/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- ZEND_GET_MODULE
- PHP_GSHUTDOWN_FUNCTION
- PHP_MINIT_FUNCTION
- PHP_MSHUTDOWN_FUNCTION
- PHP_MINFO_FUNCTION
- php_str2num
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2013 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: Andi Gutmans <andi@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#if HAVE_BCMATH
#include "php_ini.h"
#include "ext/standard/info.h"
#include "php_bcmath.h"
#include "libbcmath/src/bcmath.h"
ZEND_DECLARE_MODULE_GLOBALS(bcmath)
static PHP_GINIT_FUNCTION(bcmath);
static PHP_GSHUTDOWN_FUNCTION(bcmath);
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_bcadd, 0, 0, 2)
ZEND_ARG_INFO(0, left_operand)
ZEND_ARG_INFO(0, right_operand)
ZEND_ARG_INFO(0, scale)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_bcsub, 0, 0, 2)
ZEND_ARG_INFO(0, left_operand)
ZEND_ARG_INFO(0, right_operand)
ZEND_ARG_INFO(0, scale)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_bcmul, 0, 0, 2)
ZEND_ARG_INFO(0, left_operand)
ZEND_ARG_INFO(0, right_operand)
ZEND_ARG_INFO(0, scale)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_bcdiv, 0, 0, 2)
ZEND_ARG_INFO(0, left_operand)
ZEND_ARG_INFO(0, right_operand)
ZEND_ARG_INFO(0, scale)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_bcmod, 0)
ZEND_ARG_INFO(0, left_operand)
ZEND_ARG_INFO(0, right_operand)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_bcpowmod, 0, 0, 3)
ZEND_ARG_INFO(0, x)
ZEND_ARG_INFO(0, y)
ZEND_ARG_INFO(0, mod)
ZEND_ARG_INFO(0, scale)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_bcpow, 0, 0, 2)
ZEND_ARG_INFO(0, x)
ZEND_ARG_INFO(0, y)
ZEND_ARG_INFO(0, scale)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_bcsqrt, 0, 0, 1)
ZEND_ARG_INFO(0, operand)
ZEND_ARG_INFO(0, scale)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_bccomp, 0, 0, 2)
ZEND_ARG_INFO(0, left_operand)
ZEND_ARG_INFO(0, right_operand)
ZEND_ARG_INFO(0, scale)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_bcscale, 0)
ZEND_ARG_INFO(0, scale)
ZEND_END_ARG_INFO()
/* }}} */
const zend_function_entry bcmath_functions[] = {
PHP_FE(bcadd, arginfo_bcadd)
PHP_FE(bcsub, arginfo_bcsub)
PHP_FE(bcmul, arginfo_bcmul)
PHP_FE(bcdiv, arginfo_bcdiv)
PHP_FE(bcmod, arginfo_bcmod)
PHP_FE(bcpow, arginfo_bcpow)
PHP_FE(bcsqrt, arginfo_bcsqrt)
PHP_FE(bcscale, arginfo_bcscale)
PHP_FE(bccomp, arginfo_bccomp)
PHP_FE(bcpowmod, arginfo_bcpowmod)
PHP_FE_END
};
zend_module_entry bcmath_module_entry = {
STANDARD_MODULE_HEADER,
"bcmath",
bcmath_functions,
PHP_MINIT(bcmath),
PHP_MSHUTDOWN(bcmath),
NULL,
NULL,
PHP_MINFO(bcmath),
NO_VERSION_YET,
PHP_MODULE_GLOBALS(bcmath),
PHP_GINIT(bcmath),
PHP_GSHUTDOWN(bcmath),
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
#ifdef COMPILE_DL_BCMATH
ZEND_GET_MODULE(bcmath)
#endif
/* {{{ PHP_INI */
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("bcmath.scale", "0", PHP_INI_ALL, OnUpdateLongGEZero, bc_precision, zend_bcmath_globals, bcmath_globals)
PHP_INI_END()
/* }}} */
/* {{{ PHP_GINIT_FUNCTION
*/
static PHP_GINIT_FUNCTION(bcmath)
{
bcmath_globals->bc_precision = 0;
bc_init_numbers(TSRMLS_C);
}
/* }}} */
/* {{{ PHP_GSHUTDOWN_FUNCTION
*/
static PHP_GSHUTDOWN_FUNCTION(bcmath)
{
_bc_free_num_ex(&bcmath_globals->_zero_, 1);
_bc_free_num_ex(&bcmath_globals->_one_, 1);
_bc_free_num_ex(&bcmath_globals->_two_, 1);
}
/* }}} */
