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php-src/ext/gmp/gmp.c
Ilia Alshanetsky 38ad0e9104 zend_error -> php_error_docref.
2003-01-24 16:29:40 +00:00

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/*
+----------------------------------------------------------------------+
| PHP Version 4 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2003 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.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>
/* If you declare any globals in php_gmp.h uncomment this:
ZEND_DECLARE_MODULE_GLOBALS(gmp)
*/
/* True global resources - no need for thread safety here */
static int le_gmp;
static unsigned char first_of_two_force_ref[] = { 2, BYREF_FORCE, BYREF_NONE };
/* {{{ gmp_functions[]
*/
function_entry gmp_functions[] = {
ZEND_FE(gmp_init, NULL)
ZEND_FE(gmp_intval, NULL)
ZEND_FE(gmp_strval, NULL)
ZEND_FE(gmp_add, NULL)
ZEND_FE(gmp_sub, NULL)
ZEND_FE(gmp_mul, NULL)
ZEND_FE(gmp_div_qr, NULL)
ZEND_FE(gmp_div_q, NULL)
ZEND_FE(gmp_div_r, NULL)
ZEND_FALIAS(gmp_div, gmp_div_q, NULL)
ZEND_FE(gmp_mod, NULL)
ZEND_FE(gmp_divexact, NULL)
ZEND_FE(gmp_neg, NULL)
ZEND_FE(gmp_abs, NULL)
ZEND_FE(gmp_fact, NULL)
ZEND_FE(gmp_sqrt, NULL)
ZEND_FE(gmp_sqrtrem, NULL)
ZEND_FE(gmp_pow, NULL)
ZEND_FE(gmp_powm, NULL)
ZEND_FE(gmp_perfect_square, NULL)
ZEND_FE(gmp_prob_prime, NULL)
ZEND_FE(gmp_gcd, NULL)
ZEND_FE(gmp_gcdext, NULL)
ZEND_FE(gmp_invert, NULL)
ZEND_FE(gmp_jacobi, NULL)
ZEND_FE(gmp_legendre, NULL)
ZEND_FE(gmp_cmp, NULL)
ZEND_FE(gmp_sign, NULL)
ZEND_FE(gmp_random, NULL)
ZEND_FE(gmp_and, NULL)
ZEND_FE(gmp_or, NULL)
ZEND_FE(gmp_com, NULL)
ZEND_FE(gmp_xor, NULL)
ZEND_FE(gmp_setbit, first_of_two_force_ref)
ZEND_FE(gmp_clrbit, first_of_two_force_ref)
ZEND_FE(gmp_scan0, NULL)
ZEND_FE(gmp_scan1, NULL)
ZEND_FE(gmp_popcount, NULL)
ZEND_FE(gmp_hamdist, NULL)
{NULL, NULL, NULL} /* Must be the last line in gmp_functions[] */
};
/* }}} */
/* {{{ gmp_module_entry
*/
zend_module_entry gmp_module_entry = {
STANDARD_MODULE_HEADER,
"gmp",
gmp_functions,
ZEND_MODULE_STARTUP_N(gmp),
ZEND_MODULE_SHUTDOWN_N(gmp),
NULL,
NULL,
ZEND_MODULE_INFO_N(gmp),
NO_VERSION_YET,
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#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
/* {{{ 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_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);
mp_set_memory_functions(gmp_emalloc, gmp_erealloc, gmp_efree);
return SUCCESS;
}
/* }}} */
/* {{{ ZEND_MSHUTDOWN_FUNCTION
*/
ZEND_MODULE_SHUTDOWN_D(gmp)
{
return SUCCESS;
}
/* }}} */
/* {{{ ZEND_MINFO_FUNCTION
*/
ZEND_MODULE_INFO_D(gmp)
{
php_info_print_table_start();
php_info_print_table_row(2, "gmp support", "enabled");
php_info_print_table_end();
/* Remove comments if you have entries in php.ini
DISPLAY_INI_ENTRIES();
*/
}
/* }}} */
/* Fetch zval to be GMP number.
