From 1c92b7543670f320e42d106c2fd77596a93fe7f3 Mon Sep 17 00:00:00 2001
From: Christian Flothmann <christian.flothmann@qossmic.com>
Date: Thu, 4 Jul 2024 11:47:16 +0200
Subject: [PATCH] explicitly mark argument $alg as nullable

Implicitly marking it as nullable is deprecated starting with PHP 8.4.
---
 src/Compat.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Compat.php b/src/Compat.php
index 6c020a98..5bbf2a35 100644
--- a/src/Compat.php
+++ b/src/Compat.php
@@ -1863,7 +1863,7 @@ public static function crypto_pwhash(
         string $salt,
         int $opslimit,
         int $memlimit,
-        int $alg = null
+        ?int $alg = null
     ): string {
         if (self::useNewSodiumAPI()) {
             if (!is_null($alg)) {