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(bcmath)
{
REGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION
*/
PHP_MSHUTDOWN_FUNCTION(bcmath)
{
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(bcmath)
{
php_info_print_table_start();
php_info_print_table_row(2, "BCMath support", "enabled");
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
/* {{{ php_str2num
Convert to bc_num detecting scale */
static void php_str2num(bc_num *num, char *str TSRMLS_DC)
{
char *p;
if (!(p = strchr(str, '.'))) {
bc_str2num(num, str, 0 TSRMLS_CC);
return;
}
bc_str2num(num, str, strlen(p+1) TSRMLS_CC);
}
/* }}} */
/* {{{ proto string bcadd(string left_operand, string right_operand [, int scale])
Returns the sum of two arbitrary precision numbers */
PHP_FUNCTION(bcadd)
{
char *left, *right;
long scale_param = 0;
bc_num first, second, result;
int left_len, right_len;
int scale = BCG(bc_precision), argc = ZEND_NUM_ARGS();
if (zend_parse_parameters(argc TSRMLS_CC, "ss|l", &left, &left_len, &right, &right_len, &scale_param) == FAILURE) {
return;
}
if (argc == 3) {
scale = (int) ((int)scale_param < 0) ? 0 : scale_param;
}
bc_init_num(&first TSRMLS_CC);
bc_init_num(&second TSRMLS_CC);
bc_init_num(&result TSRMLS_CC);
php_str2num(&first, left TSRMLS_CC);
php_str2num(&second, right TSRMLS_CC);
bc_add (first, second, &result, scale);
if (result->n_scale > scale) {
result->n_scale = scale;
}
Z_STRVAL_P(return_value) = bc_num2str(result);
Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
Z_TYPE_P(return_value) = IS_STRING;
bc_free_num(&first);
bc_free_num(&second);
bc_free_num(&result);
return;
}
/* }}} */
/* {{{ proto string bcsub(string left_operand, string right_operand [, int scale])
Returns the difference between two arbitrary precision numbers */
PHP_FUNCTION(bcsub)
{
char *left, *right;
int left_len, right_len;
long scale_param = 0;
bc_num first, second, result;
int scale = BCG(bc_precision), argc = ZEND_NUM_ARGS();
if (zend_parse_parameters(argc TSRMLS_CC, "ss|l", &left, &left_len, &right, &right_len, &scale_param) == FAILURE) {
return;
}
if (argc == 3) {
scale = (int) ((int)scale_param < 0) ? 0 : scale_param;
}
bc_init_num(&first TSRMLS_CC);
bc_init_num(&second TSRMLS_CC);
bc_init_num(&result TSRMLS_CC);
php_str2num(&first, left TSRMLS_CC);
php_str2num(&second, right TSRMLS_CC);
bc_sub (first, second, &result, scale);
if (result->n_scale > scale) {
result->n_scale = scale;
}
Z_STRVAL_P(return_value) = bc_num2str(result);
Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
Z_TYPE_P(return_value) = IS_STRING;
bc_free_num(&first);
bc_free_num(&second);
bc_free_num(&result);
return;
}
/* }}} */
/* {{{ proto string bcmul(string left_operand, string right_operand [, int scale])
Returns the multiplication of two arbitrary precision numbers */
PHP_FUNCTION(bcmul)
{
char *left, *right;
int left_len, right_len;
long scale_param = 0;
bc_num first, second, result;
int scale = BCG(bc_precision), argc = ZEND_NUM_ARGS();
if (zend_parse_parameters(argc TSRMLS_CC, "ss|l", &left, &left_len, &right, &right_len, &scale_param) == FAILURE) {
return;
}
if (argc == 3) {
scale = (int) ((int)scale_param < 0) ? 0 : scale_param;
}
bc_init_num(&first TSRMLS_CC);
bc_init_num(&second TSRMLS_CC);
bc_init_num(&result TSRMLS_CC);
php_str2num(&first, left TSRMLS_CC);
php_str2num(&second, right TSRMLS_CC);
