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php-src/Zend/zend_operators.c
Ilija Tovilo 50127cef92
Merge branch 'PHP-8.1' into PHP-8.2 
* PHP-8.1:
  Endless recursion when using + on array in foreach
2023-05-01 13:21:32 +02:00

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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@php.net> |
| Zeev Suraski <zeev@php.net> |
| Dmitry Stogov <dmitry@php.net> |
+----------------------------------------------------------------------+
*/
#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"
#include <locale.h>
#ifdef HAVE_LANGINFO_H
# include <langinfo.h>
#endif
#ifdef __SSE2__
#include <emmintrin.h>
#endif
#if defined(ZEND_WIN32) && !defined(ZTS) && defined(_MSC_VER)
/* This performance improvement of tolower() on Windows gives 10-18% on bench.php */
#define ZEND_USE_TOLOWER_L 1
#endif
#ifdef ZEND_USE_TOLOWER_L
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))
#if __SSE2__
#define HAVE_BLOCKCONV
/* Common code for SSE2 accelerated character case conversion */
#define BLOCKCONV_INIT_RANGE(start, end) \
const __m128i blconv_start_minus_1 = _mm_set1_epi8((start) - 1); \
const __m128i blconv_end_plus_1 = _mm_set1_epi8((end) + 1);
#define BLOCKCONV_STRIDE sizeof(__m128i)
#define BLOCKCONV_INIT_DELTA(delta) \
const __m128i blconv_delta = _mm_set1_epi8(delta);
#define BLOCKCONV_LOAD(input) \
__m128i blconv_operand = _mm_loadu_si128((__m128i*)(input)); \
__m128i blconv_gt = _mm_cmpgt_epi8(blconv_operand, blconv_start_minus_1); \
__m128i blconv_lt = _mm_cmplt_epi8(blconv_operand, blconv_end_plus_1); \
__m128i blconv_mingle = _mm_and_si128(blconv_gt, blconv_lt);
#define BLOCKCONV_FOUND() _mm_movemask_epi8(blconv_mingle)
#define BLOCKCONV_STORE(dest) \
__m128i blconv_add = _mm_and_si128(blconv_mingle, blconv_delta); \
__m128i blconv_result = _mm_add_epi8(blconv_operand, blconv_add); \
_mm_storeu_si128((__m128i *)(dest), blconv_result);
#endif /* __SSE2__ */
ZEND_API const unsigned char zend_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
};
ZEND_API const unsigned char zend_toupper_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,
0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,
0x60,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,
0x50,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5a,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
};
/**
* Functions using locale lowercase:
zend_binary_strncasecmp_l
zend_binary_strcasecmp_l
* Functions using ascii lowercase:
string_compare_function_ex
string_case_compare_function
zend_str_tolower_copy
zend_str_tolower_dup
zend_str_tolower
zend_binary_strcasecmp
zend_binary_strncasecmp
*/
static zend_long ZEND_FASTCALL zend_atol_internal(const char *str, size_t str_len) /* {{{ */
{
if (!str_len) {
str_len = strlen(str);
}
/* Perform following multiplications on unsigned to avoid overflow UB.
* For now overflow is silently ignored -- not clear what else can be
* done here, especially as the final result of this function may be
* used in an unsigned context (e.g. "memory_limit=3G", which overflows
* zend_long on 32-bit, but not size_t). */
zend_ulong retval = (zend_ulong) ZEND_STRTOL(str, NULL, 0);
if (str_len>0) {
switch (str[str_len-1]) {
case 'g':
case 'G':
retval *= 1024;
ZEND_FALLTHROUGH;
case 'm':
case 'M':
retval *= 1024;
ZEND_FALLTHROUGH;
case 'k':
case 'K':
retval *= 1024;
break;
}
}
return (zend_long) retval;
}
/* }}} */
ZEND_API zend_long ZEND_FASTCALL zend_atol(const char *str, size_t str_len)
{
return zend_atol_internal(str, str_len);
}
ZEND_API int ZEND_FASTCALL zend_atoi(const char *str, size_t str_len)
{
return (int) zend_atol_internal(str, str_len);
}
/* {{{ convert_object_to_type: dst will be either ctype or UNDEF */
#define convert_object_to_type(op, dst, ctype) \
ZVAL_UNDEF(dst); \
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), dst, ctype) == FAILURE) { \
zend_error(E_WARNING, \
"Object of class %s could not be converted to %s", ZSTR_VAL(Z_OBJCE_P(op)->name),\
zend_get_type_by_const(ctype)); \
} \
/* }}} */
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_ex(str, 0);
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:
{
zval dst;
convert_object_to_type(op, &dst, _IS_NUMBER);
zval_ptr_dtor(op);
if (Z_TYPE(dst) == IS_LONG || Z_TYPE(dst) == IS_DOUBLE) {
ZVAL_COPY_VALUE(op, &dst);
} else {
ZVAL_LONG(op, 1);
}
}
break;
}
}
/* }}} */
static zend_never_inline zval* ZEND_FASTCALL _zendi_convert_scalar_to_number_silent(zval *op, zval *holder) /* {{{ */
{
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(holder, 0);
return holder;
case IS_TRUE:
ZVAL_LONG(holder, 1);
return holder;
case IS_STRING:
if ((Z_TYPE_INFO_P(holder) = is_numeric_string(Z_STRVAL_P(op), Z_STRLEN_P(op), &Z_LVAL_P(holder), &Z_DVAL_P(holder), 1)) == 0) {
ZVAL_LONG(holder, 0);
}
return holder;
case IS_RESOURCE:
ZVAL_LONG(holder, Z_RES_HANDLE_P(op));
return holder;
case IS_OBJECT:
convert_object_to_type(op, holder, _IS_NUMBER);
if (UNEXPECTED(EG(exception)) ||
UNEXPECTED(Z_TYPE_P(holder) != IS_LONG && Z_TYPE_P(holder) != IS_DOUBLE)) {
ZVAL_LONG(holder, 1);
}
return holder;
case IS_LONG:
case IS_DOUBLE:
default:
return op;
}
}
/* }}} */
static zend_never_inline zend_result ZEND_FASTCALL _zendi_try_convert_scalar_to_number(zval *op, zval *holder) /* {{{ */
{
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(holder, 0);
return SUCCESS;
case IS_TRUE:
ZVAL_LONG(holder, 1);
return SUCCESS;
case IS_STRING:
{
bool trailing_data = false;
/* For BC reasons we allow errors so that we can warn on leading numeric string */
if (0 == (Z_TYPE_INFO_P(holder) = is_numeric_string_ex(Z_STRVAL_P(op), Z_STRLEN_P(op),
&Z_LVAL_P(holder), &Z_DVAL_P(holder), /* allow errors */ true, NULL, &trailing_data))) {
/* Will lead to invalid OP type error */
return FAILURE;
}
if (UNEXPECTED(trailing_data)) {
zend_error(E_WARNING, "A non-numeric value encountered");
if (UNEXPECTED(EG(exception))) {
return FAILURE;
}
}
return SUCCESS;
}
case IS_OBJECT:
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), holder, _IS_NUMBER) == FAILURE
|| EG(exception)) {
return FAILURE;
}
ZEND_ASSERT(Z_TYPE_P(holder) == IS_LONG || Z_TYPE_P(holder) == IS_DOUBLE);
return SUCCESS;
case IS_RESOURCE:
case IS_ARRAY:
return FAILURE;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
static zend_always_inline zend_result zendi_try_convert_scalar_to_number(zval *op, zval *holder) /* {{{ */
{
if (Z_TYPE_P(op) == IS_LONG || Z_TYPE_P(op) == IS_DOUBLE) {
ZVAL_COPY_VALUE(holder, op);
return SUCCESS;
} else {
return _zendi_try_convert_scalar_to_number(op, holder);
}
}
/* }}} */
static zend_never_inline zend_long ZEND_FASTCALL zendi_try_get_long(zval *op, bool *failed) /* {{{ */
{
*failed = 0;
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
return 0;
case IS_TRUE:
return 1;
case IS_DOUBLE: {
double dval = Z_DVAL_P(op);
zend_long lval = zend_dval_to_lval(dval);
if (!zend_is_long_compatible(dval, lval)) {
zend_incompatible_double_to_long_error(dval);
if (UNEXPECTED(EG(exception))) {
*failed = 1;
}
}
return lval;
}
case IS_STRING:
{
zend_uchar type;
zend_long lval;
double dval;
bool trailing_data = false;
/* For BC reasons we allow errors so that we can warn on leading numeric string */
type = is_numeric_string_ex(Z_STRVAL_P(op), Z_STRLEN_P(op), &lval, &dval,
/* allow errors */ true, NULL, &trailing_data);
if (type == 0) {
*failed = 1;
return 0;
}
if (UNEXPECTED(trailing_data)) {
zend_error(E_WARNING, "A non-numeric value encountered");
if (UNEXPECTED(EG(exception))) {
*failed = 1;
}
}
if (EXPECTED(type == IS_LONG)) {
return lval;
} else {
/* Previously we used strtol here, not is_numeric_string,
* and strtol gives you LONG_MAX/_MIN on overflow.
