EXPECTED(Z_TYPE_P(op1) == IS_TRUE)) {
ZVAL_FALSE(result);
} else {
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
if (Z_TYPE_P(op1) < IS_TRUE) {
ZVAL_TRUE(result);
return SUCCESS;
} else if (EXPECTED(Z_TYPE_P(op1) == IS_TRUE)) {
ZVAL_FALSE(result);
return SUCCESS;
}
}
ZEND_TRY_UNARY_OBJECT_OPERATION(ZEND_BOOL_NOT);
ZVAL_BOOL(result, !zval_is_true(op1));
}
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL bitwise_not_function(zval *result, zval *op1) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op1)) {
case IS_LONG:
ZVAL_LONG(result, ~Z_LVAL_P(op1));
return SUCCESS;
case IS_DOUBLE:
ZVAL_LONG(result, ~zend_dval_to_lval(Z_DVAL_P(op1)));
return SUCCESS;
case IS_STRING: {
size_t i;
if (Z_STRLEN_P(op1) == 1) {
zend_uchar not = (zend_uchar) ~*Z_STRVAL_P(op1);
if (CG(one_char_string)[not]) {
ZVAL_INTERNED_STR(result, CG(one_char_string)[not]);
} else {
ZVAL_NEW_STR(result, zend_string_init((char *) &not, 1, 0));
}
} else {
ZVAL_NEW_STR(result, zend_string_alloc(Z_STRLEN_P(op1), 0));
for (i = 0; i < Z_STRLEN_P(op1); i++) {
Z_STRVAL_P(result)[i] = ~Z_STRVAL_P(op1)[i];
}
Z_STRVAL_P(result)[i] = 0;
}
return SUCCESS;
}
case IS_REFERENCE:
op1 = Z_REFVAL_P(op1);
goto try_again;
default:
ZEND_TRY_UNARY_OBJECT_OPERATION(ZEND_BW_NOT);
zend_throw_error(NULL, "Unsupported operand types");
return FAILURE;
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL bitwise_or_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_long op1_lval, op2_lval;
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG) && EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
ZVAL_LONG(result, Z_LVAL_P(op1) | Z_LVAL_P(op2));
return SUCCESS;
}
ZVAL_DEREF(op1);
ZVAL_DEREF(op2);
if (Z_TYPE_P(op1) == IS_STRING && EXPECTED(Z_TYPE_P(op2) == IS_STRING)) {
zval *longer, *shorter;
zend_string *str;
size_t i;
if (EXPECTED(Z_STRLEN_P(op1) >= Z_STRLEN_P(op2))) {
if (EXPECTED(Z_STRLEN_P(op1) == Z_STRLEN_P(op2)) && Z_STRLEN_P(op1) == 1) {
zend_uchar or = (zend_uchar) (*Z_STRVAL_P(op1) | *Z_STRVAL_P(op2));
if (CG(one_char_string)[or]) {
ZVAL_INTERNED_STR(result, CG(one_char_string)[or]);
} else {
ZVAL_NEW_STR(result, zend_string_init((char *) &or, 1, 0));
}
return SUCCESS;
}
longer = op1;
shorter = op2;
} else {
longer = op2;
shorter = op1;
}
str = zend_string_alloc(Z_STRLEN_P(longer), 0);
for (i = 0; i < Z_STRLEN_P(shorter); i++) {
ZSTR_VAL(str)[i] = Z_STRVAL_P(longer)[i] | Z_STRVAL_P(shorter)[i];
}
memcpy(ZSTR_VAL(str) + i, Z_STRVAL_P(longer) + i, Z_STRLEN_P(longer) - i + 1);
if (result==op1) {
zend_string_release(Z_STR_P(result));
}
ZVAL_NEW_STR(result, str);
return SUCCESS;
}
if (UNEXPECTED(Z_TYPE_P(op1) != IS_LONG)) {
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(ZEND_BW_OR, bitwise_or_function);
op1_lval = _zval_get_long_func(op1);
} else {
op1_lval = Z_LVAL_P(op1);
}
if (UNEXPECTED(Z_TYPE_P(op2) != IS_LONG)) {
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(ZEND_BW_OR);
op2_lval = _zval_get_long_func(op2);
} else {
op2_lval = Z_LVAL_P(op2);
}
if (op1 == result) {
zval_dtor(result);
}
ZVAL_LONG(result, op1_lval | op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL bitwise_and_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_long op1_lval, op2_lval;
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG) && EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
ZVAL_LONG(result, Z_LVAL_P(op1) & Z_LVAL_P(op2));
return SUCCESS;
}
ZVAL_DEREF(op1);
ZVAL_DEREF(op2);
if (Z_TYPE_P(op1) == IS_STRING && Z_TYPE_P(op2) == IS_STRING) {
zval *longer, *shorter;
zend_string *str;
size_t i;
if (EXPECTED(Z_STRLEN_P(op1) >= Z_STRLEN_P(op2))) {
if (EXPECTED(Z_STRLEN_P(op1) == Z_STRLEN_P(op2)) && Z_STRLEN_P(op1) == 1) {
zend_uchar and = (zend_uchar) (*Z_STRVAL_P(op1) & *Z_STRVAL_P(op2));
if (CG(one_char_string)[and]) {
ZVAL_INTERNED_STR(result, CG(one_char_string)[and]);
} else {
ZVAL_NEW_STR(result, zend_string_init((char *) &and, 1, 0));
}
return SUCCESS;
}
longer = op1;
shorter = op2;
} else {
longer = op2;
shorter = op1;
}
str = zend_string_alloc(Z_STRLEN_P(shorter), 0);
for (i = 0; i < Z_STRLEN_P(shorter); i++) {
ZSTR_VAL(str)[i] = Z_STRVAL_P(shorter)[i] & Z_STRVAL_P(longer)[i];
}
ZSTR_VAL(str)[i] = 0;
if (result==op1) {
zend_string_release(Z_STR_P(result));
}
ZVAL_NEW_STR(result, str);
return SUCCESS;