bc_multiply (first, second, &result, scale TSRMLS_CC);
if (result->n_scale > scale) {
result->n_scale = scale;
}
Z_STRVAL_P(return_value) = bc_num2str(result);
Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
Z_TYPE_P(return_value) = IS_STRING;
bc_free_num(&first);
bc_free_num(&second);
bc_free_num(&result);
return;
}
/* }}} */
/* {{{ proto string bcdiv(string left_operand, string right_operand [, int scale])
Returns the quotient of two arbitrary precision numbers (division) */
PHP_FUNCTION(bcdiv)
{
char *left, *right;
int left_len, right_len;
long scale_param = 0;
bc_num first, second, result;
int scale = BCG(bc_precision), argc = ZEND_NUM_ARGS();
if (zend_parse_parameters(argc TSRMLS_CC, "ss|l", &left, &left_len, &right, &right_len, &scale_param) == FAILURE) {
return;
}
if (argc == 3) {
scale = (int) ((int)scale_param < 0) ? 0 : scale_param;
}
bc_init_num(&first TSRMLS_CC);
bc_init_num(&second TSRMLS_CC);
bc_init_num(&result TSRMLS_CC);
php_str2num(&first, left TSRMLS_CC);
php_str2num(&second, right TSRMLS_CC);
switch (bc_divide(first, second, &result, scale TSRMLS_CC)) {
case 0: /* OK */
if (result->n_scale > scale) {
result->n_scale = scale;
}
Z_STRVAL_P(return_value) = bc_num2str(result);
Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
Z_TYPE_P(return_value) = IS_STRING;
break;
case -1: /* division by zero */
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Division by zero");
break;
}
bc_free_num(&first);
bc_free_num(&second);
bc_free_num(&result);
return;
}
/* }}} */
/* {{{ proto string bcmod(string left_operand, string right_operand)
Returns the modulus of the two arbitrary precision operands */
PHP_FUNCTION(bcmod)
{
char *left, *right;
int left_len, right_len;
bc_num first, second, result;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &left, &left_len, &right, &right_len) == FAILURE) {
return;
}
bc_init_num(&first TSRMLS_CC);
bc_init_num(&second TSRMLS_CC);
bc_init_num(&result TSRMLS_CC);
bc_str2num(&first, left, 0 TSRMLS_CC);
bc_str2num(&second, right, 0 TSRMLS_CC);
switch (bc_modulo(first, second, &result, 0 TSRMLS_CC)) {
case 0:
Z_STRVAL_P(return_value) = bc_num2str(result);
Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
Z_TYPE_P(return_value) = IS_STRING;
break;
case -1:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Division by zero");
break;
}
bc_free_num(&first);
bc_free_num(&second);
bc_free_num(&result);
return;
}
/* }}} */
/* {{{ proto string bcpowmod(string x, string y, string mod [, int scale])
Returns the value of an arbitrary precision number raised to the power of another reduced by a modulous */
PHP_FUNCTION(bcpowmod)
{
char *left, *right, *modulous;
int left_len, right_len, modulous_len;
bc_num first, second, mod, result;
long scale = BCG(bc_precision);
int scale_int;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sss|l", &left, &left_len, &right, &right_len, &modulous, &modulous_len, &scale) == FAILURE) {
return;
}
bc_init_num(&first TSRMLS_CC);
bc_init_num(&second TSRMLS_CC);
bc_init_num(&mod TSRMLS_CC);
bc_init_num(&result TSRMLS_CC);
php_str2num(&first, left TSRMLS_CC);
php_str2num(&second, right TSRMLS_CC);
php_str2num(&mod, modulous TSRMLS_CC);
scale_int = (int) ((int)scale < 0) ? 0 : scale;
if (bc_raisemod(first, second, mod, &result, scale_int TSRMLS_CC) != -1) {
if (result->n_scale > scale) {
result->n_scale = scale;