* We use use saturating conversion to emulate strtol()'s
* behaviour.
*/
lval = zend_dval_to_lval_cap(dval);
if (!zend_is_long_compatible(dval, lval)) {
zend_incompatible_string_to_long_error(Z_STR_P(op));
if (UNEXPECTED(EG(exception))) {
*failed = 1;
}
}
return lval;
}
}
case IS_OBJECT:
{
zval dst;
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), &dst, IS_LONG) == FAILURE
|| EG(exception)) {
*failed = 1;
return 0;
}
ZEND_ASSERT(Z_TYPE(dst) == IS_LONG);
return Z_LVAL(dst);
}
case IS_RESOURCE:
case IS_ARRAY:
*failed = 1;
return 0;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
#define ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(opcode) \
if (UNEXPECTED(Z_TYPE_P(op1) == IS_OBJECT) \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op1, do_operation))) { \
if (EXPECTED(SUCCESS == Z_OBJ_HANDLER_P(op1, do_operation)(opcode, result, op1, op2))) { \
return SUCCESS; \
} \
}
#define ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(opcode) \
if (UNEXPECTED(Z_TYPE_P(op2) == IS_OBJECT) \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op2, do_operation)) \
&& EXPECTED(SUCCESS == Z_OBJ_HANDLER_P(op2, do_operation)(opcode, result, op1, op2))) { \
return SUCCESS; \
}
#define ZEND_TRY_BINARY_OBJECT_OPERATION(opcode) \
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(opcode) \
else \
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(opcode)
#define ZEND_TRY_UNARY_OBJECT_OPERATION(opcode) \
if (UNEXPECTED(Z_TYPE_P(op1) == IS_OBJECT) \
&& UNEXPECTED(Z_OBJ_HANDLER_P(op1, do_operation)) \
&& EXPECTED(SUCCESS == Z_OBJ_HANDLER_P(op1, do_operation)(opcode, result, op1, NULL))) { \
return SUCCESS; \
}
#define convert_op1_op2_long(op1, op1_lval, op2, op2_lval, result, opcode, sigil) \
do { \
if (UNEXPECTED(Z_TYPE_P(op1) != IS_LONG)) { \
bool failed; \
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(opcode); \
op1_lval = zendi_try_get_long(op1, &failed); \
if (UNEXPECTED(failed)) { \
zend_binop_error(sigil, op1, op2); \
if (result != op1) { \
ZVAL_UNDEF(result); \
} \
return FAILURE; \
} \
} else { \
op1_lval = Z_LVAL_P(op1); \
} \
} while (0); \
do { \
if (UNEXPECTED(Z_TYPE_P(op2) != IS_LONG)) { \
bool failed; \
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(opcode); \
op2_lval = zendi_try_get_long(op2, &failed); \
if (UNEXPECTED(failed)) { \
zend_binop_error(sigil, op1, op2); \
if (result != op1) { \
ZVAL_UNDEF(result); \
} \
return FAILURE; \
} \
} else { \
op2_lval = Z_LVAL_P(op2); \
} \
} while (0);
ZEND_API void ZEND_FASTCALL convert_to_long(zval *op) /* {{{ */
{
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, zval_get_long(op));
zend_string_release_ex(str, 0);
}
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);
zval_ptr_dtor(op);
if (Z_TYPE(dst) == IS_LONG) {
ZVAL_LONG(op, Z_LVAL(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_ex(str, 0);
}
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);
zval_ptr_dtor(op);
if (Z_TYPE(dst) == IS_DOUBLE) {
ZVAL_DOUBLE(op, Z_DVAL(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) /* {{{ */
{
zval_ptr_dtor(op);
ZVAL_NULL(op);
}
/* }}} */
ZEND_API void ZEND_FASTCALL convert_to_boolean(zval *op) /* {{{ */
{
bool 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_ex(str, 0);
}
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);
zval_ptr_dtor(op);
if (Z_TYPE_INFO(dst) == IS_FALSE || Z_TYPE_INFO(dst) == IS_TRUE) {
Z_TYPE_INFO_P(op) = Z_TYPE_INFO(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_string(zval *op) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_UNDEF:
case IS_NULL:
case IS_FALSE: {
ZVAL_EMPTY_STRING(op);
break;
}
case IS_TRUE:
ZVAL_CHAR(op, '1');
break;
case IS_STRING:
break;
case IS_RESOURCE: {
zend_string *str = zend_strpprintf(0, "Resource id #" ZEND_LONG_FMT, (zend_long)Z_RES_HANDLE_P(op));
zval_ptr_dtor(op);
ZVAL_NEW_STR(op, str);
break;
}
case IS_LONG:
ZVAL_STR(op, zend_long_to_str(Z_LVAL_P(op)));
break;
case IS_DOUBLE:
ZVAL_NEW_STR(op, zend_double_to_str(Z_DVAL_P(op)));
break;
case IS_ARRAY:
zend_error(E_WARNING, "Array to string conversion");
zval_ptr_dtor(op);
ZVAL_INTERNED_STR(op, ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED));
break;
case IS_OBJECT: {
zval tmp;
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), &tmp, IS_STRING) == SUCCESS) {
zval_ptr_dtor(op);
ZVAL_COPY_VALUE(op, &tmp);
return;
}
if (!EG(exception)) {
zend_throw_error(NULL, "Object of class %s could not be converted to string", ZSTR_VAL(Z_OBJCE_P(op)->name));
}
zval_ptr_dtor(op);
ZVAL_EMPTY_STRING(op);
break;
}
case IS_REFERENCE:
zend_unwrap_reference(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API bool ZEND_FASTCALL _try_convert_to_string(zval *op) /* {{{ */
{
zend_string *str;
ZEND_ASSERT(Z_TYPE_P(op) != IS_STRING);
str = zval_try_get_string_func(op);
if (UNEXPECTED(!str)) {
return 0;
}
zval_ptr_dtor(op);
ZVAL_STR(op, str);
return 1;
}
/* }}} */
static void convert_scalar_to_array(zval *op) /* {{{ */
{
HashTable *ht = zend_new_array(1);
zend_hash_index_add_new(ht, 0, op);
ZVAL_ARR(op, ht);
}
/* }}} */
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_P(op)->properties == NULL
&& Z_OBJ_HT_P(op)->get_properties_for == NULL
&& Z_OBJ_HT_P(op)->get_properties == zend_std_get_properties) {
/* Optimized version without rebuilding properties HashTable */
HashTable *ht = zend_std_build_object_properties_array(Z_OBJ_P(op));
OBJ_RELEASE(Z_OBJ_P(op));
ZVAL_ARR(op, ht);
} else {
HashTable *obj_ht = zend_get_properties_for(op, ZEND_PROP_PURPOSE_ARRAY_CAST);
if (obj_ht) {
HashTable *new_obj_ht = zend_proptable_to_symtable(obj_ht,
(Z_OBJCE_P(op)->default_properties_count ||
Z_OBJ_P(op)->handlers != &std_object_handlers ||
GC_IS_RECURSIVE(obj_ht)));
zval_ptr_dtor(op);
ZVAL_ARR(op, new_obj_ht);
zend_release_properties(obj_ht);
} else {
zval_ptr_dtor(op);
/*ZVAL_EMPTY_ARRAY(op);*/
array_init(op);
}
}
break;
case IS_NULL:
/*ZVAL_EMPTY_ARRAY(op);*/
array_init(op);
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 = zend_symtable_to_proptable(Z_ARR_P(op));
zend_object *obj;
if (GC_FLAGS(ht) & IS_ARRAY_IMMUTABLE) {
/* TODO: try not to duplicate immutable arrays as well ??? */
ht = zend_array_dup(ht);
} else if (ht != Z_ARR_P(op)) {
zval_ptr_dtor(op);
} else {
GC_DELREF(ht);
}
obj = zend_objects_new(zend_standard_class_def);
obj->properties = ht;
ZVAL_OBJ(op, obj);
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_add_new(Z_OBJPROP_P(op), ZSTR_KNOWN(ZEND_STR_SCALAR), &tmp);
break;
}
}
}
/* }}} */
ZEND_API void ZEND_COLD zend_incompatible_double_to_long_error(double d)
{
zend_error_unchecked(E_DEPRECATED, "Implicit conversion from float %.*H to int loses precision", -1, d);
}
ZEND_API void ZEND_COLD zend_incompatible_string_to_long_error(const zend_string *s)
{
zend_error(E_DEPRECATED, "Implicit conversion from float-string \"%s\" to int loses precision", ZSTR_VAL(s));
}
ZEND_API zend_long ZEND_FASTCALL zval_get_long_func(zval *op, bool is_strict) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_UNDEF:
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: {
double dval = Z_DVAL_P(op);
zend_long lval = zend_dval_to_lval(dval);
if (UNEXPECTED(is_strict)) {
if (!zend_is_long_compatible(dval, lval)) {
zend_incompatible_double_to_long_error(dval);
}
}
return lval;
}
case IS_STRING:
{
zend_uchar type;
zend_long lval;
double dval;
if (0 == (type = is_numeric_string(Z_STRVAL_P(op), Z_STRLEN_P(op), &lval, &dval, true))) {
return 0;
} else if (EXPECTED(type == IS_LONG)) {
return lval;
} else {
/* Previously we used strtol here, not is_numeric_string,
* and strtol gives you LONG_MAX/_MIN on overflow.
