/
gmp.c
1643 lines (1359 loc) · 40.2 KB
/
gmp.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2012 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP 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.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Stanislav Malyshev <stas@php.net> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "php_gmp.h"
#include "ext/standard/info.h"
#if HAVE_GMP
#include <gmp.h>
/* Needed for gmp_random() */
#include "ext/standard/php_rand.h"
#include "ext/standard/php_lcg.h"
#define GMP_ABS(x) ((x) >= 0 ? (x) : -(x))
/* True global resources - no need for thread safety here */
static int le_gmp;
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_init, 0, 0, 1)
ZEND_ARG_INFO(0, number)
ZEND_ARG_INFO(0, base)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_intval, 0)
ZEND_ARG_INFO(0, gmpnumber)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_strval, 0, 0, 1)
ZEND_ARG_INFO(0, gmpnumber)
ZEND_ARG_INFO(0, base)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_add, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_sub, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_mul, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_div_qr, 0, 0, 2)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_ARG_INFO(0, round)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_div_r, 0, 0, 2)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_ARG_INFO(0, round)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_div_q, 0, 0, 2)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_ARG_INFO(0, round)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_mod, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_divexact, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_neg, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_abs, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_fact, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_pow, 0)
ZEND_ARG_INFO(0, base)
ZEND_ARG_INFO(0, exp)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_powm, 0)
ZEND_ARG_INFO(0, base)
ZEND_ARG_INFO(0, exp)
ZEND_ARG_INFO(0, mod)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_sqrt, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_sqrtrem, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_perfect_square, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_prob_prime, 0, 0, 1)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, reps)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_gcd, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_gcdext, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_invert, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_jacobi, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_legendre, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_cmp, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_sign, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_random, 0, 0, 0)
ZEND_ARG_INFO(0, limiter)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_and, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_or, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_com, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_xor, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmp_setbit, 0, 0, 2)
