diff options
Diffstat (limited to 'vendor/zendframework/zend-math/src/BigInteger/Adapter/Bcmath.php')
| -rw-r--r-- | vendor/zendframework/zend-math/src/BigInteger/Adapter/Bcmath.php | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/vendor/zendframework/zend-math/src/BigInteger/Adapter/Bcmath.php b/vendor/zendframework/zend-math/src/BigInteger/Adapter/Bcmath.php deleted file mode 100644 index 62b6869..0000000 --- a/vendor/zendframework/zend-math/src/BigInteger/Adapter/Bcmath.php +++ /dev/null @@ -1,334 +0,0 @@ -<?php -/** - * Zend Framework (http://framework.zend.com/) - * - * @link http://github.com/zendframework/zf2 for the canonical source repository - * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) - * @license http://framework.zend.com/license/new-bsd New BSD License - */ - -namespace Zend\Math\BigInteger\Adapter; - -use Zend\Math\BigInteger\Exception; - -/** - * Bcmath extension adapter - */ -class Bcmath implements AdapterInterface -{ - /** - * Constructor - * Sets Bcmath scale factor to zero - */ - public function __construct() - { - bcscale(0); - } - - /** - * Create string representing big integer in decimal form from arbitrary integer format - * - * @param string $operand - * @param int|null $base - * @return bool|string - */ - public function init($operand, $base = null) - { - $sign = (strpos($operand, '-') === 0) ? '-' : ''; - $operand = ltrim($operand, '-+'); - - if (null === $base) { - // decimal - if (preg_match('#^([1-9][0-9]*)$#', $operand, $m)) { - $base = 10; - $operand = $m[1]; - // octal - } elseif (preg_match('#^(0[0-7]+)$#', $operand, $m)) { - $base = 8; - $operand = $m[1]; - // hex - } elseif (preg_match('#^(?:0x)?([0-9a-f]+)$#', strtolower($operand), $m)) { - $base = 16; - $operand = $m[1]; - // scientific notation - } elseif (preg_match('#^([1-9]?\.?[0-9]+)[eE]\+?([0-9]+)$#', $operand, $m)) { - $base = 10; - $operand = bcmul($m[1], bcpow('10', $m[2])); - } else { - return false; - } - } - - if ($base != 10) { - $operand = $this->baseConvert($operand, $base, 10); - } - - $prod = bcmul($operand, '1'); - if (bccomp($operand, $prod) !== 0) { - return false; - } - - return $sign . $operand; - } - - /** - * Add two big integers - * - * @param string $leftOperand - * @param string $rightOperand - * @return string - */ - public function add($leftOperand, $rightOperand) - { - return bcadd($leftOperand, $rightOperand); - } - - /** - * Subtract two big integers - * - * @param string $leftOperand - * @param string $rightOperand - * @return string - */ - public function sub($leftOperand, $rightOperand) - { - return bcsub($leftOperand, $rightOperand); - } - - /** - * Multiply two big integers - * - * @param string $leftOperand - * @param string $rightOperand - * @return string - */ - public function mul($leftOperand, $rightOperand) - { - return bcmul($leftOperand, $rightOperand); - } - - /** - * Divide two big integers and return integer part result. - * Raises exception if the divisor is zero. - * - * @param string $leftOperand - * @param string $rightOperand - * @return string - * @throws Exception\DivisionByZeroException - */ - public function div($leftOperand, $rightOperand) - { - if ($rightOperand == 0) { - throw new Exception\DivisionByZeroException( - "Division by zero; divisor = {$rightOperand}" - ); - } - - $result = bcdiv($leftOperand, $rightOperand); - - return $result; - } - - /** - * Raise a big integers to another - * - * @param string $operand - * @param string $exp - * @return string - */ - public function pow($operand, $exp) - { - return bcpow($operand, $exp); - } - - /** - * Get the square root of a big integer - * - * @param string $operand - * @return string - */ - public function sqrt($operand) - { - return bcsqrt($operand); - } - - /** - * Get absolute value of a big integer - * - * @param string $operand - * @return string - */ - public function abs($operand) - { - return ltrim($operand, '-'); - } - - /** - * Get