Initially, zval can be also number or string */
#define FETCH_GMP_ZVAL(gmpnumber, zval) \
if(Z_TYPE_PP(zval) == IS_RESOURCE) { \
ZEND_FETCH_RESOURCE(gmpnumber, mpz_t *, zval, -1, GMP_RESOURCE_NAME, le_gmp);\
} else {\
if(convert_to_gmp(&gmpnumber, zval, 0 TSRMLS_CC) == FAILURE) {\
RETURN_FALSE;\
}\
ZEND_REGISTER_RESOURCE(NULL, gmpnumber, le_gmp);\
}
/* 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 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 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 TSRMLS_DC)
{
mpz_t *gmpnum_a, *gmpnum_b, *gmpnum_result;
unsigned long long_result=0;
int use_ui=0;
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
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);
}
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));
} else {
gmp_ui_op(*gmpnum_result, *gmpnum_a, (unsigned long)Z_LVAL_PP(b_arg));
}
} else {
gmp_op(*gmpnum_result, *gmpnum_a, *gmpnum_b);
}
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 TSRMLS_DC)
{
mpz_t *gmpnum_a, *gmpnum_b, *gmpnum_result1, *gmpnum_result2;
zval r;
int use_ui=0;
unsigned long long_result;
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
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);
}
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);
}
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_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &b_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
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;
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
INIT_GMP_NUM(gmpnum_result);
gmp_op(*gmpnum_result, *gmpnum_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) {
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_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &a_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
gmp_zval_unary_ui_op(return_value, a_arg, gmp_op);
}
/* }}} */
/* {{{ _gmp_unary_op
*/
static inline void _gmp_unary_op(INTERNAL_FUNCTION_PARAMETERS, gmp_unary_op_t gmp_op) {
zval **a_arg;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &a_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
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;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &a_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
RETURN_LONG(gmp_op(*gmpnum_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;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &b_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
FETCH_GMP_ZVAL(gmpnum_b, a_arg);
RETURN_LONG(gmp_op(*gmpnum_a, *gmpnum_b));
}
/* }}} */
/* {{{ proto resource gmp_init(mixed number [, int base])
Initializes GMP number */
ZEND_FUNCTION(gmp_init)
{
zval **number_arg, **base_arg;
mpz_t * gmpnumber;
int argc;
int base=0;
argc = ZEND_NUM_ARGS();
if (argc < 1 || argc > 2 || zend_get_parameters_ex(argc, &number_arg, &base_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
if (argc==2) {
convert_to_long_ex(base_arg);
base = Z_LVAL_PP(base_arg);
if(base < 2 || base > 36) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Bad base for conversion: %d (should be between 2 and 36)", 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_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &gmpnumber_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
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, **base_arg;
int base=10, num_len, argc;
mpz_t * gmpnum;
char *out_string;
argc = ZEND_NUM_ARGS();
