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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:39:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:39:39 +0000 |
commit | 8ca6cc32b2c789a3149861159ad258f2cb9491e3 (patch) | |
tree | 2492de6f1528dd44eaa169a5c1555026d9cb75ec /library/vendor/Zend/Locale/Math/PhpMath.php | |
parent | Initial commit. (diff) | |
download | icingaweb2-a598b28402ead15d3701df32e198513e7b1f299c.tar.xz icingaweb2-a598b28402ead15d3701df32e198513e7b1f299c.zip |
Adding upstream version 2.11.4.upstream/2.11.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | library/vendor/Zend/Locale/Math/PhpMath.php | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/library/vendor/Zend/Locale/Math/PhpMath.php b/library/vendor/Zend/Locale/Math/PhpMath.php new file mode 100644 index 0000000..6d774c2 --- /dev/null +++ b/library/vendor/Zend/Locale/Math/PhpMath.php @@ -0,0 +1,239 @@ +<?php +/** + * Zend Framework + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE.txt. + * It is also available through the world-wide-web at this URL: + * http://framework.zend.com/license/new-bsd + * If you did not receive a copy of the license and are unable to + * obtain it through the world-wide-web, please send an email + * to license@zend.com so we can send you a copy immediately. + * + * @category Zend + * @package Zend_Locale + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id$ + */ + + +/** + * Utility class for proxying math function to bcmath functions, if present, + * otherwise to PHP builtin math operators, with limited detection of overflow conditions. + * Sampling of PHP environments and platforms suggests that at least 80% to 90% support bcmath. + * This file should only be loaded for the 10% to 20% lacking access to the bcmath extension. + * + * @category Zend + * @package Zend_Locale + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +class Zend_Locale_Math_PhpMath extends Zend_Locale_Math +{ + public static function disable() + { + self::$_bcmathDisabled = true; + self::$add = array('Zend_Locale_Math_PhpMath', 'Add'); + self::$sub = array('Zend_Locale_Math_PhpMath', 'Sub'); + self::$pow = array('Zend_Locale_Math_PhpMath', 'Pow'); + self::$mul = array('Zend_Locale_Math_PhpMath', 'Mul'); + self::$div = array('Zend_Locale_Math_PhpMath', 'Div'); + self::$comp = array('Zend_Locale_Math_PhpMath', 'Comp'); + self::$sqrt = array('Zend_Locale_Math_PhpMath', 'Sqrt'); + self::$mod = array('Zend_Locale_Math_PhpMath', 'Mod'); + self::$scale = array('Zend_Locale_Math_PhpMath', 'Scale'); + + self::$defaultScale = 0; + self::$defaultPrecision = 1; + } + + public static $defaultScale; + public static $defaultPrecision; + + + public static function Add($op1, $op2, $scale = null) + { + if ($scale === null) { + $scale = Zend_Locale_Math_PhpMath::$defaultScale; + $precision = Zend_Locale_Math_PhpMath::$defaultPrecision; + } else { + $precision = pow(10, -$scale); + } + + if (empty($op1)) { + $op1 = 0; + } + $op1 = self::normalize($op1); + $op2 = self::normalize($op2); + $result = $op1 + $op2; + if (is_infinite($result) or (abs($result - $op2 - $op1) > $precision)) { + throw new Zend_Locale_Math_Exception("addition overflow: $op1 + $op2 != $result", $op1, $op2, $result); + } + + return self::round(self::normalize($result), $scale); + } + + public static function Sub($op1, $op2, $scale = null) + { + if ($scale === null) { + $scale = Zend_Locale_Math_PhpMath::$defaultScale; + $precision = Zend_Locale_Math_PhpMath::$defaultPrecision; + } else { + $precision = pow(10, -$scale); + } + + if (empty($op1)) { + $op1 = 0; + } + $op1 = self::normalize($op1); + $op2 = self::normalize($op2); + $result = $op1 - $op2; + if (is_infinite($result) or (abs($result + $op2 - $op1) > $precision)) { + throw new Zend_Locale_Math_Exception("subtraction overflow: $op1 - $op2 != $result", $op1, $op2, $result); + } + + return self::round(self::normalize($result), $scale); + } + + public static function Pow($op1, $op2, $scale = null) + { + if ($scale === null) { + $scale = Zend_Locale_Math_PhpMath::$defaultScale; + } + + $op1 = self::normalize($op1); + $op2 = self::normalize($op2); + + // BCMath extension doesn't use decimal part of the power + // Provide the same behavior + $op2 = ($op2 > 0) ? floor($op2) : ceil($op2); + + $result = pow($op1, $op2); + if (is_infinite($result) or is_nan($result)) { + throw new Zend_Locale_Math_Exception("power overflow: $op1 ^ $op2", $op1, $op2, $result); + } + + return self::round(self::normalize($result), $scale); + } + + public static function Mul($op1, $op2, $scale = null) + { + if ($scale === null) { + $scale = Zend_Locale_Math_PhpMath::$defaultScale; + } + + if (empty($op1)) { + $op1 = 0; + } + $op1 = self::normalize($op1); + $op2 = self::normalize($op2); + $result = $op1 * $op2; + if (is_infinite($result) or is_nan($result)) { + throw new Zend_Locale_Math_Exception("multiplication overflow: $op1 * $op2 != $result", $op1, $op2, $result); + } + + return self::round(self::normalize($result), $scale); + } + + public static function Div($op1, $op2, $scale = null) + { + if ($scale === null) { + $scale = Zend_Locale_Math_PhpMath::$defaultScale; + } + + if (empty($op2)) { + throw new Zend_Locale_Math_Exception("can not divide by zero", $op1, $op2, null); + } + if (empty($op1)) { + $op1 = 0; + } + $op1 = self::normalize($op1); + $op2 = self::normalize($op2); + $result = $op1 / $op2; + if (is_infinite($result) or is_nan($result)) { + throw new Zend_Locale_Math_Exception("division overflow: $op1 / $op2 != $result", $op1, $op2, $result); + } + + return self::round(self::normalize($result), $scale); + } + + public static function Sqrt($op1, $scale = null) + { + if ($scale === null) { + $scale = Zend_Locale_Math_PhpMath::$defaultScale; + } + + if (empty($op1)) { + $op1 = 0; + } + $op1 = self::normalize($op1); + $result = sqrt($op1); + if (is_nan($result)) { + return NULL; + } + + return self::round(self::normalize($result), $scale); + } + + public static function Mod($op1, $op2) + { + if (empty($op1)) { + $op1 = 0; + } + if (empty($op2)) { + return NULL; + } + $op1 = self::normalize($op1); + $op2 = self::normalize($op2); + if ((int)$op2 == 0) { + return NULL; + } + $result = $op1 % $op2; + if (is_nan($result) or (($op1 - $result) % $op2 != 0)) { + throw new Zend_Locale_Math_Exception("modulus calculation error: $op1 % $op2 != $result", $op1, $op2, $result); + } + + return self::normalize($result); + } + + public static function Comp($op1, $op2, $scale = null) + { + if ($scale === null) { + $scale = Zend_Locale_Math_PhpMath::$defaultScale; + } + + if (empty($op1)) { + $op1 = 0; + } + $op1 = self::normalize($op1); + $op2 = self::normalize($op2); + if ($scale <> 0) { + $op1 = self::round($op1, $scale); + $op2 = self::round($op2, $scale); + } else { + $op1 = ($op1 > 0) ? floor($op1) : ceil($op1); + $op2 = ($op2 > 0) ? floor($op2) : ceil($op2); + } + if ($op1 > $op2) { + return 1; + } else if ($op1 < $op2) { + return -1; + } + return 0; + } + + public static function Scale($scale) + { + if ($scale > 9) { + throw new Zend_Locale_Math_Exception("can not scale to precision $scale", $scale, null, null); + } + self::$defaultScale = $scale; + self::$defaultPrecision = pow(10, -$scale); + return true; + } +} + +Zend_Locale_Math_PhpMath::disable(); // disable use of bcmath functions |