wp-includes/sodium_compat/src/Core/BLAKE2b.php:90Adds two 64-bit integers together, returning their sum as a SplFixedArray containing two 32-bit integers (representing a 64-bit integer).
$xSplFixedArray$ySplFixedArraySplFixedArray protected static function add64($x, $y) { if (PHP_INT_SIZE === 4) { throw new SodiumException("Error, use 32-bit"); } $l = ($x[1] + $y[1]) & 0xffffffff; return self::new64( (int) ($x[0] + $y[0] + ( ($l < $x[1]) ? 1 : 0 )), (int) $l ); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/sodium_compat/src/Core/BLAKE2b.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.