* We use saturating conversion to emulate strtol()'s
* behaviour.
*/
/* Most usages are expected to not be (int) casts */
lval = zend_dval_to_lval_cap(dval);
if (UNEXPECTED(is_strict)) {
if (!zend_is_long_compatible(dval, lval)) {
zend_incompatible_string_to_long_error(Z_STR_P(op));
}
}
return lval;
}
}
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);
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);
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;
}
/* }}} */
static zend_always_inline zend_string* __zval_get_string_func(zval *op, bool try) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_UNDEF:
case IS_NULL:
case IS_FALSE:
return ZSTR_EMPTY_ALLOC();
case IS_TRUE:
return ZSTR_CHAR('1');
case IS_RESOURCE:
return zend_strpprintf(0, "Resource id #" ZEND_LONG_FMT, (zend_long)Z_RES_HANDLE_P(op));
case IS_LONG:
return zend_long_to_str(Z_LVAL_P(op));
case IS_DOUBLE:
return zend_double_to_str(Z_DVAL_P(op));
case IS_ARRAY:
zend_error(E_WARNING, "Array to string conversion");
return (try && UNEXPECTED(EG(exception))) ?
NULL : ZSTR_KNOWN(ZEND_STR_ARRAY_CAPITALIZED);
case IS_OBJECT: {
zval tmp;
if (Z_OBJ_HT_P(op)->cast_object(Z_OBJ_P(op), &tmp, IS_STRING) == SUCCESS) {
return Z_STR(tmp);
}
if (!EG(exception)) {
zend_throw_error(NULL, "Object of class %s could not be converted to string", ZSTR_VAL(Z_OBJCE_P(op)->name));
}
return try ? NULL : 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 zend_string* ZEND_FASTCALL zval_get_string_func(zval *op) /* {{{ */
{
return __zval_get_string_func(op, 0);
}
/* }}} */
ZEND_API zend_string* ZEND_FASTCALL zval_try_get_string_func(zval *op) /* {{{ */
{
return __zval_get_string_func(op, 1);
}
/* }}} */
static ZEND_COLD zend_never_inline void ZEND_FASTCALL zend_binop_error(const char *operator, zval *op1, zval *op2) /* {{{ */ {
if (EG(exception)) {
return;
}
zend_type_error("Unsupported operand types: %s %s %s",
zend_zval_type_name(op1), operator, zend_zval_type_name(op2));
}
/* }}} */
static zend_never_inline void ZEND_FASTCALL add_function_array(zval *result, zval *op1, zval *op2) /* {{{ */
{
if (result == op1 && Z_ARR_P(op1) == Z_ARR_P(op2)) {
/* $a += $a */
return;
}
if (result != op1) {
ZVAL_ARR(result, zend_array_dup(Z_ARR_P(op1)));
} else {
SEPARATE_ARRAY(result);
}
zend_hash_merge(Z_ARRVAL_P(result), Z_ARRVAL_P(op2), zval_add_ref, 0);
}
/* }}} */
static zend_always_inline zend_result add_function_fast(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_uchar type_pair = TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2));
if (EXPECTED(type_pair == TYPE_PAIR(IS_LONG, IS_LONG))) {
fast_long_add_function(result, op1, op2);
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_DOUBLE))) {
ZVAL_DOUBLE(result, Z_DVAL_P(op1) + Z_DVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_LONG, IS_DOUBLE))) {
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) + Z_DVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_LONG))) {
ZVAL_DOUBLE(result, Z_DVAL_P(op1) + ((double)Z_LVAL_P(op2)));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_ARRAY, IS_ARRAY))) {
add_function_array(result, op1, op2);
return SUCCESS;
} else {
return FAILURE;
}
} /* }}} */
static zend_never_inline zend_result ZEND_FASTCALL add_function_slow(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_DEREF(op1);
ZVAL_DEREF(op2);
if (add_function_fast(result, op1, op2) == SUCCESS) {
return SUCCESS;
}
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_ADD);
zval op1_copy, op2_copy;
if (UNEXPECTED(zendi_try_convert_scalar_to_number(op1, &op1_copy) == FAILURE)
|| UNEXPECTED(zendi_try_convert_scalar_to_number(op2, &op2_copy) == FAILURE)) {
zend_binop_error("+", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
if (result == op1) {
zval_ptr_dtor(result);
}
if (add_function_fast(result, &op1_copy, &op2_copy) == SUCCESS) {
return SUCCESS;
}
ZEND_ASSERT(0 && "Operation must succeed");
return FAILURE;
} /* }}} */
ZEND_API zend_result ZEND_FASTCALL add_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
if (add_function_fast(result, op1, op2) == SUCCESS) {
return SUCCESS;
} else {
return add_function_slow(result, op1, op2);
}
}
/* }}} */
static zend_always_inline zend_result sub_function_fast(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_uchar type_pair = TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2));
if (EXPECTED(type_pair == TYPE_PAIR(IS_LONG, IS_LONG))) {
fast_long_sub_function(result, op1, op2);
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_DOUBLE))) {
ZVAL_DOUBLE(result, Z_DVAL_P(op1) - Z_DVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_LONG, IS_DOUBLE))) {
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) - Z_DVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_LONG))) {
ZVAL_DOUBLE(result, Z_DVAL_P(op1) - ((double)Z_LVAL_P(op2)));
return SUCCESS;
} else {
return FAILURE;
}
}
/* }}} */
static zend_never_inline zend_result ZEND_FASTCALL sub_function_slow(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_DEREF(op1);
ZVAL_DEREF(op2);
if (sub_function_fast(result, op1, op2) == SUCCESS) {
return SUCCESS;
}
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_SUB);
zval op1_copy, op2_copy;
if (UNEXPECTED(zendi_try_convert_scalar_to_number(op1, &op1_copy) == FAILURE)
|| UNEXPECTED(zendi_try_convert_scalar_to_number(op2, &op2_copy) == FAILURE)) {
zend_binop_error("-", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
if (result == op1) {
zval_ptr_dtor(result);
}
if (sub_function_fast(result, &op1_copy, &op2_copy) == SUCCESS) {
return SUCCESS;
}
ZEND_ASSERT(0 && "Operation must succeed");
return FAILURE;
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL sub_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
if (sub_function_fast(result, op1, op2) == SUCCESS) {
return SUCCESS;
} else {
return sub_function_slow(result, op1, op2);
}
}
/* }}} */
static zend_always_inline zend_result mul_function_fast(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_uchar type_pair = TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2));
if (EXPECTED(type_pair == 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;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_DOUBLE))) {
ZVAL_DOUBLE(result, Z_DVAL_P(op1) * Z_DVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_LONG, IS_DOUBLE))) {
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) * Z_DVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_LONG))) {
ZVAL_DOUBLE(result, Z_DVAL_P(op1) * ((double)Z_LVAL_P(op2)));
return SUCCESS;
} else {
return FAILURE;
}
}
/* }}} */
static zend_never_inline zend_result ZEND_FASTCALL mul_function_slow(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_DEREF(op1);
ZVAL_DEREF(op2);
if (mul_function_fast(result, op1, op2) == SUCCESS) {
return SUCCESS;
}
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_MUL);
zval op1_copy, op2_copy;
if (UNEXPECTED(zendi_try_convert_scalar_to_number(op1, &op1_copy) == FAILURE)
|| UNEXPECTED(zendi_try_convert_scalar_to_number(op2, &op2_copy) == FAILURE)) {
zend_binop_error("*", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
if (result == op1) {
zval_ptr_dtor(result);
}
if (mul_function_fast(result, &op1_copy, &op2_copy) == SUCCESS) {
return SUCCESS;
}
ZEND_ASSERT(0 && "Operation must succeed");
return FAILURE;
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL mul_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