if (argc < 1 || argc > 2 || zend_get_parameters_ex(argc, &gmpnumber_arg, &base_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum, gmpnumber_arg);
switch (argc) {
case 2:
convert_to_long_ex(base_arg);
base = Z_LVAL_PP(base_arg);
break;
case 1:
base = 10;
break;
}
if(base < 2 || base > 36) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Bad base for conversion: %d", base);
RETURN_FALSE;
}
num_len = mpz_sizeinbase(*gmpnum, base);
out_string = emalloc(num_len+2);
if(mpz_sgn(*gmpnum) < 0) {
num_len++;
}
mpz_get_str(out_string, base, *gmpnum);
/*
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, **round_arg;
int round=GMP_ROUND_ZERO, argc;
argc = ZEND_NUM_ARGS();
if (argc < 2 || argc > 3 || zend_get_parameters_ex(argc, &a_arg, &b_arg, &round_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
switch (argc) {
case 3:
convert_to_long_ex(round_arg);
round = Z_LVAL_PP(round_arg);
break;
case 2:
round = GMP_ROUND_ZERO;
break;
}
switch(round) {
case GMP_ROUND_ZERO:
gmp_zval_binary_ui_op2(return_value, a_arg, b_arg, mpz_tdiv_qr, (gmp_binary_ui_op2_t)mpz_tdiv_qr_ui);
break;
case GMP_ROUND_PLUSINF:
gmp_zval_binary_ui_op2(return_value, a_arg, b_arg, mpz_cdiv_qr, (gmp_binary_ui_op2_t)mpz_cdiv_qr_ui);
break;
case GMP_ROUND_MINUSINF:
gmp_zval_binary_ui_op2(return_value, a_arg, b_arg, mpz_fdiv_qr, (gmp_binary_ui_op2_t)mpz_fdiv_qr_ui);
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, **round_arg;
int round=GMP_ROUND_ZERO, argc;
argc = ZEND_NUM_ARGS();
if (argc < 2 || argc > 3 || zend_get_parameters_ex(argc, &a_arg, &b_arg, &round_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
switch (argc) {
case 3:
convert_to_long_ex(round_arg);
round = Z_LVAL_PP(round_arg);
break;
case 2:
round = GMP_ROUND_ZERO;
break;
}
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 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 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 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, **round_arg;
int round=GMP_ROUND_ZERO, argc;
argc = ZEND_NUM_ARGS();
if (argc < 2 || argc > 3 || zend_get_parameters_ex(argc, &a_arg, &b_arg, &round_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
switch (argc) {
case 3:
convert_to_long_ex(round_arg);
round = Z_LVAL_PP(round_arg);
break;
case 2:
round = GMP_ROUND_ZERO;
break;
}
switch(round) {
case GMP_ROUND_ZERO:
gmp_zval_binary_ui_op(return_value, a_arg, b_arg, mpz_tdiv_q, (gmp_binary_ui_op_t)mpz_tdiv_q_ui);
break;
case GMP_ROUND_PLUSINF:
gmp_zval_binary_ui_op(return_value, a_arg, b_arg, mpz_cdiv_q, (gmp_binary_ui_op_t)mpz_cdiv_q_ui);
break;
case GMP_ROUND_MINUSINF:
gmp_zval_binary_ui_op(return_value, a_arg, b_arg, mpz_fdiv_q, (gmp_binary_ui_op_t)mpz_fdiv_q_ui);
break;
}
}
/* }}} */
/* {{{ proto resource gmp_mod(resource a, resource b)
Computes a modulo b */
ZEND_FUNCTION(gmp_mod)
{
zval **a_arg, **b_arg;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &b_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_mod, (gmp_binary_ui_op_t)mpz_mod_ui, 1 TSRMLS_CC);
}
/* }}} */
/* {{{ proto resource gmp_divexact(resource a, resource b)
Divide a by b using exact division algorithm */
ZEND_FUNCTION(gmp_divexact)
{
gmp_binary_op(mpz_divexact);
}
/* }}} */
/* {{{ 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 */
ZEND_FUNCTION(gmp_fact)
{
gmp_unary_ui_op(mpz_fac_ui);
}
/* }}} */
/* {{{ proto resource gmp_pow(resource base, int exp)
Raise base to power exp */
ZEND_FUNCTION(gmp_pow)
{
zval **base_arg, **exp_arg;
mpz_t *gmpnum_result, *gmpnum_base;
int use_ui=0;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &base_arg, &exp_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
