From 69e2131d3a26807428f67dc2f823afd988da1bc7 Mon Sep 17 00:00:00 2001
From: Pavel Kirienko <pavel.kirienko@gmail.com>
Date: Fri, 6 Jan 2023 09:35:09 -0800
Subject: [PATCH] Fix integer overflow in the getRandomByte() example in the
 README (#20)

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 460985b..59c4b60 100644
--- a/README.md
+++ b/README.md
@@ -122,7 +122,9 @@ You can use this implementation based on `std::rand()`:
 
 auto kocherga::getRandomByte() -> std::uint8_t
 {
-    return static_cast<std::uint8_t>(std::rand() * std::numeric_limits<std::uint8_t>::max() / RAND_MAX);
+    const auto product =
+        static_cast<std::uint64_t>(std::rand()) * static_cast<std::uint64_t>(std::numeric_limits<std::uint8_t>::max());
+    return static_cast<std::uint8_t>(product / RAND_MAX);
 }
 
 int main()