if (mul_function_fast(result, op1, op2) == SUCCESS) {
return SUCCESS;
} else {
return mul_function_slow(result, op1, op2);
}
}
/* }}} */
static zend_result ZEND_FASTCALL pow_function_base(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_uchar type_pair = TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2));
if (EXPECTED(type_pair == 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;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_DOUBLE))) {
ZVAL_DOUBLE(result, pow(Z_DVAL_P(op1), Z_DVAL_P(op2)));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_LONG, IS_DOUBLE))) {
ZVAL_DOUBLE(result, pow((double)Z_LVAL_P(op1), Z_DVAL_P(op2)));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_LONG))) {
ZVAL_DOUBLE(result, pow(Z_DVAL_P(op1), (double)Z_LVAL_P(op2)));
return SUCCESS;
} else {
return FAILURE;
}
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL pow_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_DEREF(op1);
ZVAL_DEREF(op2);
if (pow_function_base(result, op1, op2) == SUCCESS) {
return SUCCESS;
}
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_POW);
zval op1_copy, op2_copy;
if (UNEXPECTED(zendi_try_convert_scalar_to_number(op1, &op1_copy) == FAILURE)
|| UNEXPECTED(zendi_try_convert_scalar_to_number(op2, &op2_copy) == FAILURE)) {
zend_binop_error("**", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
if (result == op1) {
zval_ptr_dtor(result);
}
if (pow_function_base(result, &op1_copy, &op2_copy) == SUCCESS) {
return SUCCESS;
}
ZEND_ASSERT(0 && "Operation must succeed");
return FAILURE;
}
/* }}} */
/* Returns SUCCESS/TYPES_NOT_HANDLED/DIV_BY_ZERO */
#define TYPES_NOT_HANDLED 1
#define DIV_BY_ZERO 2
static int ZEND_FASTCALL div_function_base(zval *result, zval *op1, zval *op2) /* {{{ */
{
zend_uchar type_pair = TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2));
if (EXPECTED(type_pair == TYPE_PAIR(IS_LONG, IS_LONG))) {
if (Z_LVAL_P(op2) == 0) {
return DIV_BY_ZERO;
} 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;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_DOUBLE))) {
if (Z_DVAL_P(op2) == 0) {
return DIV_BY_ZERO;
}
ZVAL_DOUBLE(result, Z_DVAL_P(op1) / Z_DVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_DOUBLE, IS_LONG))) {
if (Z_LVAL_P(op2) == 0) {
return DIV_BY_ZERO;
}
ZVAL_DOUBLE(result, Z_DVAL_P(op1) / (double)Z_LVAL_P(op2));
return SUCCESS;
} else if (EXPECTED(type_pair == TYPE_PAIR(IS_LONG, IS_DOUBLE))) {
if (Z_DVAL_P(op2) == 0) {
return DIV_BY_ZERO;
}
ZVAL_DOUBLE(result, (double)Z_LVAL_P(op1) / Z_DVAL_P(op2));
return SUCCESS;
} else {
return TYPES_NOT_HANDLED;
}
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL div_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_DEREF(op1);
ZVAL_DEREF(op2);
int retval = div_function_base(result, op1, op2);
if (EXPECTED(retval == SUCCESS)) {
return SUCCESS;
}
if (UNEXPECTED(retval == DIV_BY_ZERO)) {
goto div_by_zero;
}
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_DIV);
zval result_copy, op1_copy, op2_copy;
if (UNEXPECTED(zendi_try_convert_scalar_to_number(op1, &op1_copy) == FAILURE)
|| UNEXPECTED(zendi_try_convert_scalar_to_number(op2, &op2_copy) == FAILURE)) {
zend_binop_error("/", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
retval = div_function_base(&result_copy, &op1_copy, &op2_copy);
if (retval == SUCCESS) {
if (result == op1) {
zval_ptr_dtor(result);
}
ZVAL_COPY_VALUE(result, &result_copy);
return SUCCESS;
}
div_by_zero:
ZEND_ASSERT(retval == DIV_BY_ZERO && "TYPES_NOT_HANDLED should not occur here");
if (result != op1) {
ZVAL_UNDEF(result);
}
zend_throw_error(zend_ce_division_by_zero_error, "Division by zero");
return FAILURE;
}
/* }}} */
ZEND_API zend_result 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, result, ZEND_MOD, "%");
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");
}
if (op1 != result) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
if (op1 == result) {
zval_ptr_dtor(result);
}
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 zend_result 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);
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 zend_result 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 zend_result 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: {
zend_long lval = zend_dval_to_lval(Z_DVAL_P(op1));
if (!zend_is_long_compatible(Z_DVAL_P(op1), lval)) {
zend_incompatible_double_to_long_error(Z_DVAL_P(op1));
if (EG(exception)) {
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
}
ZVAL_LONG(result, ~lval);
return SUCCESS;
}
case IS_STRING: {
size_t i;
if (Z_STRLEN_P(op1) == 1) {
zend_uchar not = (zend_uchar) ~*Z_STRVAL_P(op1);
ZVAL_CHAR(result, not);
} 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);
if (result != op1) {
ZVAL_UNDEF(result);
}
zend_type_error("Cannot perform bitwise not on %s", zend_zval_type_name(op1));
return FAILURE;
}
}
/* }}} */
ZEND_API zend_result 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 (result==op1) {
zval_ptr_dtor_str(result);
}
ZVAL_CHAR(result, or);
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) {
zval_ptr_dtor_str(result);
}
ZVAL_NEW_STR(result, str);
return SUCCESS;
}
if (UNEXPECTED(Z_TYPE_P(op1) != IS_LONG)) {
bool failed;
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(ZEND_BW_OR);
op1_lval = zendi_try_get_long(op1, &failed);
if (UNEXPECTED(failed)) {
zend_binop_error("|", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
} else {
op1_lval = Z_LVAL_P(op1);
}
if (UNEXPECTED(Z_TYPE_P(op2) != IS_LONG)) {
bool failed;
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(ZEND_BW_OR);
op2_lval = zendi_try_get_long(op2, &failed);
if (UNEXPECTED(failed)) {
zend_binop_error("|", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
} else {
op2_lval = Z_LVAL_P(op2);
}
if (op1 == result) {
zval_ptr_dtor(result);
}
ZVAL_LONG(result, op1_lval | op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API zend_result 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 (result==op1) {
zval_ptr_dtor_str(result);
}
ZVAL_CHAR(result, and);
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) {
zval_ptr_dtor_str(result);
}
ZVAL_NEW_STR(result, str);
return SUCCESS;
}
if (UNEXPECTED(Z_TYPE_P(op1) != IS_LONG)) {
bool failed;
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(ZEND_BW_AND);
op1_lval = zendi_try_get_long(op1, &failed);
if (UNEXPECTED(failed)) {
zend_binop_error("&", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
} else {
op1_lval = Z_LVAL_P(op1);
}
if (UNEXPECTED(Z_TYPE_P(op2) != IS_LONG)) {
bool failed;
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(ZEND_BW_AND);
op2_lval = zendi_try_get_long(op2, &failed);
if (UNEXPECTED(failed)) {
zend_binop_error("&", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
} else {
op2_lval = Z_LVAL_P(op2);
}
if (op1 == result) {
zval_ptr_dtor(result);
}
ZVAL_LONG(result, op1_lval & op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API zend_result 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 (result==op1) {
zval_ptr_dtor_str(result);
}
ZVAL_CHAR(result, xor);
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) {
zval_ptr_dtor_str(result);
}
ZVAL_NEW_STR(result, str);
return SUCCESS;
}
if (UNEXPECTED(Z_TYPE_P(op1) != IS_LONG)) {
bool failed;
ZEND_TRY_BINARY_OP1_OBJECT_OPERATION(ZEND_BW_XOR);
op1_lval = zendi_try_get_long(op1, &failed);
if (UNEXPECTED(failed)) {
zend_binop_error("^", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