ZEND_ARG_INFO(1, a)
ZEND_ARG_INFO(0, index)
ZEND_ARG_INFO(0, set_clear)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_clrbit, 0)
ZEND_ARG_INFO(1, a)
ZEND_ARG_INFO(0, index)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_testbit, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, index)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_popcount, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_hamdist, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, b)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_scan0, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, start)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_scan1, 0)
ZEND_ARG_INFO(0, a)
ZEND_ARG_INFO(0, start)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_gmp_nextprime, 0)
ZEND_ARG_INFO(0, a)
ZEND_END_ARG_INFO()
/* }}} */
ZEND_DECLARE_MODULE_GLOBALS(gmp)
static ZEND_GINIT_FUNCTION(gmp);
/* {{{ gmp_functions[]
*/
const zend_function_entry gmp_functions[] = {
ZEND_FE(gmp_init, arginfo_gmp_init)
ZEND_FE(gmp_intval, arginfo_gmp_intval)
ZEND_FE(gmp_strval, arginfo_gmp_strval)
ZEND_FE(gmp_add, arginfo_gmp_add)
ZEND_FE(gmp_sub, arginfo_gmp_sub)
ZEND_FE(gmp_mul, arginfo_gmp_mul)
ZEND_FE(gmp_div_qr, arginfo_gmp_div_qr)
ZEND_FE(gmp_div_q, arginfo_gmp_div_q)
ZEND_FE(gmp_div_r, arginfo_gmp_div_r)
ZEND_FALIAS(gmp_div, gmp_div_q, arginfo_gmp_div_q)
ZEND_FE(gmp_mod, arginfo_gmp_mod)
ZEND_FE(gmp_divexact, arginfo_gmp_divexact)
ZEND_FE(gmp_neg, arginfo_gmp_neg)
ZEND_FE(gmp_abs, arginfo_gmp_abs)
ZEND_FE(gmp_fact, arginfo_gmp_fact)
ZEND_FE(gmp_sqrt, arginfo_gmp_sqrt)
ZEND_FE(gmp_sqrtrem, arginfo_gmp_sqrtrem)
ZEND_FE(gmp_pow, arginfo_gmp_pow)
ZEND_FE(gmp_powm, arginfo_gmp_powm)
ZEND_FE(gmp_perfect_square, arginfo_gmp_perfect_square)
ZEND_FE(gmp_prob_prime, arginfo_gmp_prob_prime)
ZEND_FE(gmp_gcd, arginfo_gmp_gcd)
ZEND_FE(gmp_gcdext, arginfo_gmp_gcdext)
ZEND_FE(gmp_invert, arginfo_gmp_invert)
ZEND_FE(gmp_jacobi, arginfo_gmp_jacobi)
ZEND_FE(gmp_legendre, arginfo_gmp_legendre)
ZEND_FE(gmp_cmp, arginfo_gmp_cmp)
ZEND_FE(gmp_sign, arginfo_gmp_sign)
ZEND_FE(gmp_random, arginfo_gmp_random)
ZEND_FE(gmp_and, arginfo_gmp_and)
ZEND_FE(gmp_or, arginfo_gmp_or)
ZEND_FE(gmp_com, arginfo_gmp_com)
ZEND_FE(gmp_xor, arginfo_gmp_xor)
ZEND_FE(gmp_setbit, arginfo_gmp_setbit)
ZEND_FE(gmp_clrbit, arginfo_gmp_clrbit)
ZEND_FE(gmp_scan0, arginfo_gmp_scan0)
ZEND_FE(gmp_scan1, arginfo_gmp_scan1)
ZEND_FE(gmp_testbit,arginfo_gmp_testbit)
ZEND_FE(gmp_popcount, arginfo_gmp_popcount)
ZEND_FE(gmp_hamdist, arginfo_gmp_hamdist)
ZEND_FE(gmp_nextprime, arginfo_gmp_nextprime)
PHP_FE_END
};
/* }}} */
/* {{{ gmp_module_entry
*/
zend_module_entry gmp_module_entry = {
STANDARD_MODULE_HEADER,
"gmp",
gmp_functions,
ZEND_MODULE_STARTUP_N(gmp),
NULL,
NULL,
ZEND_MODULE_DEACTIVATE_N(gmp),
ZEND_MODULE_INFO_N(gmp),
NO_VERSION_YET,
ZEND_MODULE_GLOBALS(gmp),
ZEND_GINIT(gmp),
NULL,
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
#ifdef COMPILE_DL_GMP
ZEND_GET_MODULE(gmp)
#endif
static void _php_gmpnum_free(zend_rsrc_list_entry *rsrc TSRMLS_DC);
#define GMP_RESOURCE_NAME "GMP integer"
#define GMP_ROUND_ZERO 0
#define GMP_ROUND_PLUSINF 1
#define GMP_ROUND_MINUSINF 2
/* The maximum base for input and output conversions is 62 from GMP 4.2
