diff options
Diffstat (limited to 'vendor/brick/math/src/Internal/Calculator.php')
| -rw-r--r-- | vendor/brick/math/src/Internal/Calculator.php | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/vendor/brick/math/src/Internal/Calculator.php b/vendor/brick/math/src/Internal/Calculator.php index 99bebbe5d..a6eac799f 100644 --- a/vendor/brick/math/src/Internal/Calculator.php +++ b/vendor/brick/math/src/Internal/Calculator.php @@ -34,8 +34,10 @@ abstract class Calculator /** * The Calculator instance in use. + * + * @var Calculator|null */ - private static ?Calculator $instance = null; + private static $instance; /** * Sets the Calculator instance to use. @@ -232,7 +234,7 @@ abstract class Calculator * @param string $a The dividend. * @param string $b The divisor, must not be zero. * - * @return array{string, string} An array containing the quotient and remainder. + * @return string[] An array containing the quotient and remainder. */ abstract public function divQR(string $a, string $b) : array; @@ -281,7 +283,9 @@ abstract class Calculator $modVal = $this->mod($x, $m); } - [$g, $x] = $this->gcdExtended($modVal, $m); + $x = '0'; + $y = '0'; + $g = $this->gcdExtended($modVal, $m, $x, $y); if ($g !== '1') { return null; @@ -325,21 +329,24 @@ abstract class Calculator return $this->gcd($b, $this->divR($a, $b)); } - /** - * @return array{string, string, string} GCD, X, Y - */ - private function gcdExtended(string $a, string $b) : array + private function gcdExtended(string $a, string $b, string &$x, string &$y) : string { if ($a === '0') { - return [$b, '0', '1']; + $x = '0'; + $y = '1'; + + return $b; } - [$gcd, $x1, $y1] = $this->gcdExtended($this->mod($b, $a), $a); + $x1 = '0'; + $y1 = '0'; + + $gcd = $this->gcdExtended($this->mod($b, $a), $a, $x1, $y1); $x = $this->sub($y1, $this->mul($this->divQ($b, $a), $x1)); $y = $x1; - return [$gcd, $x, $y]; + return $gcd; } /** @@ -486,8 +493,6 @@ abstract class Calculator * * @throws \InvalidArgumentException If the rounding mode is invalid. * @throws RoundingNecessaryException If RoundingMode::UNNECESSARY is provided but rounding is necessary. - * - * @psalm-suppress ImpureFunctionCall */ final public function divRound(string $a, string $b, int $roundingMode) : string { @@ -611,9 +616,9 @@ abstract class Calculator /** * Performs a bitwise operation on a decimal number. * - * @param 'and'|'or'|'xor' $operator The operator to use. - * @param string $a The left operand. - * @param string $b The right operand. + * @param string $operator The operator to use, must be "and", "or" or "xor". + * @param string $a The left operand. + * @param string $b The right operand. * * @return string */ |