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function is not described

ParagonIE_Sodium_Core_Salsa20::rotate() public WP 1.0

{} It's a method of the class: ParagonIE_Sodium_Core_Salsa20{}

No Hooks.

Return

Int. Null. Nothing.

Usage

$result = ParagonIE_Sodium_Core_Salsa20::rotate( $u, $c );
$u(int) (required)
-
$c(int) (required)
-

Code of ParagonIE_Sodium_Core_Salsa20::rotate() WP 5.7.1

<?php
public static function rotate($u, $c)
{
    $u &= 0xffffffff;
    $c %= 32;
    return (int) (0xffffffff & (
            ($u << $c)
                |
            ($u >> (32 - $c))
        )
    );
}