} else {
op1_lval = Z_LVAL_P(op1);
}
if (UNEXPECTED(Z_TYPE_P(op2) != IS_LONG)) {
bool failed;
ZEND_TRY_BINARY_OP2_OBJECT_OPERATION(ZEND_BW_XOR);
op2_lval = zendi_try_get_long(op2, &failed);
if (UNEXPECTED(failed)) {
zend_binop_error("^", op1, op2);
if (result != op1) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
} else {
op2_lval = Z_LVAL_P(op2);
}
if (op1 == result) {
zval_ptr_dtor(result);
}
ZVAL_LONG(result, op1_lval ^ op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API zend_result 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, result, ZEND_SL, "<<");
/* 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)) {
if (op1 == result) {
zval_ptr_dtor(result);
}
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");
}
if (op1 != result) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
}
if (op1 == result) {
zval_ptr_dtor(result);
}
/* Perform shift on unsigned numbers to get well-defined wrap behavior. */
ZVAL_LONG(result, (zend_long) ((zend_ulong) op1_lval << op2_lval));
return SUCCESS;
}
/* }}} */
ZEND_API zend_result 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, result, ZEND_SR, ">>");
/* 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)) {
if (op1 == result) {
zval_ptr_dtor(result);
}
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");
}
if (op1 != result) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
}
if (op1 == result) {
zval_ptr_dtor(result);
}
ZVAL_LONG(result, op1_lval >> op2_lval);
return SUCCESS;
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL concat_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
zval *orig_op1 = op1;
zval op1_copy, op2_copy;
ZVAL_UNDEF(&op1_copy);
ZVAL_UNDEF(&op2_copy);
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);
ZVAL_STR(&op1_copy, zval_get_string_func(op1));
if (UNEXPECTED(EG(exception))) {
zval_ptr_dtor_str(&op1_copy);
if (orig_op1 != result) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
if (result == 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);
ZVAL_STR(&op2_copy, zval_get_string_func(op2));
if (UNEXPECTED(EG(exception))) {
zval_ptr_dtor_str(&op1_copy);
zval_ptr_dtor_str(&op2_copy);
if (orig_op1 != result) {
ZVAL_UNDEF(result);
}
return FAILURE;
}
op2 = &op2_copy;
}
} while (0);
if (UNEXPECTED(Z_STRLEN_P(op1) == 0)) {
if (EXPECTED(result != op2)) {
if (result == orig_op1) {
i_zval_ptr_dtor(result);
}
ZVAL_COPY(result, op2);
}
} else if (UNEXPECTED(Z_STRLEN_P(op2) == 0)) {
if (EXPECTED(result != op1)) {
if (result == orig_op1) {
i_zval_ptr_dtor(result);
}
ZVAL_COPY(result, op1);
}
} else {
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 > ZSTR_MAX_LEN - op2_len)) {
zend_throw_error(NULL, "String size overflow");
zval_ptr_dtor_str(&op1_copy);
zval_ptr_dtor_str(&op2_copy);
if (orig_op1 != result) {
ZVAL_UNDEF(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);
if (result == orig_op1) {
i_zval_ptr_dtor(result);
}
}
/* 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';
}
zval_ptr_dtor_str(&op1_copy);
zval_ptr_dtor_str(&op2_copy);
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL string_compare_function_ex(zval *op1, zval *op2, bool case_insensitive) /* {{{ */
{
zend_string *tmp_str1, *tmp_str2;
zend_string *str1 = zval_get_tmp_string(op1, &tmp_str1);
zend_string *str2 = zval_get_tmp_string(op2, &tmp_str2);
int ret;
if (case_insensitive) {
ret = zend_binary_strcasecmp(ZSTR_VAL(str1), ZSTR_LEN(str1), ZSTR_VAL(str2), ZSTR_LEN(str2));
} else {
ret = zend_binary_strcmp(ZSTR_VAL(str1), ZSTR_LEN(str1), ZSTR_VAL(str2), ZSTR_LEN(str2));
}
zend_tmp_string_release(tmp_str1);
zend_tmp_string_release(tmp_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 *tmp_str1, *tmp_str2;
zend_string *str1 = zval_get_tmp_string(op1, &tmp_str1);
zend_string *str2 = zval_get_tmp_string(op2, &tmp_str2);
int ret = zend_binary_strcmp(ZSTR_VAL(str1), ZSTR_LEN(str1), ZSTR_VAL(str2), ZSTR_LEN(str2));
zend_tmp_string_release(tmp_str1);
zend_tmp_string_release(tmp_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(Z_STRVAL_P(op1), Z_STRLEN_P(op1), Z_STRVAL_P(op2), Z_STRLEN_P(op2));
}
} else {
zend_string *tmp_str1, *tmp_str2;
zend_string *str1 = zval_get_tmp_string(op1, &tmp_str1);
zend_string *str2 = zval_get_tmp_string(op2, &tmp_str2);
int ret = zend_binary_strcasecmp(ZSTR_VAL(str1), ZSTR_LEN(str1), ZSTR_VAL(str2), ZSTR_LEN(str2));
zend_tmp_string_release(tmp_str1);
zend_tmp_string_release(tmp_str2);
return ret;
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL string_locale_compare_function(zval *op1, zval *op2) /* {{{ */
{
zend_string *tmp_str1, *tmp_str2;
zend_string *str1 = zval_get_tmp_string(op1, &tmp_str1);
zend_string *str2 = zval_get_tmp_string(op2, &tmp_str2);
int ret = strcoll(ZSTR_VAL(str1), ZSTR_VAL(str2));
zend_tmp_string_release(tmp_str1);
zend_tmp_string_release(tmp_str2);
return ret;
}
/* }}} */
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);
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL compare_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_LONG(result, zend_compare(op1, op2));
return SUCCESS;
}
/* }}} */
static int compare_long_to_string(zend_long lval, zend_string *str) /* {{{ */
{
zend_long str_lval;
double str_dval;
zend_uchar type = is_numeric_string(ZSTR_VAL(str), ZSTR_LEN(str), &str_lval, &str_dval, 0);
if (type == IS_LONG) {
return lval > str_lval ? 1 : lval < str_lval ? -1 : 0;
}
if (type == IS_DOUBLE) {
double diff = (double) lval - str_dval;
return ZEND_NORMALIZE_BOOL(diff);
}
zend_string *lval_as_str = zend_long_to_str(lval);
int cmp_result = zend_binary_strcmp(
ZSTR_VAL(lval_as_str), ZSTR_LEN(lval_as_str), ZSTR_VAL(str), ZSTR_LEN(str));
zend_string_release(lval_as_str);
return ZEND_NORMALIZE_BOOL(cmp_result);
}
/* }}} */
static int compare_double_to_string(double dval, zend_string *str) /* {{{ */
{
zend_long str_lval;
double str_dval;
zend_uchar type = is_numeric_string(ZSTR_VAL(str), ZSTR_LEN(str), &str_lval, &str_dval, 0);
if (type == IS_LONG) {
double diff = dval - (double) str_lval;
return ZEND_NORMALIZE_BOOL(diff);
}
if (type == IS_DOUBLE) {
if (dval == str_dval) {
return 0;
}
return ZEND_NORMALIZE_BOOL(dval - str_dval);
}
zend_string *dval_as_str = zend_double_to_str(dval);
int cmp_result = zend_binary_strcmp(
ZSTR_VAL(dval_as_str), ZSTR_LEN(dval_as_str), ZSTR_VAL(str), ZSTR_LEN(str));
zend_string_release(dval_as_str);
return ZEND_NORMALIZE_BOOL(cmp_result);
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_compare(zval *op1, zval *op2) /* {{{ */
{
int converted = 0;
zval op1_copy, op2_copy;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG):
return Z_LVAL_P(op1)>Z_LVAL_P(op2)?1:(Z_LVAL_P(op1)<Z_LVAL_P(op2)?-1:0);
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
return ZEND_NORMALIZE_BOOL(Z_DVAL_P(op1) - (double)Z_LVAL_P(op2));
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
return ZEND_NORMALIZE_BOOL((double)Z_LVAL_P(op1) - Z_DVAL_P(op2));
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
if (Z_DVAL_P(op1) == Z_DVAL_P(op2)) {
return 0;
} else {
return ZEND_NORMALIZE_BOOL(Z_DVAL_P(op1) - Z_DVAL_P(op2));
}
case TYPE_PAIR(IS_ARRAY, IS_ARRAY):
return zend_compare_arrays(op1, op2);
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):
return 0;
case TYPE_PAIR(IS_NULL, IS_TRUE):
return -1;
case TYPE_PAIR(IS_TRUE, IS_NULL):
return 1;
case TYPE_PAIR(IS_STRING, IS_STRING):
if (Z_STR_P(op1) == Z_STR_P(op2)) {
return 0;
}