}
if (UNEXPECTED(Z_TYPE_P(op1) != IS_LONG)) {
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(ZEND_BW_AND, bitwise_and_function);
op1_lval = _zval_get_long_func(op1);
} else {
op1_lval = Z_LVAL_P(op1);
}
if (UNEXPECTED(Z_TYPE_P(op2) != IS_LONG)) {
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(ZEND_BW_AND);
op2_lval = _zval_get_long_func(op2);
} else {
op2_lval = Z_LVAL_P(op2);
}
if (op1 == result) {
zval_dtor(result);
}
ZVAL_LONG(result, op1_lval & op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL bitwise_xor_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_long op1_lval, op2_lval;
if (EXPECTED(Z_TYPE_P(op1) == IS_LONG) && EXPECTED(Z_TYPE_P(op2) == IS_LONG)) {
ZVAL_LONG(result, Z_LVAL_P(op1) ^ Z_LVAL_P(op2));
return SUCCESS;
}
ZVAL_DEREF(op1);
ZVAL_DEREF(op2);
if (Z_TYPE_P(op1) == IS_STRING && Z_TYPE_P(op2) == IS_STRING) {
zval *longer, *shorter;
zend_string *str;
size_t i;
if (EXPECTED(Z_STRLEN_P(op1) >= Z_STRLEN_P(op2))) {
if (EXPECTED(Z_STRLEN_P(op1) == Z_STRLEN_P(op2)) && Z_STRLEN_P(op1) == 1) {
zend_uchar xor = (zend_uchar) (*Z_STRVAL_P(op1) ^ *Z_STRVAL_P(op2));
if (CG(one_char_string)[xor]) {
ZVAL_INTERNED_STR(result, CG(one_char_string)[xor]);
} else {
ZVAL_NEW_STR(result, zend_string_init((char *) &xor, 1, 0));
}
return SUCCESS;
}
longer = op1;
shorter = op2;
} else {
longer = op2;
shorter = op1;
}
str = zend_string_alloc(Z_STRLEN_P(shorter), 0);
for (i = 0; i < Z_STRLEN_P(shorter); i++) {
ZSTR_VAL(str)[i] = Z_STRVAL_P(shorter)[i] ^ Z_STRVAL_P(longer)[i];
}
ZSTR_VAL(str)[i] = 0;
if (result==op1) {
zend_string_release(Z_STR_P(result));
}
ZVAL_NEW_STR(result, str);
return SUCCESS;
}
if (UNEXPECTED(Z_TYPE_P(op1) != IS_LONG)) {
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(ZEND_BW_XOR, bitwise_xor_function);
op1_lval = _zval_get_long_func(op1);
} else {
op1_lval = Z_LVAL_P(op1);
}
if (UNEXPECTED(Z_TYPE_P(op2) != IS_LONG)) {
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(ZEND_BW_XOR);
op2_lval = _zval_get_long_func(op2);
} else {
op2_lval = Z_LVAL_P(op2);
}
if (op1 == result) {
zval_dtor(result);
}
ZVAL_LONG(result, op1_lval ^ op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL shift_left_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_long op1_lval, op2_lval;
convert_op1_op2_long(op1, op1_lval, op2, op2_lval, ZEND_SL, shift_left_function);
if (op1 == result) {
zval_dtor(result);
}
/* prevent wrapping quirkiness on some processors where << 64 + x == << x */
if (UNEXPECTED((zend_ulong)op2_lval >= SIZEOF_ZEND_LONG * 8)) {
if (EXPECTED(op2_lval > 0)) {
ZVAL_LONG(result, 0);
return SUCCESS;
} else {
if (EG(current_execute_data) && !CG(in_compilation)) {
zend_throw_exception_ex(zend_ce_arithmetic_error, 0, "Bit shift by negative number");
} else {
zend_error_noreturn(E_ERROR, "Bit shift by negative number");
}
ZVAL_UNDEF(result);
return FAILURE;
}
}
ZVAL_LONG(result, op1_lval << op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL shift_right_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_long op1_lval, op2_lval;
convert_op1_op2_long(op1, op1_lval, op2, op2_lval, ZEND_SR, shift_right_function);
if (op1 == result) {
zval_dtor(result);
}
/* prevent wrapping quirkiness on some processors where >> 64 + x == >> x */
if (UNEXPECTED((zend_ulong)op2_lval >= SIZEOF_ZEND_LONG * 8)) {
if (EXPECTED(op2_lval > 0)) {
ZVAL_LONG(result, (op1_lval < 0) ? -1 : 0);
return SUCCESS;
} else {
if (EG(current_execute_data) && !CG(in_compilation)) {
zend_throw_exception_ex(zend_ce_arithmetic_error, 0, "Bit shift by negative number");
} else {
zend_error_noreturn(E_ERROR, "Bit shift by negative number");
}
ZVAL_UNDEF(result);
return FAILURE;
}
}
ZVAL_LONG(result, op1_lval >> op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL concat_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zval op1_copy, op2_copy;
int use_copy1 = 0, use_copy2 = 0;
do {
if (UNEXPECTED(Z_TYPE_P(op1) != IS_STRING)) {
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
if (Z_TYPE_P(op1) == IS_STRING) break;
}
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_CONCAT, concat_function);
use_copy1 = zend_make_printable_zval(op1, &op1_copy);
if (use_copy1) {
/* We have created a converted copy of op1. Therefore, op1 won't become the result so
* we have to free it.
