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编辑当前文件:/home2/sdektunc/.trash/libraries.3/vendor/fgrosse/phpasn1/lib/Utility/BigIntegerBcmath.php
_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; } }