diff options
Diffstat (limited to 'vendor/fgrosse/phpasn1/lib/Utility/BigIntegerBcmath.php')
| -rw-r--r-- | vendor/fgrosse/phpasn1/lib/Utility/BigIntegerBcmath.php | 266 |
1 files changed, 133 insertions, 133 deletions
diff --git a/vendor/fgrosse/phpasn1/lib/Utility/BigIntegerBcmath.php b/vendor/fgrosse/phpasn1/lib/Utility/BigIntegerBcmath.php index 25ad891..833b72d 100644 --- a/vendor/fgrosse/phpasn1/lib/Utility/BigIntegerBcmath.php +++ b/vendor/fgrosse/phpasn1/lib/Utility/BigIntegerBcmath.php @@ -1,133 +1,133 @@ -<?php -/* - * This file is part of the PHPASN1 library. - * - * For the full copyright and license information, please view the LICENSE - * file that was distributed with this source code. - */ - -namespace FG\Utility; - -/** - * Class BigIntegerBcmath - * Integer representation of big numbers using the bcmath library to perform large operations. - * @package FG\Utility - * @internal - */ -class BigIntegerBcmath extends BigInteger -{ - protected $_str; - - public function __clone() - { - // nothing needed to copy - } - - protected function _fromString($str) - { - $this->_str = (string)$str; - } - - protected function _fromInteger($integer) - { - $this->_str = (string)$integer; - } - - public function __toString() - { - return $this->_str; - } - - public function toInteger() - { - if ($this->compare(PHP_INT_MAX) > 0 || $this->compare(PHP_INT_MIN) < 0) { - throw new \OverflowException(sprintf('Can not represent %s as integer.', $this->_str)); - } - return (int)$this->_str; - } - - public function isNegative() - { - return bccomp($this->_str, '0', 0) < 0; - } - - protected function _unwrap($number) - { - if ($number instanceof self) { - return $number->_str; - } - return $number; - } - - public function compare($number) - { - return bccomp($this->_str, $this->_unwrap($number), 0); - } - - public function add($b) - { - $ret = new self(); - $ret->_str = bcadd($this->_str, $this->_unwrap($b), 0); - return $ret; - } - - public function subtract($b) - { - $ret = new self(); - $ret->_str = bcsub($this->_str, $this->_unwrap($b), 0); - return $ret; - } - - public function multiply($b) - { - $ret = new self(); - $ret->_str = bcmul($this->_str, $this->_unwrap($b), 0); - return $ret; - } - - public function modulus($b) - { - $ret = new self(); - if ($this->isNegative()) { - // bcmod handles negative numbers differently - $b = $this->_unwrap($b); - $ret->_str = bcsub($b, bcmod(bcsub('0', $this->_str, 0), $b), 0); - } - else { - $ret->_str = bcmod($this->_str, $this->_unwrap($b)); - } - return $ret; - } - - public function toPower($b) - { - $ret = new self(); - $ret->_str = bcpow($this->_str, $this->_unwrap($b), 0); - return $ret; - } - - public function shiftRight($bits = 8) - { - $ret = new self(); - $ret->_str = bcdiv($this->_str, bcpow('2', $bits)); - return $ret; - } - - public function shiftLeft($bits = 8) { - $ret = new self(); - $ret->_str = bcmul($this->_str, bcpow('2', $bits)); - return $ret; - } - - public function absoluteValue() - { - $ret = new self(); - if (-1 === bccomp($this->_str, '0', 0)) { - $ret->_str = bcsub('0', $this->_str, 0); - } - else { - $ret->_str = $this->_str; - } - return $ret; - } -} +<?php
+/*
+ * This file is part of the PHPASN1 library.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FG\Utility;
+
+/**
+ * Class BigIntegerBcmath
+ * Integer representation of big numbers using the bcmath library to perform large operations.
+ * @package FG\Utility
+ * @internal
+ */
+class BigIntegerBcmath extends BigInteger
+{
+ protected $_str;
+
+ public function __clone()
+ {
+ // nothing needed to copy
+ }
+
+ protected function _fromString($str)
+ {
+ $this->_str = (string)$str;
+ }
+
+ protected function _fromInteger($integer)
+ {
+ $this->_str = (string)$integer;
+ }
+
+ public function __toString()
+ {
+ return $this->_str;
+ }
+
+ public function toInteger()
+ {
+ if ($this->compare(PHP_INT_MAX) > 0 || $this->compare(PHP_INT_MIN) < 0) {
+ throw new \OverflowException(sprintf('Can not represent %s as integer.', $this->_str));
+ }
+ return (int)$this->_str;
+ }
+
+ public function isNegative()
+ {
+ return bccomp($this->_str, '0', 0) < 0;
+ }
+
+ protected function _unwrap($number)
+ {
+ if ($number instanceof self) {
+ return $number->_str;
+ }
+ return $number;
+ }
+
+ public function compare($number)
+ {
+ return bccomp($this->_str, $this->_unwrap($number), 0);
+ }
+
+ public function add($b)
+ {
+ $ret = new self();
+ $ret->_str = bcadd($this->_str, $this->_unwrap($b), 0);
+ return $ret;
+ }
+
+ public function subtract($b)
+ {
+ $ret = new self();
+ $ret->_str = bcsub($this->_str, $this->_unwrap($b), 0);
+ return $ret;
+ }
+
+ public function multiply($b)
+ {
+ $ret = new self();
+ $ret->_str = bcmul($this->_str, $this->_unwrap($b), 0);
+ return $ret;
+ }
+
+ public function modulus($b)
+ {
+ $ret = new self();
+ if ($this->isNegative()) {
+ // bcmod handles negative numbers differently
+ $b = $this->_unwrap($b);
+ $ret->_str = bcsub($b, bcmod(bcsub('0', $this->_str, 0), $b), 0);
+ }
+ else {
+ $ret->_str = bcmod($this->_str, $this->_unwrap($b));
+ }
+ return $ret;
+ }
+
+ public function toPower($b)
+ {
+ $ret = new self();
+ $ret->_str = bcpow($this->_str, $this->_unwrap($b), 0);
+ return $ret;
+ }
+
+ public function shiftRight($bits = 8)
+ {
+ $ret = new self();
+ $ret->_str = bcdiv($this->_str, bcpow('2', $bits));
+ return $ret;
+ }
+
+ public function shiftLeft($bits = 8) {
+ $ret = new self();
+ $ret->_str = bcmul($this->_str, bcpow('2', $bits));
+ return $ret;
+ }
+
+ public function absoluteValue()
+ {
+ $ret = new self();
+ if (-1 === bccomp($this->_str, '0', 0)) {
+ $ret->_str = bcsub('0', $this->_str, 0);
+ }
+ else {
+ $ret->_str = $this->_str;
+ }
+ return $ret;
+ }
+}
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