*/
if (result == op1) {
zval_dtor(op1);
if (UNEXPECTED(op1 == op2)) {
op2 = &op1_copy;
}
}
op1 = &op1_copy;
}
}
} while (0);
do {
if (UNEXPECTED(Z_TYPE_P(op2) != IS_STRING)) {
if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
if (Z_TYPE_P(op2) == IS_STRING) break;
}
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(ZEND_CONCAT);
use_copy2 = zend_make_printable_zval(op2, &op2_copy);
if (use_copy2) {
op2 = &op2_copy;
}
}
} while (0);
{
size_t op1_len = Z_STRLEN_P(op1);
size_t op2_len = Z_STRLEN_P(op2);
size_t result_len = op1_len + op2_len;
zend_string *result_str;
if (UNEXPECTED(op1_len > SIZE_MAX - op2_len)) {
zend_throw_error(NULL, "String size overflow");
ZVAL_FALSE(result);
return FAILURE;
}
if (result == op1 && Z_REFCOUNTED_P(result)) {
/* special case, perform operations on result */
result_str = zend_string_extend(Z_STR_P(result), result_len, 0);
} else {
result_str = zend_string_alloc(result_len, 0);
memcpy(ZSTR_VAL(result_str), Z_STRVAL_P(op1), op1_len);
}
/* This has to happen first to account for the cases where result == op1 == op2 and
* the realloc is done. In this case this line will also update Z_STRVAL_P(op2) to
* point to the new string. The first op2_len bytes of result will still be the same. */
ZVAL_NEW_STR(result, result_str);
memcpy(ZSTR_VAL(result_str) + op1_len, Z_STRVAL_P(op2), op2_len);
ZSTR_VAL(result_str)[result_len] = '\0';
}
if (UNEXPECTED(use_copy1)) {
zval_dtor(op1);
}
if (UNEXPECTED(use_copy2)) {
zval_dtor(op2);
}
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL string_compare_function_ex(zval *op1, zval *op2, zend_bool case_insensitive) /* {{{ */
{
zend_string *str1 = zval_get_string(op1);
zend_string *str2 = zval_get_string(op2);
int ret;
if (case_insensitive) {
ret = zend_binary_strcasecmp_l(ZSTR_VAL(str1), ZSTR_LEN(str1), ZSTR_VAL(str2), ZSTR_LEN(str1));
} else {
ret = zend_binary_strcmp(ZSTR_VAL(str1), ZSTR_LEN(str1), ZSTR_VAL(str2), ZSTR_LEN(str2));
}
zend_string_release(str1);
zend_string_release(str2);
return ret;
}
/* }}} */
ZEND_API int ZEND_FASTCALL string_compare_function(zval *op1, zval *op2) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(op1) == IS_STRING) &&
EXPECTED(Z_TYPE_P(op2) == IS_STRING)) {
if (Z_STR_P(op1) == Z_STR_P(op2)) {
return 0;
} else {
return zend_binary_strcmp(Z_STRVAL_P(op1), Z_STRLEN_P(op1), Z_STRVAL_P(op2), Z_STRLEN_P(op2));
}
} else {
zend_string *str1 = zval_get_string(op1);
zend_string *str2 = zval_get_string(op2);
int ret = zend_binary_strcmp(ZSTR_VAL(str1), ZSTR_LEN(str1), ZSTR_VAL(str2), ZSTR_LEN(str2));
zend_string_release(str1);
zend_string_release(str2);
return ret;
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL string_case_compare_function(zval *op1, zval *op2) /* {{{ */
{
if (EXPECTED(Z_TYPE_P(op1) == IS_STRING) &&
EXPECTED(Z_TYPE_P(op2) == IS_STRING)) {
if (Z_STR_P(op1) == Z_STR_P(op2)) {
return 0;
} else {
return zend_binary_strcasecmp_l(Z_STRVAL_P(op1), Z_STRLEN_P(op1), Z_STRVAL_P(op2), Z_STRLEN_P(op2));
}
} else {
zend_string *str1 = zval_get_string(op1);
zend_string *str2 = zval_get_string(op2);
int ret = zend_binary_strcasecmp_l(ZSTR_VAL(str1), ZSTR_LEN(str1), ZSTR_VAL(str2), ZSTR_LEN(str1));
zend_string_release(str1);
zend_string_release(str2);
return ret;
}
}
/* }}} */
#if HAVE_STRCOLL
ZEND_API int ZEND_FASTCALL string_locale_compare_function(zval *op1, zval *op2) /* {{{ */
{
zend_string *str1 = zval_get_string(op1);
zend_string *str2 = zval_get_string(op2);
int ret = strcoll(ZSTR_VAL(str1), ZSTR_VAL(str2));
zend_string_release(str1);
zend_string_release(str2);
return ret;
}
/* }}} */
#endif
ZEND_API int ZEND_FASTCALL numeric_compare_function(zval *op1, zval *op2) /* {{{ */
{
double d1, d2;
d1 = zval_get_double(op1);
d2 = zval_get_double(op2);
return ZEND_NORMALIZE_BOOL(d1 - d2);
}
/* }}} */
static inline void zend_free_obj_get_result(zval *op) /* {{{ */
{
if (Z_REFCOUNTED_P(op)) {
if (Z_REFCOUNT_P(op) == 0) {
zval_dtor(op);
} else {
zval_ptr_dtor(op);
}
}
}
/* }}} */
static void ZEND_FASTCALL convert_compare_result_to_long(zval *result) /* {{{ */
{
if (Z_TYPE_P(result) == IS_DOUBLE) {
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_DVAL_P(result)));
} else {
convert_to_long(result);
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL compare_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
int ret;
int converted = 0;
zval op1_copy, op2_copy;
zval *op_free, tmp_free;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG):
ZVAL_LONG(result, Z_LVAL_P(op1)>Z_LVAL_P(op2)?1:(Z_LVAL_P(op1)<Z_LVAL_P(op2)?-1:0));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
Z_DVAL_P(result) = Z_DVAL_P(op1) - (double)Z_LVAL_P(op2);
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_DVAL_P(result)));
return SUCCESS;
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
Z_DVAL_P(result) = (double)Z_LVAL_P(op1) - Z_DVAL_P(op2);
