wp-includes/sodium_compat/src/Core32/Int32.php:831ParagonIE_Sodium_Core32_Int64 public function toInt64() { $return = new ParagonIE_Sodium_Core32_Int64(); $return->unsignedInt = $this->unsignedInt; if ($this->unsignedInt) { $return->limbs[0] += (($this->overflow >> 16) & 0xffff); $return->limbs[1] += (($this->overflow) & 0xffff); } else { $neg = -(($this->limbs[0] >> 15) & 1); $return->limbs[0] = (int)($neg & 0xffff); $return->limbs[1] = (int)($neg & 0xffff); } $return->limbs[2] = (int) ($this->limbs[0] & 0xffff); $return->limbs[3] = (int) ($this->limbs[1] & 0xffff); return $return; }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/Core32/Int32.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.