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<?php
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declare(strict_types=1);
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namespace Brick\Math\Exception;
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/**
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* Exception thrown when a division by zero occurs.
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*/
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class DivisionByZeroException extends MathException
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{
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/**
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* @return DivisionByZeroException
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*
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* @psalm-pure
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*/
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public static function divisionByZero() : DivisionByZeroException
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{
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return new self('Division by zero.');
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}
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/**
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* @return DivisionByZeroException
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*
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* @psalm-pure
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*/
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public static function modulusMustNotBeZero() : DivisionByZeroException
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{
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return new self('The modulus must not be zero.');
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}
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/**
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* @return DivisionByZeroException
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*
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* @psalm-pure
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*/
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public static function denominatorMustNotBeZero() : DivisionByZeroException
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{
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return new self('The denominator of a rational number cannot be zero.');
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}
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}
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<?php
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declare(strict_types=1);
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namespace Brick\Math\Exception;
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use Brick\Math\BigInteger;
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/**
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* Exception thrown when an integer overflow occurs.
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*/
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class IntegerOverflowException extends MathException
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{
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/**
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* @param BigInteger $value
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*
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* @return IntegerOverflowException
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*
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* @psalm-pure
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*/
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public static function toIntOverflow(BigInteger $value) : IntegerOverflowException
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{
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$message = '%s is out of range %d to %d and cannot be represented as an integer.';
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return new self(\sprintf($message, (string) $value, PHP_INT_MIN, PHP_INT_MAX));
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}
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}
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<?php
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declare(strict_types=1);
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namespace Brick\Math\Exception;
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/**
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* Base class for all math exceptions.
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*
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* This class is abstract to ensure that only fine-grained exceptions are thrown throughout the code.
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*/
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class MathException extends \RuntimeException
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{
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}
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<?php
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declare(strict_types=1);
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namespace Brick\Math\Exception;
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/**
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* Exception thrown when attempting to perform an unsupported operation, such as a square root, on a negative number.
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*/
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class NegativeNumberException extends MathException
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{
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}
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<?php
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declare(strict_types=1);
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namespace Brick\Math\Exception;
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/**
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* Exception thrown when attempting to create a number from a string with an invalid format.
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*/
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class NumberFormatException extends MathException
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{
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/**
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* @param string $char The failing character.
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*
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* @return NumberFormatException
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*
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* @psalm-pure
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*/
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public static function charNotInAlphabet(string $char) : self
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{
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$ord = \ord($char);
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if ($ord < 32 || $ord > 126) {
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$char = \strtoupper(\dechex($ord));
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if ($ord < 10) {
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$char = '0' . $char;
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}
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} else {
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$char = '"' . $char . '"';
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}
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return new self(sprintf('Char %s is not a valid character in the given alphabet.', $char));
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}
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}
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@ -1,21 +0,0 @@
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<?php
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declare(strict_types=1);
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namespace Brick\Math\Exception;
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/**
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* Exception thrown when a number cannot be represented at the requested scale without rounding.
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*/
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class RoundingNecessaryException extends MathException
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{
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/**
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* @return RoundingNecessaryException
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*
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* @psalm-pure
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*/
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public static function roundingNecessary() : RoundingNecessaryException
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{
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return new self('Rounding is necessary to represent the result of the operation at this scale.');
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}
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}
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