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_DVAL_P(result)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
if (Z_DVAL_P(op1) == Z_DVAL_P(op2)) {
ZVAL_LONG(result, 0);
} else {
Z_DVAL_P(result) = Z_DVAL_P(op1) - Z_DVAL_P(op2);
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_DVAL_P(result)));
}
return SUCCESS;
case TYPE_PAIR(IS_ARRAY, IS_ARRAY):
ZVAL_LONG(result, zend_compare_arrays(op1, op2));
return SUCCESS;
case TYPE_PAIR(IS_NULL, IS_NULL):
case TYPE_PAIR(IS_NULL, IS_FALSE):
case TYPE_PAIR(IS_FALSE, IS_NULL):
case TYPE_PAIR(IS_FALSE, IS_FALSE):
case TYPE_PAIR(IS_TRUE, IS_TRUE):
ZVAL_LONG(result, 0);
return SUCCESS;
case TYPE_PAIR(IS_NULL, IS_TRUE):
ZVAL_LONG(result, -1);
return SUCCESS;
case TYPE_PAIR(IS_TRUE, IS_NULL):
ZVAL_LONG(result, 1);
return SUCCESS;
case TYPE_PAIR(IS_STRING, IS_STRING):
if (Z_STR_P(op1) == Z_STR_P(op2)) {
ZVAL_LONG(result, 0);
return SUCCESS;
}
ZVAL_LONG(result, zendi_smart_strcmp(Z_STR_P(op1), Z_STR_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_NULL, IS_STRING):
ZVAL_LONG(result, Z_STRLEN_P(op2) == 0 ? 0 : -1);
return SUCCESS;
case TYPE_PAIR(IS_STRING, IS_NULL):
ZVAL_LONG(result, Z_STRLEN_P(op1) == 0 ? 0 : 1);
return SUCCESS;
case TYPE_PAIR(IS_OBJECT, IS_NULL):
ZVAL_LONG(result, 1);
return SUCCESS;
case TYPE_PAIR(IS_NULL, IS_OBJECT):
ZVAL_LONG(result, -1);
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
continue;
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
continue;
}
if (Z_TYPE_P(op1) == IS_OBJECT && Z_OBJ_HANDLER_P(op1, compare)) {
ret = Z_OBJ_HANDLER_P(op1, compare)(result, op1, op2);
if (UNEXPECTED(Z_TYPE_P(result) != IS_LONG)) {
convert_compare_result_to_long(result);
}
return ret;
} else if (Z_TYPE_P(op2) == IS_OBJECT && Z_OBJ_HANDLER_P(op2, compare)) {
ret = Z_OBJ_HANDLER_P(op2, compare)(result, op1, op2);
if (UNEXPECTED(Z_TYPE_P(result) != IS_LONG)) {
convert_compare_result_to_long(result);
}
return ret;
}
if (Z_TYPE_P(op1) == IS_OBJECT && Z_TYPE_P(op2) == IS_OBJECT) {
if (Z_OBJ_P(op1) == Z_OBJ_P(op2)) {
/* object handles are identical, apparently this is the same object */
ZVAL_LONG(result, 0);
return SUCCESS;
}
if (Z_OBJ_HANDLER_P(op1, compare_objects) == Z_OBJ_HANDLER_P(op2, compare_objects)) {
ZVAL_LONG(result, Z_OBJ_HANDLER_P(op1, compare_objects)(op1, op2));
return SUCCESS;
}
}
if (Z_TYPE_P(op1) == IS_OBJECT) {
if (Z_OBJ_HT_P(op1)->get) {
zval rv;
op_free = Z_OBJ_HT_P(op1)->get(op1, &rv);
ret = compare_function(result, op_free, op2);
zend_free_obj_get_result(op_free);
return ret;
} else if (Z_TYPE_P(op2) != IS_OBJECT && Z_OBJ_HT_P(op1)->cast_object) {
ZVAL_UNDEF(&tmp_free);
if (Z_OBJ_HT_P(op1)->cast_object(op1, &tmp_free, ((Z_TYPE_P(op2) == IS_FALSE || Z_TYPE_P(op2) == IS_TRUE) ? _IS_BOOL : Z_TYPE_P(op2))) == FAILURE) {
ZVAL_LONG(result, 1);
zend_free_obj_get_result(&tmp_free);
return SUCCESS;
}
ret = compare_function(result, &tmp_free, op2);
zend_free_obj_get_result(&tmp_free);
return ret;
}
}
if (Z_TYPE_P(op2) == IS_OBJECT) {
if (Z_OBJ_HT_P(op2)->get) {
zval rv;
op_free = Z_OBJ_HT_P(op2)->get(op2, &rv);
ret = compare_function(result, op1, op_free);
zend_free_obj_get_result(op_free);
return ret;
} else if (Z_TYPE_P(op1) != IS_OBJECT && Z_OBJ_HT_P(op2)->cast_object) {
ZVAL_UNDEF(&tmp_free);
if (Z_OBJ_HT_P(op2)->cast_object(op2, &tmp_free, ((Z_TYPE_P(op1) == IS_FALSE || Z_TYPE_P(op1) == IS_TRUE) ? _IS_BOOL : Z_TYPE_P(op1))) == FAILURE) {
ZVAL_LONG(result, -1);
zend_free_obj_get_result(&tmp_free);
return SUCCESS;
}
ret = compare_function(result, op1, &tmp_free);
zend_free_obj_get_result(&tmp_free);
return ret;
} else if (Z_TYPE_P(op1) == IS_OBJECT) {
ZVAL_LONG(result, 1);
return SUCCESS;
}
}
if (!converted) {
if (Z_TYPE_P(op1) == IS_NULL || Z_TYPE_P(op1) == IS_FALSE) {
ZVAL_LONG(result, zval_is_true(op2) ? -1 : 0);
return SUCCESS;
} else if (Z_TYPE_P(op2) == IS_NULL || Z_TYPE_P(op2) == IS_FALSE) {
ZVAL_LONG(result, zval_is_true(op1) ? 1 : 0);
return SUCCESS;
} else if (Z_TYPE_P(op1) == IS_TRUE) {
ZVAL_LONG(result, zval_is_true(op2) ? 0 : 1);
return SUCCESS;
} else if (Z_TYPE_P(op2) == IS_TRUE) {
ZVAL_LONG(result, zval_is_true(op1) ? 0 : -1);
return SUCCESS;
} else {
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
}
} else if (Z_TYPE_P(op1)==IS_ARRAY) {
ZVAL_LONG(result, 1);
return SUCCESS;
} else if (Z_TYPE_P(op2)==IS_ARRAY) {
ZVAL_LONG(result, -1);
return SUCCESS;
} else if (Z_TYPE_P(op1)==IS_OBJECT) {
ZVAL_LONG(result, 1);
return SUCCESS;
} else if (Z_TYPE_P(op2)==IS_OBJECT) {
ZVAL_LONG(result, -1);
return SUCCESS;
} else {
ZVAL_LONG(result, 0);
return FAILURE;
}
}
}
}
/* }}} */
static int hash_zval_identical_function(zval *z1, zval *z2) /* {{{ */
{
zval result;
/* is_identical_function() returns 1 in case of identity and 0 in case
* of a difference;
* whereas this comparison function is expected to return 0 on identity,
* and non zero otherwise.