if(Z_TYPE_PP(base_arg) == IS_LONG && Z_LVAL_PP(base_arg) >= 0) {
use_ui=1;
} else {
FETCH_GMP_ZVAL(gmpnum_base, base_arg);
}
convert_to_long_ex(exp_arg);
if(Z_LVAL_PP(exp_arg) < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING,"Negative exponent not supported");
RETURN_FALSE;
}
INIT_GMP_NUM(gmpnum_result);
if(use_ui) {
mpz_ui_pow_ui(*gmpnum_result, Z_LVAL_PP(base_arg), Z_LVAL_PP(exp_arg));
} else {
mpz_pow_ui(*gmpnum_result, *gmpnum_base, Z_LVAL_PP(exp_arg));
}
ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);
}
/* }}} */
/* {{{ proto resource gmp_powm(resource base, resource exp, resource mod)
Raise base to power exp and take result modulo mod */
ZEND_FUNCTION(gmp_powm)
{
zval **base_arg, **exp_arg, **mod_arg;
mpz_t *gmpnum_base, *gmpnum_exp, *gmpnum_mod, *gmpnum_result;
int use_ui=0;
if (ZEND_NUM_ARGS() != 3 || zend_get_parameters_ex(3, &base_arg, &exp_arg, &mod_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_base, base_arg);
if(Z_TYPE_PP(exp_arg) == IS_LONG && Z_LVAL_PP(exp_arg) >= 0) {
use_ui=1;
} else {
FETCH_GMP_ZVAL(gmpnum_exp, exp_arg);
}
FETCH_GMP_ZVAL(gmpnum_mod, mod_arg);
INIT_GMP_NUM(gmpnum_result);
if(use_ui) {
mpz_powm_ui(*gmpnum_result, *gmpnum_base, (unsigned long)Z_LVAL_PP(exp_arg), *gmpnum_mod);
} else {
mpz_powm(*gmpnum_result, *gmpnum_base, *gmpnum_exp, *gmpnum_mod);
}
ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);
}
/* }}} */
/* {{{ proto resource gmp_sqrt(resource a)
Takes integer part of square root of a */
ZEND_FUNCTION(gmp_sqrt)
{
gmp_unary_op(mpz_sqrt);
}
/* }}} */
/* {{{ proto array gmp_sqrtrem(resource a)
Square root with remainder */
ZEND_FUNCTION(gmp_sqrtrem)
{
zval **a_arg;
mpz_t *gmpnum_a, *gmpnum_result1, *gmpnum_result2;
zval r;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &a_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
INIT_GMP_NUM(gmpnum_result1);
INIT_GMP_NUM(gmpnum_result2);
mpz_sqrtrem(*gmpnum_result1, *gmpnum_result2, *gmpnum_a);
array_init(return_value);
ZEND_REGISTER_RESOURCE(&r, gmpnum_result1, le_gmp);
add_index_resource(return_value, 0, Z_LVAL(r));
ZEND_REGISTER_RESOURCE(&r, gmpnum_result2, le_gmp);
add_index_resource(return_value, 1, Z_LVAL(r));
}
/* }}} */
/* {{{ proto bool gmp_perfect_square(resource a)
Checks if a is an exact square */
ZEND_FUNCTION(gmp_perfect_square)
{
zval **a_arg;
mpz_t *gmpnum_a;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &a_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
RETURN_BOOL((mpz_perfect_square_p(*gmpnum_a)!=0));
}
/* }}} */
/* {{{ proto int gmp_prob_prime(resource a[, int reps])
Checks if a is "probably prime" */
ZEND_FUNCTION(gmp_prob_prime)
{
zval **gmpnumber_arg, **reps_arg;
mpz_t *gmpnum_a;
int argc, reps=10;
argc = ZEND_NUM_ARGS();
if (argc < 1 || argc > 2 || zend_get_parameters_ex(argc, &gmpnumber_arg, &reps_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, gmpnumber_arg);
switch (argc) {
case 2:
convert_to_long_ex(reps_arg);
reps = Z_LVAL_PP(reps_arg);
break;
case 1:
reps = 10;
break;
}
RETURN_LONG(mpz_probab_prime_p(*gmpnum_a, reps));
}
/* }}} */
/* {{{ proto resource gmp_gcd(resource a, resource b)
Computes greatest common denominator (gcd) of a and b */
ZEND_FUNCTION(gmp_gcd)
{
zval **a_arg, **b_arg;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &b_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
gmp_zval_binary_ui_op_ex(return_value, a_arg, b_arg, mpz_gcd, (gmp_binary_ui_op_t)mpz_gcd_ui, 1 TSRMLS_CC);
}
/* }}} */
/* {{{ proto array gmp_gcdext(resource a, resource b)