* onwards. */
#if (__GNU_MP_VERSION >= 5) || (__GNU_MP_VERSION >= 4 && __GNU_MP_VERSION_MINOR >= 2)
# define MAX_BASE 62
#else
# define MAX_BASE 36
#endif
/* {{{ gmp_emalloc
*/
static void *gmp_emalloc(size_t size)
{
return emalloc(size);
}
/* }}} */
/* {{{ gmp_erealloc
*/
static void *gmp_erealloc(void *ptr, size_t old_size, size_t new_size)
{
return erealloc(ptr, new_size);
}
/* }}} */
/* {{{ gmp_efree
*/
static void gmp_efree(void *ptr, size_t size)
{
efree(ptr);
}
/* }}} */
/* {{{ ZEND_GINIT_FUNCTION
*/
static ZEND_GINIT_FUNCTION(gmp)
{
gmp_globals->rand_initialized = 0;
}
/* }}} */
/* {{{ ZEND_MINIT_FUNCTION
*/
ZEND_MODULE_STARTUP_D(gmp)
{
le_gmp = zend_register_list_destructors_ex(_php_gmpnum_free, NULL, GMP_RESOURCE_NAME, module_number);
REGISTER_LONG_CONSTANT("GMP_ROUND_ZERO", GMP_ROUND_ZERO, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("GMP_ROUND_PLUSINF", GMP_ROUND_PLUSINF, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("GMP_ROUND_MINUSINF", GMP_ROUND_MINUSINF, CONST_CS | CONST_PERSISTENT);
#ifdef mpir_version
REGISTER_STRING_CONSTANT("GMP_MPIR_VERSION", (char *)mpir_version, CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_STRING_CONSTANT("GMP_VERSION", (char *)gmp_version, CONST_CS | CONST_PERSISTENT);
mp_set_memory_functions(gmp_emalloc, gmp_erealloc, gmp_efree);
return SUCCESS;
}
/* }}} */
/* {{{ ZEND_RSHUTDOWN_FUNCTION
*/
ZEND_MODULE_DEACTIVATE_D(gmp)
{
if (GMPG(rand_initialized)) {
gmp_randclear(GMPG(rand_state));
GMPG(rand_initialized) = 0;
}
return SUCCESS;
}
/* }}} */
/* {{{ ZEND_MINFO_FUNCTION
*/
ZEND_MODULE_INFO_D(gmp)
{
php_info_print_table_start();
php_info_print_table_row(2, "gmp support", "enabled");
#ifdef mpir_version
php_info_print_table_row(2, "MPIR version", mpir_version);
#else
php_info_print_table_row(2, "GMP version", gmp_version);
#endif
php_info_print_table_end();
}
/* }}} */
/* Fetch zval to be GMP number.
Initially, zval can be also number or string */
#define FETCH_GMP_ZVAL(gmpnumber, zval, tmp_resource) \
if (Z_TYPE_PP(zval) == IS_RESOURCE) { \
ZEND_FETCH_RESOURCE(gmpnumber, mpz_t *, zval, -1, GMP_RESOURCE_NAME, le_gmp); \
tmp_resource = 0; \
} else { \
if (convert_to_gmp(&gmpnumber, zval, 0 TSRMLS_CC) == FAILURE) { \
RETURN_FALSE; \
} \
tmp_resource = ZEND_REGISTER_RESOURCE(NULL, gmpnumber, le_gmp); \
}
#define FREE_GMP_TEMP(tmp_resource) \
if(tmp_resource) { \
zend_list_delete(tmp_resource); \
}
/* create a new initialized GMP number */
#define INIT_GMP_NUM(gmpnumber) { gmpnumber=emalloc(sizeof(mpz_t)); mpz_init(*gmpnumber); }
#define FREE_GMP_NUM(gmpnumber) { mpz_clear(*gmpnumber); efree(gmpnumber); }
/* {{{ convert_to_gmp
* Convert zval to be gmp number */
static int convert_to_gmp(mpz_t * *gmpnumber, zval **val, int base TSRMLS_DC)
{
int ret = 0;
int skip_lead = 0;
*gmpnumber = emalloc(sizeof(mpz_t));
switch (Z_TYPE_PP(val)) {
case IS_LONG:
case IS_BOOL:
case IS_CONSTANT:
{
convert_to_long_ex(val);
mpz_init_set_si(**gmpnumber, Z_LVAL_PP(val));
}
break;
case IS_STRING:
{
char *numstr = Z_STRVAL_PP(val);
if (Z_STRLEN_PP(val) > 2) {
if (numstr[0] == '0') {
if (numstr[1] == 'x' || numstr[1] == 'X') {
base = 16;
skip_lead = 1;
} else if (base != 16 && (numstr[1] == 'b' || numstr[1] == 'B')) {
base = 2;
skip_lead = 1;