modulus of a big integer - * - * @param string $leftOperand - * @param string $rightOperand - * @return string - */ - public function mod($leftOperand, $rightOperand) - { - return bcmod($leftOperand, $rightOperand); - } - - /** - * Raise a big integer to another, reduced by a specified modulus - * - * @param string $leftOperand - * @param string $rightOperand - * @param string $modulus - * @return string - */ - public function powmod($leftOperand, $rightOperand, $modulus) - { - return bcpowmod($leftOperand, $rightOperand, $modulus); - } - - /** - * Compare two big integers and returns result as an integer where - * Returns < 0 if leftOperand is less than rightOperand; - * > 0 if leftOperand is greater than rightOperand, and 0 if they are equal. - * - * @param string $leftOperand - * @param string $rightOperand - * @return int - */ - public function comp($leftOperand, $rightOperand) - { - return bccomp($leftOperand, $rightOperand); - } - - /** - * Convert big integer into it's binary number representation - * - * @param string $operand - * @param bool $twoc return in two's complement form - * @return string - */ - public function intToBin($operand, $twoc = false) - { - $nb = chr(0); - $isNegative = (strpos($operand, '-') === 0); - $operand = ltrim($operand, '+-0'); - - if (empty($operand)) { - return $nb; - } - - if ($isNegative && $twoc) { - $operand = bcsub($operand, '1'); - } - - $bytes = ''; - while (bccomp($operand, '0', 0) > 0) { - $temp = bcmod($operand, '16777216'); - $bytes = chr($temp >> 16) . chr($temp >> 8) . chr($temp) . $bytes; - $operand = bcdiv($operand, '16777216'); - } - $bytes = ltrim($bytes, $nb); - - if ($twoc) { - if (ord($bytes[0]) & 0x80) { - $bytes = $nb . $bytes; - } - return $isNegative ? ~$bytes : $bytes; - } - - return $bytes; - } - - /** - * Convert big integer into it's binary number representation - * - * @param string $bytes - * @param bool $twoc whether binary number is in twos' complement form - * @return string - */ - public function binToInt($bytes, $twoc = false) - { - $isNegative = ((ord($bytes[0]) & 0x80) && $twoc); - - if ($isNegative) { - $bytes = ~$bytes; - } - - $len = (strlen($bytes) + 3) & 0xfffffffc; - $bytes = str_pad($bytes, $len, chr(0), STR_PAD_LEFT); - - $result = '0'; - for ($i = 0; $i < $len; $i += 4) { - $result = bcmul($result, '4294967296'); // 2**32 - $result = bcadd($result, 0x1000000 * ord($bytes[$i]) + - ((ord($bytes[$i + 1]) << 16) | - (ord($bytes[$i + 2]) << 8) | - ord($bytes[$i + 3]))); - } - - if ($isNegative) { - $result = bcsub('-' . $result, '1'); - } - - return $result; - } - - /** - * Base conversion. Bases 2..62 are supported - * - * @param string $operand - * @param int $fromBase - * @param int $toBase - * @return string - * @throws Exception\InvalidArgumentException - */ - public function baseConvert($operand, $fromBase, $toBase = 10) - { - if ($fromBase == $toBase) { - return $operand; - } - - if ($fromBase < 2 || $fromBase > 62) { - throw new Exception\InvalidArgumentException( - "Unsupported base: {$fromBase}, should be 2..62" - ); - } - if ($toBase < 2 || $toBase > 62) { - throw new Exception\InvalidArgumentException( - "Unsupported base: {$toBase}, should be 2..62" - ); - } - - $sign = (strpos($operand, '-') === 0) ? '-' : ''; - $operand = ltrim($operand, '-+'); - - $chars = self::BASE62_ALPHABET; - - // convert to decimal - if ($fromBase == 10) { - $decimal = $operand; - } else { - $decimal = '0'; - for ($i = 0, $len = strlen($operand); $i < $len; $i++) { - $decimal = bcmul($decimal, $fromBase); - $decimal = bcadd($decimal, strpos($chars, $operand[$i])); - } - } - - if ($toBase == 10) { - return $decimal; - } - - // convert decimal to base - $result = ''; - do { - $remainder = bcmod($decimal, $toBase); - $decimal = bcdiv($decimal, $toBase); - $result = $chars[$remainder] . $result; - } while (bccomp($decimal, '0')); - - return $sign . $result; - } -} |