return zendi_smart_strcmp(Z_STR_P(op1), Z_STR_P(op2));
case TYPE_PAIR(IS_NULL, IS_STRING):
return Z_STRLEN_P(op2) == 0 ? 0 : -1;
case TYPE_PAIR(IS_STRING, IS_NULL):
return Z_STRLEN_P(op1) == 0 ? 0 : 1;
case TYPE_PAIR(IS_LONG, IS_STRING):
return compare_long_to_string(Z_LVAL_P(op1), Z_STR_P(op2));
case TYPE_PAIR(IS_STRING, IS_LONG):
return -compare_long_to_string(Z_LVAL_P(op2), Z_STR_P(op1));
case TYPE_PAIR(IS_DOUBLE, IS_STRING):
if (zend_isnan(Z_DVAL_P(op1))) {
return 1;
}
return compare_double_to_string(Z_DVAL_P(op1), Z_STR_P(op2));
case TYPE_PAIR(IS_STRING, IS_DOUBLE):
if (zend_isnan(Z_DVAL_P(op2))) {
return 1;
}
return -compare_double_to_string(Z_DVAL_P(op2), Z_STR_P(op1));
case TYPE_PAIR(IS_OBJECT, IS_NULL):
return 1;
case TYPE_PAIR(IS_NULL, IS_OBJECT):
return -1;
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_TYPE_P(op2) == IS_OBJECT
&& Z_OBJ_P(op1) == Z_OBJ_P(op2)) {
return 0;
} else if (Z_TYPE_P(op1) == IS_OBJECT) {
return Z_OBJ_HANDLER_P(op1, compare)(op1, op2);
} else if (Z_TYPE_P(op2) == IS_OBJECT) {
return Z_OBJ_HANDLER_P(op2, compare)(op1, op2);
}
if (!converted) {
if (Z_TYPE_P(op1) < IS_TRUE) {
return zval_is_true(op2) ? -1 : 0;
} else if (Z_TYPE_P(op1) == IS_TRUE) {
return zval_is_true(op2) ? 0 : 1;
} else if (Z_TYPE_P(op2) < IS_TRUE) {
return zval_is_true(op1) ? 1 : 0;
} else if (Z_TYPE_P(op2) == IS_TRUE) {
return zval_is_true(op1) ? 0 : -1;
} else {
op1 = _zendi_convert_scalar_to_number_silent(op1, &op1_copy);
op2 = _zendi_convert_scalar_to_number_silent(op2, &op2_copy);
if (EG(exception)) {
return 1; /* to stop comparison of arrays */
}
converted = 1;
}
} else if (Z_TYPE_P(op1)==IS_ARRAY) {
return 1;
} else if (Z_TYPE_P(op2)==IS_ARRAY) {
return -1;
} else {
ZEND_UNREACHABLE();
zend_throw_error(NULL, "Unsupported operand types");
return 1;
}
}
}
}
/* }}} */
/* return int to be compatible with compare_func_t */
static int hash_zval_identical_function(zval *z1, zval *z2) /* {{{ */
{
/* 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);
return fast_is_not_identical_function(z1, z2);
}
/* }}} */
ZEND_API bool 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 zend_string_equals(Z_STR_P(op1), Z_STR_P(op2));
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));
default:
return 0;
}
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL is_identical_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_BOOL(result, zend_is_identical(op1, op2));
return SUCCESS;
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL is_not_identical_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_BOOL(result, !zend_is_identical(op1, op2));
return SUCCESS;
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL is_equal_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_BOOL(result, zend_compare(op1, op2) == 0);
return SUCCESS;
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL is_not_equal_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_BOOL(result, (zend_compare(op1, op2) != 0));
return SUCCESS;
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL is_smaller_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_BOOL(result, (zend_compare(op1, op2) < 0));
return SUCCESS;
}
/* }}} */
ZEND_API zend_result ZEND_FASTCALL is_smaller_or_equal_function(zval *result, zval *op1, zval *op2) /* {{{ */
{
ZVAL_BOOL(result, (zend_compare(op1, op2) <= 0));
return SUCCESS;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_class_implements_interface(const zend_class_entry *class_ce, const zend_class_entry *interface_ce) /* {{{ */
{
uint32_t i;
ZEND_ASSERT(interface_ce->ce_flags & ZEND_ACC_INTERFACE);
if (class_ce->num_interfaces) {
ZEND_ASSERT(class_ce->ce_flags & ZEND_ACC_RESOLVED_INTERFACES);
for (i = 0; i < class_ce->num_interfaces; i++) {
if (class_ce->interfaces[i] == interface_ce) {
return 1;
}
}
}
return 0;
}
/* }}} */
ZEND_API bool ZEND_FASTCALL instanceof_function_slow(const zend_class_entry *instance_ce, const zend_class_entry *ce) /* {{{ */
{
ZEND_ASSERT(instance_ce != ce && "Should have been checked already");
if (ce->ce_flags & ZEND_ACC_INTERFACE) {
uint32_t i;
if (instance_ce->num_interfaces) {
ZEND_ASSERT(instance_ce->ce_flags & ZEND_ACC_RESOLVED_INTERFACES);
for (i = 0; i < instance_ce->num_interfaces; i++) {
if (instance_ce->interfaces[i] == ce) {
return 1;
}
}
}
return 0;
} else {
while (1) {
instance_ce = instance_ce->parent;
if (instance_ce == ce) {
return 1;
}
if (instance_ce == NULL) {
return 0;
}
}
}
}
/* }}} */
#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) {
zval_ptr_dtor_str(str);
ZVAL_CHAR(str, '1');
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) {
/* Only release string after allocation succeeded. */
zend_string *orig_str = Z_STR_P(str);
Z_STR_P(str) = zend_string_init(Z_STRVAL_P(str), Z_STRLEN_P(str), 0);
GC_DELREF(orig_str);
} 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 zend_result 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_str_function(Z_STR_P(op1), &lval, &dval)) {
case IS_LONG:
zval_ptr_dtor_str(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:
zval_ptr_dtor_str(op1);
ZVAL_DOUBLE(op1, dval+1);
break;
default:
/* Perl style string increment */
increment_string(op1);
break;
}
}
break;
case IS_FALSE:
case IS_TRUE:
/* Do nothing. */
break;
case IS_REFERENCE:
op1 = Z_REFVAL_P(op1);
goto try_again;
case IS_OBJECT:
if (Z_OBJ_HANDLER_P(op1, do_operation)) {
zval op2;
ZVAL_LONG(&op2, 1);
if (Z_OBJ_HANDLER_P(op1, do_operation)(ZEND_ADD, op1, op1, &op2) == SUCCESS) {
return SUCCESS;
}
}
ZEND_FALLTHROUGH;
case IS_RESOURCE:
case IS_ARRAY:
zend_type_error("Cannot increment %s", zend_zval_type_name(op1));
return FAILURE;
EMPTY_SWITCH_DEFAULT_CASE()
}
return SUCCESS;
}
/* }}} */
ZEND_API zend_result 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 */
zval_ptr_dtor_str(op1);
ZVAL_LONG(op1, -1);
break;
}
switch (is_numeric_str_function(Z_STR_P(op1), &lval, &dval)) {
case IS_LONG:
zval_ptr_dtor_str(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:
zval_ptr_dtor_str(op1);
ZVAL_DOUBLE(op1, dval - 1);
break;
}
break;
case IS_NULL:
case IS_FALSE:
case IS_TRUE:
/* Do nothing. */
break;
case IS_REFERENCE:
op1 = Z_REFVAL_P(op1);
goto try_again;
case IS_OBJECT:
if (Z_OBJ_HANDLER_P(op1, do_operation)) {
zval op2;
ZVAL_LONG(&op2, 1);
if (Z_OBJ_HANDLER_P(op1, do_operation)(ZEND_SUB, op1, op1, &op2) == SUCCESS) {
return SUCCESS;
}
}
ZEND_FALLTHROUGH;
case IS_RESOURCE:
case IS_ARRAY:
zend_type_error("Cannot decrement %s", zend_zval_type_name(op1));
return FAILURE;
EMPTY_SWITCH_DEFAULT_CASE()
}
return SUCCESS;
}
/* }}} */
ZEND_API int ZEND_FASTCALL zend_is_true(zval *op) /* {{{ */
{
return (int) i_zend_is_true(op);
}
/* }}} */
ZEND_API bool ZEND_FASTCALL zend_object_is_true(zval *op) /* {{{ */
{
zend_object *zobj = Z_OBJ_P(op);
zval tmp;
if (zobj->handlers->cast_object(zobj, &tmp, _IS_BOOL) == SUCCESS) {
return Z_TYPE(tmp) == IS_TRUE;
}
zend_error(E_RECOVERABLE_ERROR, "Object of class %s could not be converted to bool", ZSTR_VAL(zobj->ce->name));
return false;
}
/* }}} */
ZEND_API void zend_update_current_locale(void) /* {{{ */
{
#ifdef ZEND_USE_TOLOWER_L
# if defined(ZEND_WIN32) && defined(_MSC_VER)
current_locale = _get_current_locale();
# else
current_locale = uselocale(0);
# endif
#endif
#if defined(ZEND_WIN32) && defined(_MSC_VER)
if (MB_CUR_MAX > 1) {
unsigned int cp = ___lc_codepage_func();
CG(variable_width_locale) = 1;
// TODO: EUC-* are also ASCII compatible ???