}
}
}
ret = mpz_init_set_str(**gmpnumber, (skip_lead ? &numstr[2] : numstr), base);
}
break;
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING,"Unable to convert variable to GMP - wrong type");
efree(*gmpnumber);
return FAILURE;
}
if (ret) {
FREE_GMP_NUM(*gmpnumber);
return FAILURE;
}
return SUCCESS;
}
/* }}} */
/* {{{ typedefs
*/
typedef void (*gmp_unary_op_t)(mpz_ptr, mpz_srcptr);
typedef int (*gmp_unary_opl_t)(mpz_srcptr);
typedef void (*gmp_unary_ui_op_t)(mpz_ptr, unsigned long);
typedef void (*gmp_binary_op_t)(mpz_ptr, mpz_srcptr, mpz_srcptr);
typedef int (*gmp_binary_opl_t)(mpz_srcptr, mpz_srcptr);
typedef unsigned long (*gmp_binary_ui_op_t)(mpz_ptr, mpz_srcptr, unsigned long);
typedef void (*gmp_binary_op2_t)(mpz_ptr, mpz_ptr, mpz_srcptr, mpz_srcptr);
typedef unsigned long (*gmp_binary_ui_op2_t)(mpz_ptr, mpz_ptr, mpz_srcptr, unsigned long);
/* }}} */
#define gmp_zval_binary_ui_op(r, a, b, o, u) gmp_zval_binary_ui_op_ex(r, a, b, o, u, 0, 0, 0 TSRMLS_CC)
#define gmp_zval_binary_ui_op2(r, a, b, o, u) gmp_zval_binary_ui_op2_ex(r, a, b, o, u, 0, 0, 0 TSRMLS_CC)
#define gmp_binary_ui_op(op, uop) _gmp_binary_ui_op(INTERNAL_FUNCTION_PARAM_PASSTHRU, op, uop)
#define gmp_binary_op(op) _gmp_binary_ui_op(INTERNAL_FUNCTION_PARAM_PASSTHRU, op, NULL)
#define gmp_binary_opl(op) _gmp_binary_opl(INTERNAL_FUNCTION_PARAM_PASSTHRU, op)
/* Unary operations */
#define gmp_unary_op(op) _gmp_unary_op(INTERNAL_FUNCTION_PARAM_PASSTHRU, op)
#define gmp_unary_opl(op) _gmp_unary_opl(INTERNAL_FUNCTION_PARAM_PASSTHRU, op)
#define gmp_unary_ui_op(op) _gmp_unary_ui_op(INTERNAL_FUNCTION_PARAM_PASSTHRU, op)
/* {{{ gmp_zval_binary_ui_op_ex
Execute GMP binary operation.
May return GMP resource or long if operation allows this
*/
static inline void gmp_zval_binary_ui_op_ex(zval *return_value, zval **a_arg, zval **b_arg, gmp_binary_op_t gmp_op, gmp_binary_ui_op_t gmp_ui_op, int allow_ui_return, int check_b_zero, int use_sign TSRMLS_DC)
{
mpz_t *gmpnum_a, *gmpnum_b, *gmpnum_result;
unsigned long long_result = 0;
int use_ui = 0;
int arga_tmp = 0, argb_tmp = 0;
FETCH_GMP_ZVAL(gmpnum_a, a_arg, arga_tmp);
if (gmp_ui_op && Z_TYPE_PP(b_arg) == IS_LONG && Z_LVAL_PP(b_arg) >= 0) {
use_ui = 1;
} else {
FETCH_GMP_ZVAL(gmpnum_b, b_arg, argb_tmp);
}
if(check_b_zero) {
int b_is_zero = 0;
if(use_ui) {
b_is_zero = (Z_LVAL_PP(b_arg) == 0);
} else {
b_is_zero = !mpz_cmp_ui(*gmpnum_b, 0);
}
if(b_is_zero) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Zero operand not allowed");
FREE_GMP_TEMP(arga_tmp);
FREE_GMP_TEMP(argb_tmp);
RETURN_FALSE;
}
}
INIT_GMP_NUM(gmpnum_result);
if (use_ui && gmp_ui_op) {
if (allow_ui_return) {
long_result = gmp_ui_op(*gmpnum_result, *gmpnum_a, (unsigned long)Z_LVAL_PP(b_arg));
if (use_sign && mpz_sgn(*gmpnum_a) == -1) {
long_result = -long_result;
}
} else {
gmp_ui_op(*gmpnum_result, *gmpnum_a, (unsigned long)Z_LVAL_PP(b_arg));
}
} else {
gmp_op(*gmpnum_result, *gmpnum_a, *gmpnum_b);
}
FREE_GMP_TEMP(arga_tmp);
FREE_GMP_TEMP(argb_tmp);
if (use_ui && allow_ui_return) {
FREE_GMP_NUM(gmpnum_result);
RETURN_LONG((long)long_result);
} else {
ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);
}
}
/* }}} */
/* {{{ gmp_zval_binary_ui_op2_ex
Execute GMP binary operation which returns 2 values.