*/
ZVAL_DEREF(z1);
ZVAL_DEREF(z2);
if (is_identical_function(&result, z1, z2)==FAILURE) {
return 1;
}
return Z_TYPE(result) != IS_TRUE;
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_is_identical(zval *op1, zval *op2) /* {{{ */
{
if (Z_TYPE_P(op1) != Z_TYPE_P(op2)) {
return 0;
}
switch (Z_TYPE_P(op1)) {
case IS_NULL:
case IS_FALSE:
case IS_TRUE:
return 1;
case IS_LONG:
return (Z_LVAL_P(op1) == Z_LVAL_P(op2));
case IS_RESOURCE:
return (Z_RES_P(op1) == Z_RES_P(op2));
case IS_DOUBLE:
return (Z_DVAL_P(op1) == Z_DVAL_P(op2));
case IS_STRING:
return (Z_STR_P(op1) == Z_STR_P(op2) ||
(Z_STRLEN_P(op1) == Z_STRLEN_P(op2) &&
memcmp(Z_STRVAL_P(op1), Z_STRVAL_P(op2), Z_STRLEN_P(op1)) == 0));
case IS_ARRAY:
return (Z_ARRVAL_P(op1) == Z_ARRVAL_P(op2) ||
zend_hash_compare(Z_ARRVAL_P(op1), Z_ARRVAL_P(op2), (compare_func_t) hash_zval_identical_function, 1) == 0);
case IS_OBJECT:
return (Z_OBJ_P(op1) == Z_OBJ_P(op2) && Z_OBJ_HT_P(op1) == Z_OBJ_HT_P(op2));
default:
return 0;
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL is_identical_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_BOOL(result, zend_is_identical(op1, op2));
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL is_not_identical_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_BOOL(result, !zend_is_identical(op1, op2));
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL is_equal_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
if (compare_function(result, op1, op2) == FAILURE) {
return FAILURE;
}
ZVAL_BOOL(result, (Z_LVAL_P(result) == 0));
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL is_not_equal_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
if (compare_function(result, op1, op2) == FAILURE) {
return FAILURE;
}
ZVAL_BOOL(result, (Z_LVAL_P(result) != 0));
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL is_smaller_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
if (compare_function(result, op1, op2) == FAILURE) {
return FAILURE;
}
ZVAL_BOOL(result, (Z_LVAL_P(result) < 0));
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL is_smaller_or_equal_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
if (compare_function(result, op1, op2) == FAILURE) {
return FAILURE;
}
ZVAL_BOOL(result, (Z_LVAL_P(result) <= 0));
return SUCCESS;
}
/* }}} */
static zend_bool ZEND_FASTCALL instanceof_interface_only(const zend_class_entry *instance_ce, const zend_class_entry *ce) /* {{{ */
{
uint32_t i;
for (i = 0; i < instance_ce->num_interfaces; i++) {
if (instanceof_interface_only(instance_ce->interfaces[i], ce)) {
return 1;
}
}
return 0;
}
/* }}} */
static zend_always_inline zend_bool instanceof_class(const zend_class_entry *instance_ce, const zend_class_entry *ce) /* {{{ */
{
while (instance_ce) {
if (instance_ce == ce) {
return 1;
}
instance_ce = instance_ce->parent;
}
return 0;
}
/* }}} */
static zend_bool ZEND_FASTCALL instanceof_interface(const zend_class_entry *instance_ce, const zend_class_entry *ce) /* {{{ */
{
uint32_t i;
for (i = 0; i < instance_ce->num_interfaces; i++) {
if (instanceof_interface(instance_ce->interfaces[i], ce)) {
return 1;
}
}
return instanceof_class(instance_ce, ce);
}
/* }}} */
ZEND_API zend_bool ZEND_FASTCALL instanceof_function_ex(const zend_class_entry *instance_ce, const zend_class_entry *ce, zend_bool interfaces_only) /* {{{ */
{
if (ce->ce_flags & ZEND_ACC_INTERFACE) {
if (!interfaces_only) {
if (instanceof_interface_only(instance_ce, ce)) {
return 1;
}
} else {
return instanceof_interface(instance_ce, ce);
}
}
if (!interfaces_only) {
return instanceof_class(instance_ce, ce);
}
return 0;
}
/* }}} */
ZEND_API zend_bool ZEND_FASTCALL instanceof_function(const zend_class_entry *instance_ce, const zend_class_entry *ce) /* {{{ */
{
if (ce->ce_flags & ZEND_ACC_INTERFACE) {
return instanceof_interface(instance_ce, ce);
} else {
return instanceof_class(instance_ce, ce);
}
}
/* }}} */
#define LOWER_CASE 1
#define UPPER_CASE 2
#define NUMERIC 3
static void ZEND_FASTCALL increment_string(zval *str) /* {{{ */
{
int carry=0;
size_t pos=Z_STRLEN_P(str)-1;
char *s;
zend_string *t;
int last=0; /* Shut up the compiler warning */
int ch;
if (Z_STRLEN_P(str) == 0) {
zend_string_release(Z_STR_P(str));
if (CG(one_char_string)['1']) {
ZVAL_INTERNED_STR(str, CG(one_char_string)['1']);
} else {
Z_STR_P(str) = zend_string_init("1", sizeof("1")-1, 0);
Z_TYPE_INFO_P(str) = IS_STRING_EX;
}
return;
}
if (!Z_REFCOUNTED_P(str)) {
Z_STR_P(str) = zend_string_init(Z_STRVAL_P(str), Z_STRLEN_P(str), 0);
Z_TYPE_INFO_P(str) = IS_STRING_EX;
} else if (Z_REFCOUNT_P(str) > 1) {
Z_DELREF_P(str);
Z_STR_P(str) = zend_string_init(Z_STRVAL_P(str), Z_STRLEN_P(str), 0);
} else {
zend_string_forget_hash_val(Z_STR_P(str));
}
s = Z_STRVAL_P(str);
do {
ch = s[pos];
if (ch >= 'a' && ch <= 'z') {
if (ch == 'z') {
s[pos] = 'a';
carry=1;
} else {
s[pos]++;
carry=0;
}
last=LOWER_CASE;
} else if (ch >= 'A' && ch <= 'Z') {
if (ch == 'Z') {
s[pos] = 'A';
carry=1;
} else {
s[pos]++;
carry=0;
}
last=UPPER_CASE;
} else if (ch >= '0' && ch <= '9') {
if (ch == '9') {
s[pos] = '0';
carry=1;
} else {
s[pos]++;
carry=0;
}
last = NUMERIC;
} else {
carry=0;
break;
}
if (carry == 0) {
break;
}
} while (pos-- > 0);
if (carry) {
t = zend_string_alloc(Z_STRLEN_P(str)+1, 0);
