ParagonIE_Sodium_Core32_Int32::shiftRight() public WP 1.0

{} It's a method of the class: ParagonIE_Sodium_Core32_Int32{}

No Hooks.

Return

ParagonIE_Sodium_Core32_Int32. Null. Nothing.

Usage

$ParagonIE_Sodium_Core32_Int32 = new ParagonIE_Sodium_Core32_Int32();
$ParagonIE_Sodium_Core32_Int32->shiftRight( $c );

$c(int)

-

Code of ParagonIE_Sodium_Core32_Int32::shiftRight() ParagonIE Sodium Core32 Int32::shiftRight ^{WP 5.7.1}

<?php
public function shiftRight($c = 0)
{
    ParagonIE_Sodium_Core32_Util::declareScalarType($c, 'int', 1);
    /** @var int $c */
    $c = (int) $c;

    $return = new ParagonIE_Sodium_Core32_Int32();
    $return->unsignedInt = $this->unsignedInt;
    $c &= 63;
    /** @var int $c */
    if ($c >= 16) {
        $return->limbs = array(
            (int) ($this->overflow & 0xffff),
            (int) ($this->limbs[0])
        );
        $return->overflow = $this->overflow >> 16;
        return $return->shiftRight($c & 15);
    }
    if ($c === 0) {
        $return->limbs = $this->limbs;
    } elseif ($c < 0) {
        /** @var int $c */
        return $this->shiftLeft(-$c);
    } else {
        if (!is_int($c)) {
            throw new TypeError();
        }
        /** @var int $c */
        // $return->limbs[0] = (int) (($this->limbs[0] >> $c) & 0xffff);
        $carryLeft = (int) ($this->overflow & ((1 << ($c + 1)) - 1));
        $return->limbs[0] = (int) ((($this->limbs[0] >> $c) | ($carryLeft << (16 - $c))) & 0xffff);
        $carryRight = (int) ($this->limbs[0] & ((1 << ($c + 1)) - 1));
        $return->limbs[1] = (int) ((($this->limbs[1] >> $c) | ($carryRight << (16 - $c))) & 0xffff);
        $return->overflow >>= $c;
    }
    return $return;
}