May return GMP resources or longs if operation allows this.
*/
static inline void gmp_zval_binary_ui_op2_ex(zval *return_value, zval **a_arg, zval **b_arg, gmp_binary_op2_t gmp_op, gmp_binary_ui_op2_t gmp_ui_op, int allow_ui_return, int check_b_zero TSRMLS_DC)
{
mpz_t *gmpnum_a, *gmpnum_b, *gmpnum_result1, *gmpnum_result2;
zval r;
int use_ui = 0;
unsigned long long_result = 0;
int arga_tmp = 0, argb_tmp = 0;
FETCH_GMP_ZVAL(gmpnum_a, a_arg, arga_tmp);
if (gmp_ui_op && Z_TYPE_PP(b_arg) == IS_LONG && Z_LVAL_PP(b_arg) >= 0) {
/* use _ui function */
use_ui = 1;
} else {
FETCH_GMP_ZVAL(gmpnum_b, b_arg, argb_tmp);
}
if(check_b_zero) {
int b_is_zero = 0;
if(use_ui) {
b_is_zero = (Z_LVAL_PP(b_arg) == 0);
} else {
b_is_zero = !mpz_cmp_ui(*gmpnum_b, 0);
}
if(b_is_zero) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Zero operand not allowed");
FREE_GMP_TEMP(arga_tmp);
FREE_GMP_TEMP(argb_tmp);
RETURN_FALSE;
}
}
INIT_GMP_NUM(gmpnum_result1);
INIT_GMP_NUM(gmpnum_result2);
if (use_ui && gmp_ui_op) {
if (allow_ui_return) {
long_result = gmp_ui_op(*gmpnum_result1, *gmpnum_result2, *gmpnum_a, (unsigned long)Z_LVAL_PP(b_arg));
} else {
gmp_ui_op(*gmpnum_result1, *gmpnum_result2, *gmpnum_a, (unsigned long)Z_LVAL_PP(b_arg));
}
} else {
gmp_op(*gmpnum_result1, *gmpnum_result2, *gmpnum_a, *gmpnum_b);
}
FREE_GMP_TEMP(arga_tmp);
FREE_GMP_TEMP(argb_tmp);
array_init(return_value);
ZEND_REGISTER_RESOURCE(&r, gmpnum_result1, le_gmp);
add_index_resource(return_value, 0, Z_LVAL(r));
if (use_ui && allow_ui_return) {
mpz_clear(*gmpnum_result2);
add_index_long(return_value, 1, long_result);
} else {
ZEND_REGISTER_RESOURCE(&r, gmpnum_result2, le_gmp);
add_index_resource(return_value, 1, Z_LVAL(r));
}
}
/* }}} */
/* {{{ _gmp_binary_ui_op
*/
static inline void _gmp_binary_ui_op(INTERNAL_FUNCTION_PARAMETERS, gmp_binary_op_t gmp_op, gmp_binary_ui_op_t gmp_ui_op)
{
zval **a_arg, **b_arg;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ZZ", &a_arg, &b_arg) == FAILURE){
return;
}
gmp_zval_binary_ui_op(return_value, a_arg, b_arg, gmp_op, gmp_ui_op);
}
/* }}} */
/* Unary operations */
/* {{{ gmp_zval_unary_op
*/
static inline void gmp_zval_unary_op(zval *return_value, zval **a_arg, gmp_unary_op_t gmp_op TSRMLS_DC)
{
mpz_t *gmpnum_a, *gmpnum_result;
int temp_a;
FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
INIT_GMP_NUM(gmpnum_result);
gmp_op(*gmpnum_result, *gmpnum_a);
FREE_GMP_TEMP(temp_a);
ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);
}
/* }}} */
/* {{{ gmp_zval_unary_ui_op
*/
static inline void gmp_zval_unary_ui_op(zval *return_value, zval **a_arg, gmp_unary_ui_op_t gmp_op TSRMLS_DC)
{
mpz_t *gmpnum_result;
convert_to_long_ex(a_arg);
INIT_GMP_NUM(gmpnum_result);