memcpy(ZSTR_VAL(t) + 1, Z_STRVAL_P(str), Z_STRLEN_P(str));
ZSTR_VAL(t)[Z_STRLEN_P(str) + 1] = '\0';
switch (last) {
case NUMERIC:
ZSTR_VAL(t)[0] = '1';
break;
case UPPER_CASE:
ZSTR_VAL(t)[0] = 'A';
break;
case LOWER_CASE:
ZSTR_VAL(t)[0] = 'a';
break;
}
zend_string_free(Z_STR_P(str));
ZVAL_NEW_STR(str, t);
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL increment_function(zval *op1) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op1)) {
case IS_LONG:
fast_long_increment_function(op1);
break;
case IS_DOUBLE:
Z_DVAL_P(op1) = Z_DVAL_P(op1) + 1;
break;
case IS_NULL:
ZVAL_LONG(op1, 1);
break;
case IS_STRING: {
zend_long lval;
double dval;
switch (is_numeric_string(Z_STRVAL_P(op1), Z_STRLEN_P(op1), &lval, &dval, 0)) {
case IS_LONG:
zend_string_release(Z_STR_P(op1));
if (lval == ZEND_LONG_MAX) {
/* switch to double */
double d = (double)lval;
ZVAL_DOUBLE(op1, d+1);
} else {
ZVAL_LONG(op1, lval+1);
}
break;
case IS_DOUBLE:
zend_string_release(Z_STR_P(op1));
ZVAL_DOUBLE(op1, dval+1);
break;
default:
/* Perl style string increment */
increment_string(op1);
break;
}
}
break;
case IS_OBJECT:
if (Z_OBJ_HANDLER_P(op1, get)
&& Z_OBJ_HANDLER_P(op1, set)) {
/* proxy object */
zval rv;
zval *val;
val = Z_OBJ_HANDLER_P(op1, get)(op1, &rv);
Z_TRY_ADDREF_P(val);
increment_function(val);
Z_OBJ_HANDLER_P(op1, set)(op1, val);
zval_ptr_dtor(val);
} else if (Z_OBJ_HANDLER_P(op1, do_operation)) {
zval op2;
int res;
ZVAL_LONG(&op2, 1);
res = Z_OBJ_HANDLER_P(op1, do_operation)(ZEND_ADD, op1, op1, &op2);
zval_ptr_dtor(&op2);
return res;
}
return FAILURE;
case IS_REFERENCE:
op1 = Z_REFVAL_P(op1);
goto try_again;
default:
return FAILURE;
}
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL decrement_function(zval *op1) /* {{{ */
{
zend_long lval;
double dval;
try_again:
switch (Z_TYPE_P(op1)) {
case IS_LONG:
fast_long_decrement_function(op1);
break;
case IS_DOUBLE:
Z_DVAL_P(op1) = Z_DVAL_P(op1) - 1;
break;
case IS_STRING: /* Like perl we only support string increment */
if (Z_STRLEN_P(op1) == 0) { /* consider as 0 */
zend_string_release(Z_STR_P(op1));
ZVAL_LONG(op1, -1);
break;
}
switch (is_numeric_string(Z_STRVAL_P(op1), Z_STRLEN_P(op1), &lval, &dval, 0)) {
case IS_LONG:
zend_string_release(Z_STR_P(op1));
if (lval == ZEND_LONG_MIN) {
double d = (double)lval;
ZVAL_DOUBLE(op1, d-1);
} else {
ZVAL_LONG(op1, lval-1);
}
break;
case IS_DOUBLE:
zend_string_release(Z_STR_P(op1));
ZVAL_DOUBLE(op1, dval - 1);
break;
}
break;
case IS_OBJECT:
if (Z_OBJ_HANDLER_P(op1, get)
&& Z_OBJ_HANDLER_P(op1, set)) {
/* proxy object */
zval rv;
zval *val;
val = Z_OBJ_HANDLER_P(op1, get)(op1, &rv);
Z_TRY_ADDREF_P(val);
decrement_function(val);
Z_OBJ_HANDLER_P(op1, set)(op1, val);
zval_ptr_dtor(val);
} else if (Z_OBJ_HANDLER_P(op1, do_operation)) {
zval op2;
int res;
ZVAL_LONG(&op2, 1);
res = Z_OBJ_HANDLER_P(op1, do_operation)(ZEND_SUB, op1, op1, &op2);
zval_ptr_dtor(&op2);
return res;
}
return FAILURE;
case IS_REFERENCE:
op1 = Z_REFVAL_P(op1);
goto try_again;
default:
return FAILURE;
}
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_is_true(zval *op) /* {{{ */
{
return i_zend_is_true(op);
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_object_is_true(zval *op) /* {{{ */
{
if (Z_OBJ_HT_P(op)->cast_object) {
zval tmp;
if (Z_OBJ_HT_P(op)->cast_object(op, &tmp, _IS_BOOL) == SUCCESS) {
return Z_TYPE(tmp) == IS_TRUE;
}
zend_error(E_RECOVERABLE_ERROR, "Object of class %s could not be converted to boolean", ZSTR_VAL(Z_OBJ_P(op)->ce->name));
} else if (Z_OBJ_HT_P(op)->get) {
int result;
zval rv;
zval *tmp = Z_OBJ_HT_P(op)->get(op, &rv);
if (Z_TYPE_P(tmp) != IS_OBJECT) {
/* for safety - avoid loop */
result = i_zend_is_true(tmp);
zval_ptr_dtor(tmp);
return result;
}
}
return 1;
}
/* }}} */
#ifdef ZEND_USE_TOLOWER_L
ZEND_API void zend_update_current_locale(void) /* {{{ */
{
current_locale = _get_current_locale();
}
/* }}} */
#endif
ZEND_API char* ZEND_FASTCALL zend_str_tolower_copy(char *dest, const char *source, size_t length) /* {{{ */
{
register unsigned char *str = (unsigned char*)source;
register unsigned char *result = (unsigned char*)dest;
register unsigned char *end = str + length;
while (str < end) {
*result++ = zend_tolower_ascii(*str++);
}
*result = '\0';
return dest;
}
/* }}} */
ZEND_API char* ZEND_FASTCALL zend_str_tolower_dup(const char *source, size_t length) /* {{{ */
{
return zend_str_tolower_copy((char *)emalloc(length+1), source, length);
}
/* }}} */
ZEND_API void ZEND_FASTCALL zend_str_tolower(char *str, size_t length) /* {{{ */
{
register unsigned char *p = (unsigned char*)str;
register unsigned char *end = p + length;
while (p < end) {
*p = zend_tolower_ascii(*p);
p++;
}
}
/* }}} */
ZEND_API char* ZEND_FASTCALL zend_str_tolower_dup_ex(const char *source, size_t length) /* {{{ */
{
register const unsigned char *p = (const unsigned char*)source;
register const unsigned char *end = p + length;
while (p < end) {
if (*p != zend_tolower_ascii(*p)) {
char *res = (char*)emalloc(length + 1);
register unsigned char *r;
if (p != (const unsigned char*)source) {
memcpy(res, source, p - (const unsigned char*)source);
}
r = (unsigned char*)p + (res - source);
while (p < end) {
*r = zend_tolower_ascii(*p);
p++;
r++;
}
*r = '\0';
return res;
}
p++;
}
return NULL;
}
/* }}} */