CG(ascii_compatible_locale) =
cp == 65001; /* UTF-8 */
} else {
CG(variable_width_locale) = 0;
CG(ascii_compatible_locale) = 1;
}
#elif defined(MB_CUR_MAX)
/* Check if current locale uses variable width encoding */
if (MB_CUR_MAX > 1) {
#if HAVE_NL_LANGINFO
const char *charmap = nl_langinfo(CODESET);
#else
char buf[16];
const char *charmap = NULL;
const char *locale = setlocale(LC_CTYPE, NULL);
if (locale) {
const char *dot = strchr(locale, '.');
const char *modifier;
if (dot) {
dot++;
modifier = strchr(dot, '@');
if (!modifier) {
charmap = dot;
} else if (modifier - dot < sizeof(buf)) {
memcpy(buf, dot, modifier - dot);
buf[modifier - dot] = '\0';
charmap = buf;
}
}
}
#endif
CG(variable_width_locale) = 1;
CG(ascii_compatible_locale) = 0;
if (charmap) {
size_t len = strlen(charmap);
static const char *ascii_compatible_charmaps[] = {
"utf-8",
"utf8",
// TODO: EUC-* are also ASCII compatible ???
NULL
};
const char **p;
/* Check if current locale is ASCII compatible */
for (p = ascii_compatible_charmaps; *p; p++) {
if (zend_binary_strcasecmp(charmap, len, *p, strlen(*p)) == 0) {
CG(ascii_compatible_locale) = 1;
break;
}
}
}
} else {
CG(variable_width_locale) = 0;
CG(ascii_compatible_locale) = 1;
}
#else
/* We can't determine current charset. Assume the worst case */
CG(variable_width_locale) = 1;
CG(ascii_compatible_locale) = 0;
#endif
}
/* }}} */
ZEND_API void zend_reset_lc_ctype_locale(void)
{
/* Use the C.UTF-8 locale so that readline can process UTF-8 input, while not interfering
* with single-byte locale-dependent functions used by PHP. */
if (!setlocale(LC_CTYPE, "C.UTF-8")) {
setlocale(LC_CTYPE, "C");
}
}
static zend_always_inline void zend_str_tolower_impl(char *dest, const char *str, size_t length) /* {{{ */ {
unsigned char *p = (unsigned char*)str;
unsigned char *q = (unsigned char*)dest;
unsigned char *end = p + length;
#ifdef HAVE_BLOCKCONV
if (length >= BLOCKCONV_STRIDE) {
BLOCKCONV_INIT_RANGE('A', 'Z');
BLOCKCONV_INIT_DELTA('a' - 'A');
do {
BLOCKCONV_LOAD(p);
BLOCKCONV_STORE(q);
p += BLOCKCONV_STRIDE;
q += BLOCKCONV_STRIDE;
} while (p + BLOCKCONV_STRIDE <= end);
}
#endif
while (p < end) {
*q++ = zend_tolower_ascii(*p++);
}
}
/* }}} */
static zend_always_inline void zend_str_toupper_impl(char *dest, const char *str, size_t length) /* {{{ */ {
unsigned char *p = (unsigned char*)str;
unsigned char *q = (unsigned char*)dest;
unsigned char *end = p + length;
#ifdef HAVE_BLOCKCONV
if (length >= BLOCKCONV_STRIDE) {
BLOCKCONV_INIT_RANGE('a', 'z');
BLOCKCONV_INIT_DELTA('A' - 'a');
do {
BLOCKCONV_LOAD(p);
BLOCKCONV_STORE(q);
p += BLOCKCONV_STRIDE;
q += BLOCKCONV_STRIDE;
} while (p + BLOCKCONV_STRIDE <= end);
}
#endif
while (p < end) {
*q++ = zend_toupper_ascii(*p++);
}
}
/* }}} */
ZEND_API char* ZEND_FASTCALL zend_str_tolower_copy(char *dest, const char *source, size_t length) /* {{{ */
{
zend_str_tolower_impl(dest, source, length);
dest[length] = '\0';
return dest;
}
/* }}} */
ZEND_API char* ZEND_FASTCALL zend_str_toupper_copy(char *dest, const char *source, size_t length) /* {{{ */
{
zend_str_toupper_impl(dest, source, length);
dest[length] = '\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 char* ZEND_FASTCALL zend_str_toupper_dup(const char *source, size_t length) /* {{{ */
{
return zend_str_toupper_copy((char *)emalloc(length+1), source, length);
}
/* }}} */
ZEND_API void ZEND_FASTCALL zend_str_tolower(char *str, size_t length) /* {{{ */
{
zend_str_tolower_impl(str, (const char*)str, length);
}
/* }}} */
ZEND_API void ZEND_FASTCALL zend_str_toupper(char *str, size_t length) /* {{{ */
{
zend_str_toupper_impl(str, (const char*)str, length);
}
/* }}} */
ZEND_API char* ZEND_FASTCALL zend_str_tolower_dup_ex(const char *source, size_t length) /* {{{ */
{
const unsigned char *p = (const unsigned char*)source;
const unsigned char *end = p + length;
while (p < end) {
if (*p != zend_tolower_ascii(*p)) {
char *res = (char*)emalloc(length + 1);
unsigned char *r;
if (p != (const unsigned char*)source) {
memcpy(res, source, p - (const unsigned char*)source);
}
r = (unsigned char*)p + (res - source);
zend_str_tolower_impl((char *)r, (const char*)p, end - p);
res[length] = '\0';
return res;
}
p++;
}
return NULL;
}
/* }}} */
ZEND_API char* ZEND_FASTCALL zend_str_toupper_dup_ex(const char *source, size_t length) /* {{{ */
{
const unsigned char *p = (const unsigned char*)source;
const unsigned char *end = p + length;
while (p < end) {
if (*p != zend_toupper_ascii(*p)) {
char *res = (char*)emalloc(length + 1);
unsigned char *r;
if (p != (const unsigned char*)source) {
memcpy(res, source, p - (const unsigned char*)source);
}
r = (unsigned char*)p + (res - source);
zend_str_toupper_impl((char *)r, (const char*)p, end - p);
res[length] = '\0';
return res;
}
p++;
}
return NULL;
}
/* }}} */
ZEND_API zend_string* ZEND_FASTCALL zend_string_tolower_ex(zend_string *str, bool persistent) /* {{{ */
{
size_t length = ZSTR_LEN(str);
unsigned char *p = (unsigned char *) ZSTR_VAL(str);
unsigned char *end = p + length;
#ifdef HAVE_BLOCKCONV
BLOCKCONV_INIT_RANGE('A', 'Z');
while (p + BLOCKCONV_STRIDE <= end) {
BLOCKCONV_LOAD(p);
if (BLOCKCONV_FOUND()) {
zend_string *res = zend_string_alloc(length, persistent);
memcpy(ZSTR_VAL(res), ZSTR_VAL(str), p - (unsigned char *) ZSTR_VAL(str));
unsigned char *q = (unsigned char*) ZSTR_VAL(res) + (p - (unsigned char*) ZSTR_VAL(str));
/* Lowercase the chunk we already compared. */
BLOCKCONV_INIT_DELTA('a' - 'A');
BLOCKCONV_STORE(q);
/* Lowercase the rest of the string. */
p += BLOCKCONV_STRIDE;
q += BLOCKCONV_STRIDE;
zend_str_tolower_impl((char *) q, (const char *) p, end - p);
ZSTR_VAL(res)[length] = '\0';
return res;
}
p += BLOCKCONV_STRIDE;
}
#endif
while (p < end) {
if (*p != zend_tolower_ascii(*p)) {
zend_string *res = zend_string_alloc(length, persistent);
memcpy(ZSTR_VAL(res), ZSTR_VAL(str), p - (unsigned char*) ZSTR_VAL(str));
unsigned char *q = (unsigned char*) ZSTR_VAL(res) + (p - (unsigned char*) ZSTR_VAL(str));
while (p < end) {
*q++ = zend_tolower_ascii(*p++);
}
ZSTR_VAL(res)[length] = '\0';
return res;
}
p++;
}
return zend_string_copy(str);
}
/* }}} */
ZEND_API zend_string* ZEND_FASTCALL zend_string_toupper_ex(zend_string *str, bool persistent) /* {{{ */
{
size_t length = ZSTR_LEN(str);
unsigned char *p = (unsigned char *) ZSTR_VAL(str);
unsigned char *end = p + length;
#ifdef HAVE_BLOCKCONV
BLOCKCONV_INIT_RANGE('a', 'z');
while (p + BLOCKCONV_STRIDE <= end) {
BLOCKCONV_LOAD(p);
if (BLOCKCONV_FOUND()) {
zend_string *res = zend_string_alloc(length, persistent);