gmp_op(*gmpnum_result, Z_LVAL_PP(a_arg));
ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);
}
/* }}} */
/* {{{ _gmp_unary_ui_op
Execute GMP unary operation.
*/
static inline void _gmp_unary_ui_op(INTERNAL_FUNCTION_PARAMETERS, gmp_unary_ui_op_t gmp_op)
{
zval **a_arg;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z", &a_arg) == FAILURE){
return;
}
gmp_zval_unary_ui_op(return_value, a_arg, gmp_op TSRMLS_CC);
}
/* }}} */
/* {{{ _gmp_unary_op
*/
static inline void _gmp_unary_op(INTERNAL_FUNCTION_PARAMETERS, gmp_unary_op_t gmp_op)
{
zval **a_arg;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z", &a_arg) == FAILURE){
return;
}
gmp_zval_unary_op(return_value, a_arg, gmp_op TSRMLS_CC);
}
/* }}} */
/* {{{ _gmp_unary_opl
*/
static inline void _gmp_unary_opl(INTERNAL_FUNCTION_PARAMETERS, gmp_unary_opl_t gmp_op)
{
zval **a_arg;
mpz_t *gmpnum_a;
int temp_a;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z", &a_arg) == FAILURE){
return;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
RETVAL_LONG(gmp_op(*gmpnum_a));
FREE_GMP_TEMP(temp_a);
}
/* }}} */
/* {{{ _gmp_binary_opl
*/
static inline void _gmp_binary_opl(INTERNAL_FUNCTION_PARAMETERS, gmp_binary_opl_t gmp_op)
{
zval **a_arg, **b_arg;
mpz_t *gmpnum_a, *gmpnum_b;
int temp_a, temp_b;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ZZ", &a_arg, &b_arg) == FAILURE){
return;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg, temp_a);
FETCH_GMP_ZVAL(gmpnum_b, b_arg, temp_b);
RETVAL_LONG(gmp_op(*gmpnum_a, *gmpnum_b));
FREE_GMP_TEMP(temp_a);
FREE_GMP_TEMP(temp_b);
}
/* }}} */
/* {{{ proto resource gmp_init(mixed number [, int base])
Initializes GMP number */
ZEND_FUNCTION(gmp_init)
{
zval **number_arg;
mpz_t * gmpnumber;
long base=0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z|l", &number_arg, &base) == FAILURE) {
return;
}
if (base && (base < 2 || base > MAX_BASE)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Bad base for conversion: %ld (should be between 2 and %d)", base, MAX_BASE);
RETURN_FALSE;
}
if (convert_to_gmp(&gmpnumber, number_arg, base TSRMLS_CC) == FAILURE) {
RETURN_FALSE;
}
/* Write your own code here to handle argument number. */
ZEND_REGISTER_RESOURCE(return_value, gmpnumber, le_gmp);
}
/* }}} */
/* {{{ proto int gmp_intval(resource gmpnumber)
Gets signed long value of GMP number */
ZEND_FUNCTION(gmp_intval)
{
zval **gmpnumber_arg;
mpz_t * gmpnum;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z", &gmpnumber_arg) == FAILURE){
return;
}
if (Z_TYPE_PP(gmpnumber_arg) == IS_RESOURCE) {
ZEND_FETCH_RESOURCE(gmpnum, mpz_t *, gmpnumber_arg, -1, GMP_RESOURCE_NAME, le_gmp);
RETVAL_LONG(mpz_get_si(*gmpnum));
} else {
convert_to_long_ex(gmpnumber_arg);
