function NativeCalculator::pad

Pads the left of one of the given numbers with zeros if necessary to make both numbers the same length.

The numbers must only consist of digits, without leading minus sign.

Return value

array{string, string, int}

2 calls to NativeCalculator::pad()

NativeCalculator::doAdd in vendor/brick/math/src/Internal/Calculator/NativeCalculator.php

Performs the addition of two non-signed large integers.

NativeCalculator::doSub in vendor/brick/math/src/Internal/Calculator/NativeCalculator.php

Performs the subtraction of two non-signed large integers.

File

vendor/brick/math/src/Internal/Calculator/NativeCalculator.php, line 553

Class

NativeCalculator

Calculator implementation using only native PHP code.

Namespace

Brick\Math\Internal\Calculator

Code

private function pad(string $a, string $b) : array {
    $x = \strlen($a);
    $y = \strlen($b);
    if ($x > $y) {
        $b = \str_repeat('0', $x - $y) . $b;
        return [
            $a,
            $b,
            $x,
        ];
    }
    if ($x < $y) {
        $a = \str_repeat('0', $y - $x) . $a;
        return [
            $a,
            $b,
            $y,
        ];
    }
    return [
        $a,
        $b,
        $x,
    ];
}