memcpy(ZSTR_VAL(res), ZSTR_VAL(str), p - (unsigned char *) ZSTR_VAL(str));
unsigned char *q = (unsigned char *) ZSTR_VAL(res) + (p - (unsigned char *) ZSTR_VAL(str));
/* Uppercase the chunk we already compared. */
BLOCKCONV_INIT_DELTA('A' - 'a');
BLOCKCONV_STORE(q);
/* Uppercase the rest of the string. */
p += BLOCKCONV_STRIDE;
q += BLOCKCONV_STRIDE;
zend_str_toupper_impl((char *) q, (const char *) p, end - p);
ZSTR_VAL(res)[length] = '\0';
return res;
}
p += BLOCKCONV_STRIDE;
}
#endif
while (p < end) {
if (*p != zend_toupper_ascii(*p)) {
zend_string *res = zend_string_alloc(length, persistent);
memcpy(ZSTR_VAL(res), ZSTR_VAL(str), p - (unsigned char*) ZSTR_VAL(str));
unsigned char *q = (unsigned char *) ZSTR_VAL(res) + (p - (unsigned char *) ZSTR_VAL(str));
while (p < end) {
*q++ = zend_toupper_ascii(*p++);
}
ZSTR_VAL(res)[length] = '\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 ZEND_THREEWAY_COMPARE(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 ZEND_THREEWAY_COMPARE(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 ZEND_THREEWAY_COMPARE(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 ZEND_THREEWAY_COMPARE(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 ZEND_THREEWAY_COMPARE(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 ZEND_THREEWAY_COMPARE(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 bool ZEND_FASTCALL zendi_smart_streq(zend_string *s1, zend_string *s2) /* {{{ */
{
zend_uchar 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, false, &oflow1, NULL)) &&
(ret2 = is_numeric_string_ex(s2->val, s2->len, &lval2, &dval2, false, &oflow2, NULL))) {
#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 0;
}
dval1 = (double) lval1;
} else if (ret2 != IS_DOUBLE) {
if (oflow1) {
return 0;
}
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;
}
return dval1 == dval2;
} else { /* they both have to be long's */
return lval1 == lval2;
}
} else {
string_cmp:
return zend_string_equal_content(s1, s2);
}
}
/* }}} */
ZEND_API int ZEND_FASTCALL zendi_smart_strcmp(zend_string *s1, zend_string *s2) /* {{{ */
{
zend_uchar 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, false, &oflow1, NULL)) &&
(ret2 = is_numeric_string_ex(s2->val, s2->len, &lval2, &dval2, false, &oflow2, NULL))) {
#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 overflowed 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) /* {{{ */
{
return zend_compare(z1, z2);
}
/* }}} */
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 == NULL) {
return 1;
} else {
return Z_OBJ_HT_P(o1)->compare(o1, o2);
}
}
/* }}} */
ZEND_API zend_string* ZEND_FASTCALL zend_long_to_str(zend_long num) /* {{{ */
{
if ((zend_ulong)num <= 9) {
return ZSTR_CHAR((zend_uchar)'0' + (zend_uchar)num);
} else {
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_string* ZEND_FASTCALL zend_ulong_to_str(zend_ulong num)
{
if (num <= 9) {
return ZSTR_CHAR((zend_uchar)'0' + (zend_uchar)num);
} else {
char buf[MAX_LENGTH_OF_LONG + 1];
char *res = zend_print_ulong_to_buf(buf + sizeof(buf) - 1, num);
return zend_string_init(res, buf + sizeof(buf) - 1 - res, 0);
}
}
/* buf points to the END of the buffer */
static zend_always_inline char *zend_print_u64_to_buf(char *buf, uint64_t num64) {
#if SIZEOF_ZEND_LONG == 8
return zend_print_ulong_to_buf(buf, num64);
#else
*buf = '\0';
while (num64 > ZEND_ULONG_MAX) {
*--buf = (char) (num64 % 10) + '0';
num64 /= 10;
}
zend_ulong num = (zend_ulong) num64;
do {
*--buf = (char) (num % 10) + '0';
num /= 10;
} while (num > 0);
return buf;
#endif
}
/* buf points to the END of the buffer */
static zend_always_inline char *zend_print_i64_to_buf(char *buf, int64_t num) {
if (num < 0) {
char *result = zend_print_u64_to_buf(buf, ~((uint64_t) num) + 1);
*--result = '-';
return result;
} else {
return zend_print_u64_to_buf(buf, num);
}
}
ZEND_API zend_string* ZEND_FASTCALL zend_u64_to_str(uint64_t num)
{
if (num <= 9) {
return ZSTR_CHAR((zend_uchar)'0' + (zend_uchar)num);
} else {
char buf[20 + 1];
char *res = zend_print_u64_to_buf(buf + sizeof(buf) - 1, num);
return zend_string_init(res, buf + sizeof(buf) - 1 - res, 0);
}
}
ZEND_API zend_string* ZEND_FASTCALL zend_i64_to_str(int64_t num)
{
if ((uint64_t)num <= 9) {
return ZSTR_CHAR((zend_uchar)'0' + (zend_uchar)num);
} else {
char buf[20 + 1];
char *res = zend_print_i64_to_buf(buf + sizeof(buf) - 1, num);
return zend_string_init(res, buf + sizeof(buf) - 1 - res, 0);
}
}
ZEND_API zend_string* ZEND_FASTCALL zend_double_to_str(double num)
{
char buf[ZEND_DOUBLE_MAX_LENGTH];
/* Model snprintf precision behavior. */
int precision = (int) EG(precision);
zend_gcvt(num, precision ? precision : 1, '.', 'E', buf);
return zend_string_init(buf, strlen(buf), 0);
}
ZEND_API zend_uchar ZEND_FASTCALL is_numeric_str_function(const zend_string *str, zend_long *lval, double *dval) /* {{{ */
{
return is_numeric_string(ZSTR_VAL(str), ZSTR_LEN(str), lval, dval, false);
}
/* }}} */
ZEND_API zend_uchar ZEND_FASTCALL _is_numeric_string_ex(const char *str, size_t length, zend_long *lval,
double *dval, bool allow_errors, int *oflow_info, bool *trailing_data) /* {{{ */
{
const char *ptr;
int digits = 0, dp_or_e = 0;
double local_dval = 0.0;
zend_uchar type;
zend_ulong tmp_lval = 0;
int neg = 0;
if (!length) {
return 0;
}
if (oflow_info != NULL) {
*oflow_info = 0;
}
if (trailing_data != NULL) {
*trailing_data = false;
}
/* 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)); 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 && dp_or_e != -1) {
dp_or_e = (*ptr++ == '.') ? 1 : 2;
goto check_digits;
}
} else {
return 0;
}
if (ptr != str + length) {
const char *endptr = ptr;
while (*endptr == ' ' || *endptr == '\t' || *endptr == '\n' || *endptr == '\r' || *endptr == '\v' || *endptr == '\f') {
endptr++;
length--;
}
if (ptr != str + length) {
if (!allow_errors) {
return 0;
}
if (trailing_data != NULL) {
*trailing_data = true;
}
}
}
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 = (zend_long) 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 {
size_t i;
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];
size_t i;
const char *p;
if (needle_len == 0 || (end - haystack) < needle_len) {
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;
}
if (UNEXPECTED(p == end)) {
return NULL;
}
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];
size_t i;
const char *p;
if (needle_len == 0 || (end - haystack) < needle_len) {
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 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
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