RETVAL_LONG(Z_LVAL_PP(gmpnumber_arg));
}
}
/* }}} */
/* {{{ proto string gmp_strval(resource gmpnumber [, int base])
Gets string representation of GMP number */
ZEND_FUNCTION(gmp_strval)
{
zval **gmpnumber_arg;
int num_len;
long base = 10;
mpz_t * gmpnum;
char *out_string;
int temp_a;
if( zend_parse_parameters( ZEND_NUM_ARGS() TSRMLS_CC, "Z|l", &gmpnumber_arg, &base ) == FAILURE ) {
return;
}
#if MAX_BASE == 62
/* Although the maximum base in general in GMP >= 4.2 is 62, mpz_get_str()
* is explicitly limited to -36 when dealing with negative bases. */
if ((base < 2 && base > -2) || base > MAX_BASE || base < -36) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Bad base for conversion: %ld (should be between 2 and %d or -2 and -36)", base, MAX_BASE);
#else
if (base < 2 || base > MAX_BASE) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Bad base for conversion: %ld (should be between 2 and %d)", base, MAX_BASE);
#endif
RETURN_FALSE;
}
FETCH_GMP_ZVAL(gmpnum, gmpnumber_arg, temp_a);
num_len = mpz_sizeinbase(*gmpnum, abs(base));
out_string = emalloc(num_len+2);
if (mpz_sgn(*gmpnum) < 0) {
num_len++;
}
mpz_get_str(out_string, base, *gmpnum);
FREE_GMP_TEMP(temp_a);
/*
From GMP documentation for mpz_sizeinbase():
The returned value will be exact or 1 too big. If base is a power of
2, the returned value will always be exact.
So let's check to see if we already have a \0 byte...
*/
if (out_string[num_len-1] == '\0') {
num_len--;
} else {
out_string[num_len] = '\0';
}
RETVAL_STRINGL(out_string, num_len, 0);
}
/* }}} */
/* {{{ proto resource gmp_add(resource a, resource b)
Add a and b */
ZEND_FUNCTION(gmp_add)
{
gmp_binary_ui_op(mpz_add, (gmp_binary_ui_op_t)mpz_add_ui);
}
/* }}} */
/* {{{ proto resource gmp_sub(resource a, resource b)
Subtract b from a */
ZEND_FUNCTION(gmp_sub)
{
gmp_binary_ui_op(mpz_sub, (gmp_binary_ui_op_t)mpz_sub_ui);
}
/* }}} */
/* {{{ proto resource gmp_mul(resource a, resource b)
Multiply a and b */
ZEND_FUNCTION(gmp_mul)
{
gmp_binary_ui_op(mpz_mul, (gmp_binary_ui_op_t)mpz_mul_ui);
}
/* }}} */
/* {{{ proto array gmp_div_qr(resource a, resource b [, int round])
Divide a by b, returns quotient and reminder */
ZEND_FUNCTION(gmp_div_qr)
{
zval **a_arg, **b_arg;
long round = GMP_ROUND_ZERO;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ZZ|l", &a_arg, &b_arg, &round) == FAILURE) {
return;
}
switch (round) {
case GMP_ROUND_ZERO:
gmp_zval_binary_ui_op2_ex(return_value, a_arg, b_arg, mpz_tdiv_qr, (gmp_binary_ui_op2_t)mpz_tdiv_qr_ui, 0, 1 TSRMLS_CC);
break;
case GMP_ROUND_PLUSINF:
gmp_zval_binary_ui_op2_ex(return_value, a_arg, b_arg, mpz_cdiv_qr, (gmp_binary_ui_op2_t)mpz_cdiv_qr_ui, 0, 1 TSRMLS_CC);
break;
case GMP_ROUND_MINUSINF:
gmp_zval_binary_ui_op2_ex(return_value, a_arg, b_arg, mpz_fdiv_qr, (gmp_binary_ui_op2_t)mpz_fdiv_qr_ui, 0, 1 TSRMLS_CC);
break;
}
}
/* }}} */
/* {{{ proto resource gmp_div_r(resource a, resource b [, int round])
Divide a by b, returns reminder only */
ZEND_FUNCTION(gmp_div_r)
{
zval **a_arg, **b_arg;
long round = GMP_ROUND_ZERO;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ZZ|l", &a_arg, &b_arg, &round) == FAILURE) {
return;
}
switch (round) {
case GMP_ROUND_ZERO:
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_tdiv_r, (gmp_binary_ui_op_t)mpz_tdiv_r_ui, 1, 1, 1 TSRMLS_CC);
break;
case GMP_ROUND_PLUSINF:
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_cdiv_r, (gmp_binary_ui_op_t)mpz_cdiv_r_ui, 1, 1, 1 TSRMLS_CC);
break;
case GMP_ROUND_MINUSINF:
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_fdiv_r, (gmp_binary_ui_op_t)mpz_fdiv_r_ui, 1, 1, 1 TSRMLS_CC);
break;
}
}
/* }}} */
/* {{{ proto resource gmp_div_q(resource a, resource b [, int round])
Divide a by b, returns quotient only */
ZEND_FUNCTION(gmp_div_q)
{
zval **a_arg, **b_arg;
long round = GMP_ROUND_ZERO;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ZZ|l", &a_arg, &b_arg, &round) == FAILURE) {
return;
}
switch (round) {
case GMP_ROUND_ZERO:
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_tdiv_q, (gmp_binary_ui_op_t)mpz_tdiv_q_ui, 0, 1, 1 TSRMLS_CC);
break;
case GMP_ROUND_PLUSINF:
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_cdiv_q, (gmp_binary_ui_op_t)mpz_cdiv_q_ui, 0, 1, 1 TSRMLS_CC);
break;
case GMP_ROUND_MINUSINF:
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_fdiv_q, (gmp_binary_ui_op_t)mpz_fdiv_q_ui, 0, 1, 1 TSRMLS_CC);
break;
}
}
/* }}} */
/* {{{ proto resource gmp_mod(resource a, resource b)
Computes a modulo b */
ZEND_FUNCTION(gmp_mod)
{
zval **a_arg, **b_arg;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ZZ", &a_arg, &b_arg) == FAILURE){
return;
}
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_mod, (gmp_binary_ui_op_t)mpz_mod_ui, 1, 1, 0 TSRMLS_CC);
}
/* }}} */
/* {{{ proto resource gmp_divexact(resource a, resource b)
Divide a by b using exact division algorithm */
ZEND_FUNCTION(gmp_divexact)
{
zval **a_arg, **b_arg;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ZZ", &a_arg, &b_arg) == FAILURE){
return;
}
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_divexact, NULL, 0, 1, 1 TSRMLS_CC);
}
/* }}} */
/* {{{ proto resource gmp_neg(resource a)
Negates a number */
ZEND_FUNCTION(gmp_neg)
{
gmp_unary_op(mpz_neg);
}
/* }}} */
/* {{{ proto resource gmp_abs(resource a)
Calculates absolute value */
ZEND_FUNCTION(gmp_abs)
{
gmp_unary_op(mpz_abs);
}
/* }}} */
/* {{{ proto resource gmp_fact(int a)
Calculates factorial function */