Computes G, S, and T, such that AS + BT = G = `gcd' (A, B) */
ZEND_FUNCTION(gmp_gcdext)
{
zval **a_arg, **b_arg;
mpz_t *gmpnum_a, *gmpnum_b, *gmpnum_t, *gmpnum_s, *gmpnum_g;
zval r;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &b_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
FETCH_GMP_ZVAL(gmpnum_b, a_arg);
INIT_GMP_NUM(gmpnum_g);
INIT_GMP_NUM(gmpnum_s);
INIT_GMP_NUM(gmpnum_t);
mpz_gcdext(*gmpnum_g, *gmpnum_s, *gmpnum_t, *gmpnum_a, *gmpnum_b);
array_init(return_value);
ZEND_REGISTER_RESOURCE(&r, gmpnum_g, le_gmp);
add_assoc_resource(return_value, "g", Z_LVAL(r));
ZEND_REGISTER_RESOURCE(&r, gmpnum_s, le_gmp);
add_assoc_resource(return_value, "s", Z_LVAL(r));
ZEND_REGISTER_RESOURCE(&r, gmpnum_t, le_gmp);
add_assoc_resource(return_value, "t", Z_LVAL(r));
}
/* }}} */
/* {{{ proto resource gmp_invert(resource a, resource b)
Computes the inverse of a modulo b */
ZEND_FUNCTION(gmp_invert)
{
zval **a_arg, **b_arg;
mpz_t *gmpnum_a, *gmpnum_b, *gmpnum_result;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &b_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
FETCH_GMP_ZVAL(gmpnum_b, b_arg);
INIT_GMP_NUM(gmpnum_result);
if(mpz_invert(*gmpnum_result, *gmpnum_a, *gmpnum_b)) {
ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);
} else {
FREE_GMP_NUM(gmpnum_result);
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto int gmp_jacobi(resource a, resource b)
Computes Jacobi symbol */
ZEND_FUNCTION(gmp_jacobi)
{
gmp_binary_opl(mpz_jacobi);
}
/* }}} */
/* {{{ proto int gmp_legendre(resource a, resource b)
Computes Legendre symbol */
ZEND_FUNCTION(gmp_legendre)
{
gmp_binary_opl(mpz_legendre);
}
/* }}} */
/* {{{ proto int gmp_cmp(resource a, resource b)
Compares two numbers */
ZEND_FUNCTION(gmp_cmp)
{
zval **a_arg, **b_arg;
mpz_t *gmpnum_a, *gmpnum_b;
int use_si=0, res;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &b_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
if(Z_TYPE_PP(b_arg) == IS_LONG) {
use_si=1;
} else {
FETCH_GMP_ZVAL(gmpnum_b, b_arg);
}
if(use_si) {
res = mpz_cmp_si(*gmpnum_a, Z_LVAL_PP(b_arg));
} else {
res = mpz_cmp(*gmpnum_a, *gmpnum_b);
}
RETURN_LONG(res);
}
/* }}} */
/* {{{ proto int gmp_sign(resource a)
Gets the sign of the number */
ZEND_FUNCTION(gmp_sign)
{
zval **a_arg;
mpz_t *gmpnum_a;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &a_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
RETURN_LONG(mpz_sgn(*gmpnum_a));
}
/* }}} */
/* {{{ proto resource gmp_random([int limiter])
Gets random number */
ZEND_FUNCTION(gmp_random)
{
zval **limiter_arg;
int limiter, argc;
mpz_t *gmpnum_result;
argc = ZEND_NUM_ARGS();
if (argc < 0 || argc > 1 || zend_get_parameters_ex(1, &limiter_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
if(argc) {
convert_to_long_ex(limiter_arg);
limiter = Z_LVAL_PP(limiter_arg);
} else {
limiter = 20;
}
INIT_GMP_NUM(gmpnum_result);
mpz_random(*gmpnum_result, limiter);
ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);
}
/* }}} */
/* {{{ proto resource gmp_and(resource a, resource b)
Calculates logical AND of a and b */
ZEND_FUNCTION(gmp_and)
{
gmp_binary_op(mpz_and);
}
/* }}} */
/* {{{ proto resource gmp_or(resource a, resource b)
Calculates logical OR of a and b */
ZEND_FUNCTION(gmp_or)
{
gmp_binary_op(mpz_ior);
}
/* }}} */
/* {{{ proto resource gmp_com(resource a)
Calculates one's complement of a */
ZEND_FUNCTION(gmp_com)
{
gmp_unary_op(mpz_com);
}
/* }}} */
/* {{{ proto resource gmp_xor(resource a, resource b)
Calculates logical exclusive OR of a and b */
