From baa2768a6980a015117d3df001f33faa34e1eb57 Mon Sep 17 00:00:00 2001
From: Elad Ashkenazi <elad3356p@gmail.com>
Date: Sat, 17 Dec 2022 20:21:54 +0200
Subject: [PATCH] StrUtil.h: Prevent an overflow in strcpy_trunc

---
 Utilities/StrUtil.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Utilities/StrUtil.h b/Utilities/StrUtil.h
index aefedc9556..432f18d924 100644
--- a/Utilities/StrUtil.h
+++ b/Utilities/StrUtil.h
@@ -16,7 +16,7 @@ std::string utf16_to_utf8(std::u16string_view src);
 template <typename D, typename T>
 inline void strcpy_trunc(D& dst, const T& src)
 {
-	const usz count = std::size(src) >= std::size(dst) ? std::size(dst) - 1 : std::size(src);
+	const usz count = std::size(src) >= std::size(dst) ? std::max<usz>(std::size(dst), 1) - 1 : std::size(src);
 	std::memcpy(std::data(dst), std::data(src), count);
 	std::memset(std::data(dst) + count, 0, std::size(dst) - count);
 }