}
Z_STRVAL_P(return_value) = bc_num2str(result);
Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
Z_TYPE_P(return_value) = IS_STRING;
} else {
RETVAL_FALSE;
}
bc_free_num(&first);
bc_free_num(&second);
bc_free_num(&mod);
bc_free_num(&result);
return;
}
/* }}} */
/* {{{ proto string bcpow(string x, string y [, int scale])
Returns the value of an arbitrary precision number raised to the power of another */
PHP_FUNCTION(bcpow)
{
char *left, *right;
int left_len, right_len;
long scale_param = 0;
bc_num first, second, result;
int scale = BCG(bc_precision), argc = ZEND_NUM_ARGS();
if (zend_parse_parameters(argc TSRMLS_CC, "ss|l", &left, &left_len, &right, &right_len, &scale_param) == FAILURE) {
return;
}
if (argc == 3) {
scale = (int) ((int)scale_param < 0) ? 0 : scale_param;
}
bc_init_num(&first TSRMLS_CC);
bc_init_num(&second TSRMLS_CC);
bc_init_num(&result TSRMLS_CC);
php_str2num(&first, left TSRMLS_CC);
php_str2num(&second, right TSRMLS_CC);
bc_raise (first, second, &result, scale TSRMLS_CC);
if (result->n_scale > scale) {
result->n_scale = scale;
}
Z_STRVAL_P(return_value) = bc_num2str(result);
Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
Z_TYPE_P(return_value) = IS_STRING;
bc_free_num(&first);
bc_free_num(&second);
bc_free_num(&result);
return;
}
/* }}} */
/* {{{ proto string bcsqrt(string operand [, int scale])
Returns the square root of an arbitray precision number */
PHP_FUNCTION(bcsqrt)
{
char *left;
int left_len;
long scale_param = 0;
bc_num result;
int scale = BCG(bc_precision), argc = ZEND_NUM_ARGS();
if (zend_parse_parameters(argc TSRMLS_CC, "s|l", &left, &left_len, &scale_param) == FAILURE) {
return;
}
if (argc == 2) {
scale = (int) ((int)scale_param < 0) ? 0 : scale_param;
}
bc_init_num(&result TSRMLS_CC);
php_str2num(&result, left TSRMLS_CC);
if (bc_sqrt (&result, scale TSRMLS_CC) != 0) {
if (result->n_scale > scale) {
result->n_scale = scale;
}
Z_STRVAL_P(return_value) = bc_num2str(result);
Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
Z_TYPE_P(return_value) = IS_STRING;
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Square root of negative number");
}
bc_free_num(&result);
return;
}
/* }}} */
/* {{{ proto int bccomp(string left_operand, string right_operand [, int scale])
Compares two arbitrary precision numbers */
PHP_FUNCTION(bccomp)
{
char *left, *right;
int left_len, right_len;
long scale_param = 0;
bc_num first, second;
int scale = BCG(bc_precision), argc = ZEND_NUM_ARGS();
if (zend_parse_parameters(argc TSRMLS_CC, "ss|l", &left, &left_len, &right, &right_len, &scale_param) == FAILURE) {
return;
}
if (argc == 3) {
scale = (int) ((int)scale_param < 0) ? 0 : scale_param;
}
bc_init_num(&first TSRMLS_CC);
bc_init_num(&second TSRMLS_CC);
bc_str2num(&first, left, scale TSRMLS_CC);
bc_str2num(&second, right, scale TSRMLS_CC);
Z_LVAL_P(return_value) = bc_compare(first, second);
Z_TYPE_P(return_value) = IS_LONG;
bc_free_num(&first);
bc_free_num(&second);
return;
}
/* }}} */
/* {{{ proto bool bcscale(int scale)
Sets default scale parameter for all bc math functions */
PHP_FUNCTION(bcscale)
{
long new_scale;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &new_scale) == FAILURE) {
return;
}
BCG(bc_precision) = ((int)new_scale < 0) ? 0 : new_scale;
RETURN_TRUE;
}
/* }}} */
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/