ZEND_FUNCTION(gmp_xor)
{
/* use formula: a^b = (a|b)&^(a&b) */
zval **a_arg, **b_arg;
mpz_t *gmpnum_a, *gmpnum_b, *gmpnum_result, *gmpnum_t;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &b_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
FETCH_GMP_ZVAL(gmpnum_b, b_arg);
INIT_GMP_NUM(gmpnum_result);
INIT_GMP_NUM(gmpnum_t);
mpz_and(*gmpnum_t, *gmpnum_a, *gmpnum_b);
mpz_com(*gmpnum_t, *gmpnum_t);
mpz_ior(*gmpnum_result, *gmpnum_a, *gmpnum_b);
mpz_and(*gmpnum_result, *gmpnum_result, *gmpnum_t);
FREE_GMP_NUM(gmpnum_t);
ZEND_REGISTER_RESOURCE(return_value, gmpnum_result, le_gmp);
}
/* }}} */
/* {{{ proto void gmp_setbit(resource &a, int index[, bool set_clear])
Sets or clear bit in a */
ZEND_FUNCTION(gmp_setbit)
{
zval **a_arg, **ind_arg, **set_c_arg;
int argc, index, set=1;
mpz_t *gmpnum_a;
argc = ZEND_NUM_ARGS();
if (argc < 2 || argc > 3 || zend_get_parameters_ex(argc, &a_arg, &ind_arg, &set_c_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
ZEND_FETCH_RESOURCE(gmpnum_a, mpz_t *, a_arg, -1, GMP_RESOURCE_NAME, le_gmp);
convert_to_long_ex(ind_arg);
index = Z_LVAL_PP(ind_arg);
switch (argc) {
case 3:
convert_to_long_ex(set_c_arg);
set = Z_LVAL_PP(set_c_arg);
break;
case 2:
set = 1;
break;
}
if(set) {
mpz_setbit(*gmpnum_a, index);
} else {
mpz_clrbit(*gmpnum_a, index);
}
}
/* }}} */
/* {{{ proto void gmp_clrbit(resource &a, int index)
Clears bit in a */
ZEND_FUNCTION(gmp_clrbit)
{
zval **a_arg, **ind_arg;
int index;
mpz_t *gmpnum_a;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &ind_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
ZEND_FETCH_RESOURCE(gmpnum_a, mpz_t *, a_arg, -1, GMP_RESOURCE_NAME, le_gmp);
convert_to_long_ex(ind_arg);
index = Z_LVAL_PP(ind_arg);
mpz_clrbit(*gmpnum_a, index);
}
/* }}} */
/* {{{ proto int gmp_popcount(resource a)
Calculates the population count of a */
ZEND_FUNCTION(gmp_popcount)
{
zval **a_arg;
mpz_t *gmpnum_a;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &a_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
RETURN_LONG(mpz_popcount(*gmpnum_a));
}
/* }}} */
/* {{{ proto int gmp_hamdist(resource a, resource b)
Calculates hamming distance between a and b */
ZEND_FUNCTION(gmp_hamdist)
{
zval **a_arg, **b_arg;
mpz_t *gmpnum_a, *gmpnum_b;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(1, &a_arg, &b_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
FETCH_GMP_ZVAL(gmpnum_b, b_arg);
RETURN_LONG(mpz_hamdist(*gmpnum_a, *gmpnum_b));
}
/* }}} */
/* {{{ proto int gmp_scan0(resource a, int start)
Finds first zero bit */
ZEND_FUNCTION(gmp_scan0)
{
zval **a_arg, **start_arg;
mpz_t *gmpnum_a;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &start_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
convert_to_long_ex(start_arg);
RETURN_LONG(mpz_scan0(*gmpnum_a, Z_LVAL_PP(start_arg)));
}
/* }}} */
/* {{{ proto int gmp_scan1(resource a, int start)
Finds first non-zero bit */
ZEND_FUNCTION(gmp_scan1)
{
zval **a_arg, **start_arg;
mpz_t *gmpnum_a;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &a_arg, &start_arg) == FAILURE){
WRONG_PARAM_COUNT;
}
FETCH_GMP_ZVAL(gmpnum_a, a_arg);
convert_to_long_ex(start_arg);
RETURN_LONG(mpz_scan1(*gmpnum_a, Z_LVAL_PP(start_arg)));
}
/* }}} */
/* {{{ _php_gmpnum_free
*/
static void _php_gmpnum_free(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
mpz_t *gmpnum = (mpz_t *)rsrc->ptr;
FREE_GMP_NUM(gmpnum);
}
/* }}} */
#endif /* HAVE_GMP */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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