Files: wp-includes/sodium_compat/src/Core/BLAKE2b.php

Adds two 64-bit integers together, returning their sum as a SplFixedArray containing two 32-bit integers (representing a 64-bit integer).

Convert an arbitrary number into an SplFixedArray of two 32-bit integers that represents a 64-bit integer.

Turn two 32-bit integers into a fixed array representing a 64-bit integer.