ZEND_API zend_string* ZEND_FASTCALL zend_string_tolower(zend_string *str) /* {{{ */
{
register unsigned char *p = (unsigned char*)ZSTR_VAL(str);
register unsigned char *end = p + ZSTR_LEN(str);
while (p < end) {
if (*p != zend_tolower_ascii(*p)) {
zend_string *res = zend_string_alloc(ZSTR_LEN(str), 0);
register unsigned char *r;
if (p != (unsigned char*)ZSTR_VAL(str)) {
memcpy(ZSTR_VAL(res), ZSTR_VAL(str), p - (unsigned char*)ZSTR_VAL(str));
}
r = p + (ZSTR_VAL(res) - ZSTR_VAL(str));
while (p < end) {
*r = zend_tolower_ascii(*p);
p++;
r++;
}
*r = '\0';
return res;
}
p++;
}
return zend_string_copy(str);
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_strcmp(const char *s1, size_t len1, const char *s2, size_t len2) /* {{{ */
{
int retval;
if (s1 == s2) {
return 0;
}
retval = memcmp(s1, s2, MIN(len1, len2));
if (!retval) {
return (int)(len1 - len2);
} else {
return retval;
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_strncmp(const char *s1, size_t len1, const char *s2, size_t len2, size_t length) /* {{{ */
{
int retval;
if (s1 == s2) {
return 0;
}
retval = memcmp(s1, s2, MIN(length, MIN(len1, len2)));
if (!retval) {
return (int)(MIN(length, len1) - MIN(length, len2));
} else {
return retval;
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_strcasecmp(const char *s1, size_t len1, const char *s2, size_t len2) /* {{{ */
{
size_t len;
int c1, c2;
if (s1 == s2) {
return 0;
}
len = MIN(len1, len2);
while (len--) {
c1 = zend_tolower_ascii(*(unsigned char *)s1++);
c2 = zend_tolower_ascii(*(unsigned char *)s2++);
if (c1 != c2) {
return c1 - c2;
}
}
return (int)(len1 - len2);
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_strncasecmp(const char *s1, size_t len1, const char *s2, size_t len2, size_t length) /* {{{ */
{
size_t len;
int c1, c2;
if (s1 == s2) {
return 0;
}
len = MIN(length, MIN(len1, len2));
while (len--) {
c1 = zend_tolower_ascii(*(unsigned char *)s1++);
c2 = zend_tolower_ascii(*(unsigned char *)s2++);
if (c1 != c2) {
return c1 - c2;
}
}
return (int)(MIN(length, len1) - MIN(length, len2));
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_strcasecmp_l(const char *s1, size_t len1, const char *s2, size_t len2) /* {{{ */
{
size_t len;
int c1, c2;
if (s1 == s2) {
return 0;
}
len = MIN(len1, len2);
while (len--) {
c1 = zend_tolower((int)*(unsigned char *)s1++);
c2 = zend_tolower((int)*(unsigned char *)s2++);
if (c1 != c2) {
return c1 - c2;
}
}
return (int)(len1 - len2);
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_strncasecmp_l(const char *s1, size_t len1, const char *s2, size_t len2, size_t length) /* {{{ */
{
size_t len;
int c1, c2;
if (s1 == s2) {
return 0;
}
len = MIN(length, MIN(len1, len2));
while (len--) {
c1 = zend_tolower((int)*(unsigned char *)s1++);
c2 = zend_tolower((int)*(unsigned char *)s2++);
if (c1 != c2) {
return c1 - c2;
}
}
return (int)(MIN(length, len1) - MIN(length, len2));
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_zval_strcmp(zval *s1, zval *s2) /* {{{ */
{
return zend_binary_strcmp(Z_STRVAL_P(s1), Z_STRLEN_P(s1), Z_STRVAL_P(s2), Z_STRLEN_P(s2));
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_zval_strncmp(zval *s1, zval *s2, zval *s3) /* {{{ */
{
return zend_binary_strncmp(Z_STRVAL_P(s1), Z_STRLEN_P(s1), Z_STRVAL_P(s2), Z_STRLEN_P(s2), Z_LVAL_P(s3));
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_zval_strcasecmp(zval *s1, zval *s2) /* {{{ */
{
return zend_binary_strcasecmp_l(Z_STRVAL_P(s1), Z_STRLEN_P(s1), Z_STRVAL_P(s2), Z_STRLEN_P(s2));
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_binary_zval_strncasecmp(zval *s1, zval *s2, zval *s3) /* {{{ */
{
return zend_binary_strncasecmp_l(Z_STRVAL_P(s1), Z_STRLEN_P(s1), Z_STRVAL_P(s2), Z_STRLEN_P(s2), Z_LVAL_P(s3));
}
/* }}} */
ZEND_API zend_long ZEND_FASTCALL zendi_smart_strcmp(zend_string *s1, zend_string *s2) /* {{{ */
{
int ret1, ret2;
int oflow1, oflow2;
zend_long lval1 = 0, lval2 = 0;
double dval1 = 0.0, dval2 = 0.0;
if ((ret1 = is_numeric_string_ex(s1->val, s1->len, &lval1, &dval1, 0, &oflow1)) &&
(ret2 = is_numeric_string_ex(s2->val, s2->len, &lval2, &dval2, 0, &oflow2))) {
#if ZEND_ULONG_MAX == 0xFFFFFFFF
if (oflow1 != 0 && oflow1 == oflow2 && dval1 - dval2 == 0. &&
((oflow1 == 1 && dval1 > 9007199254740991. /*0x1FFFFFFFFFFFFF*/)
|| (oflow1 == -1 && dval1 < -9007199254740991.))) {
#else
if (oflow1 != 0 && oflow1 == oflow2 && dval1 - dval2 == 0.) {
#endif
/* both values are integers overflown to the same side, and the
* double comparison may have resulted in crucial accuracy lost */
goto string_cmp;
}
if ((ret1 == IS_DOUBLE) || (ret2 == IS_DOUBLE)) {
if (ret1 != IS_DOUBLE) {
if (oflow2) {
/* 2nd operand is integer > LONG_MAX (oflow2==1) or < LONG_MIN (-1) */
return -1 * oflow2;
}
dval1 = (double) lval1;
} else if (ret2 != IS_DOUBLE) {
if (oflow1) {
return oflow1;
}
dval2 = (double) lval2;
} else if (dval1 == dval2 && !zend_finite(dval1)) {
/* Both values overflowed and have the same sign,
* so a numeric comparison would be inaccurate */
goto string_cmp;
}
dval1 = dval1 - dval2;
return ZEND_NORMALIZE_BOOL(dval1);
} else { /* they both have to be long's */
return lval1 > lval2 ? 1 : (lval1 < lval2 ? -1 : 0);
}
} else {
int strcmp_ret;
string_cmp:
strcmp_ret = zend_binary_strcmp(s1->val, s1->len, s2->val, s2->len);
return ZEND_NORMALIZE_BOOL(strcmp_ret);
}
}
/* }}} */
static int hash_zval_compare_function(zval *z1, zval *z2) /* {{{ */
{
zval result;
if (compare_function(&result, z1, z2)==FAILURE) {
return 1;
}
return Z_LVAL(result);
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_compare_symbol_tables(HashTable *ht1, HashTable *ht2) /* {{{ */
{
return ht1 == ht2 ? 0 : zend_hash_compare(ht1, ht2, (compare_func_t) hash_zval_compare_function, 0);
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_compare_arrays(zval *a1, zval *a2) /* {{{ */
{
return zend_compare_symbol_tables(Z_ARRVAL_P(a1), Z_ARRVAL_P(a2));
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_compare_objects(zval *o1, zval *o2) /* {{{ */
{
if (Z_OBJ_P(o1) == Z_OBJ_P(o2)) {
return 0;
}
if (Z_OBJ_HT_P(o1)->compare_objects == NULL) {
return 1;
} else {
return Z_OBJ_HT_P(o1)->compare_objects(o1, o2);
}
}
/* }}} */
ZEND_API void ZEND_FASTCALL zend_locale_sprintf_double(zval *op ZEND_FILE_LINE_DC) /* {{{ */
{
zend_string *str;
str = zend_strpprintf(0, "%.*G", (int) EG(precision), (double)Z_DVAL_P(op));
ZVAL_NEW_STR(op, str);
}
/* }}} */
ZEND_API zend_string* ZEND_FASTCALL zend_long_to_str(zend_long num) /* {{{ */
{
char buf[MAX_LENGTH_OF_LONG + 1];
char *res = zend_print_long_to_buf(buf + sizeof(buf) - 1, num);
return zend_string_init(res, buf + sizeof(buf) - 1 - res, 0);
}
/* }}} */
ZEND_API zend_uchar ZEND_FASTCALL is_numeric_str_function(const zend_string *str, zend_long *lval, double *dval) /* {{{ */ {
return is_numeric_string_ex(ZSTR_VAL(str), ZSTR_LEN(str), lval, dval, -1, NULL);
}
/* }}} */
ZEND_API zend_uchar ZEND_FASTCALL _is_numeric_string_ex(const char *str, size_t length, zend_long *lval, double *dval, int allow_errors, int *oflow_info) /* {{{ */
{
const char *ptr;
int digits = 0, dp_or_e = 0;
double local_dval = 0.0;
zend_uchar type;
zend_long tmp_lval = 0;
int neg = 0;
if (!length) {
return 0;
}
if (oflow_info != NULL) {
*oflow_info = 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 == '-') {
neg = 1;
ptr++;
} else if (*ptr == '+') {
ptr++;
}
if (ZEND_IS_DIGIT(*ptr)) {
/* 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)) {
tmp_lval = tmp_lval * 10 + (*ptr) - '0';
continue;
} else 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 (digits >= MAX_LENGTH_OF_LONG) {
if (oflow_info != NULL) {
*oflow_info = *str == '-' ? -1 : 1;
}
dp_or_e = -1;
goto process_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, &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);
}
if (oflow_info != NULL) {
*oflow_info = *str == '-' ? -1 : 1;
}
return IS_DOUBLE;
}
}
if (lval) {
if (neg) {
tmp_lval = -tmp_lval;
}
*lval = tmp_lval;
}
return IS_LONG;
} else {
if (dval) {
*dval = local_dval;
}
return IS_DOUBLE;
}
}
/* }}} */
/*
* String matching - Sunday algorithm
* http://www.iti.fh-flensburg.de/lang/algorithmen/pattern/sundayen.htm
*/
static zend_always_inline void zend_memnstr_ex_pre(unsigned int td[], const char *needle, size_t needle_len, int reverse) /* {{{ */ {
int i;
for (i = 0; i < 256; i++) {
td[i] = needle_len + 1;
}
if (reverse) {
for (i = needle_len - 1; i >= 0; i--) {
td[(unsigned char)needle[i]] = i + 1;
}
} else {
for (i = 0; i < needle_len; i++) {
td[(unsigned char)needle[i]] = (int)needle_len - i;
}
}
}
/* }}} */
ZEND_API const char* ZEND_FASTCALL zend_memnstr_ex(const char *haystack, const char *needle, size_t needle_len, const char *end) /* {{{ */
{
unsigned int td[256];
register size_t i;
register const char *p;
if (needle_len == 0 || (end - haystack) == 0) {
return NULL;
}
zend_memnstr_ex_pre(td, needle, needle_len, 0);
p = haystack;
end -= needle_len;
while (p <= end) {
for (i = 0; i < needle_len; i++) {
if (needle[i] != p[i]) {
break;
}
}
if (i == needle_len) {
return p;
}
p += td[(unsigned char)(p[needle_len])];
}
return NULL;
}
/* }}} */
ZEND_API const char* ZEND_FASTCALL zend_memnrstr_ex(const char *haystack, const char *needle, size_t needle_len, const char *end) /* {{{ */
{
unsigned int td[256];
register size_t i;
register const char *p;
if (needle_len == 0 || (end - haystack) == 0) {
return NULL;
}
zend_memnstr_ex_pre(td, needle, needle_len, 1);
p = end;
p -= needle_len;
while (p >= haystack) {
for (i = 0; i < needle_len; i++) {
if (needle[i] != p[i]) {
break;
}
}
if (i == needle_len) {
return (const char *)p;
}
if (UNEXPECTED(p == haystack)) {
return NULL;
}
p -= td[(unsigned char)(p[-1])];
}
return NULL;
}
/* }}} */
#if !ZEND_DVAL_TO_LVAL_CAST_OK
# if SIZEOF_ZEND_LONG == 4
ZEND_API zend_long ZEND_FASTCALL zend_dval_to_lval_slow(double d)
{
double two_pow_32 = pow(2., 32.),
dmod;
dmod = fmod(d, two_pow_32);
if (dmod < 0) {
/* we're going to make this number positive; call ceil()
* to simulate rounding towards 0 of the negative number */
dmod = ceil(dmod);// + two_pow_32;
}
return (zend_long)(zend_ulong)dmod;
}
#else
ZEND_API zend_long ZEND_FASTCALL zend_dval_to_lval_slow(double d)
{
double two_pow_64 = pow(2., 64.),
dmod;
dmod = fmod(d, two_pow_64);
if (dmod < 0) {
/* no need to call ceil; original double must have had no
* fractional part, hence dmod does not have one either */
dmod += two_pow_64;
}
return (zend_long)(zend_ulong)dmod;
}
#endif
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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