From b15ab697c2475b0e011cff6216f61f87a6614b1a Mon Sep 17 00:00:00 2001
From: Simon Rozman <simon@rozman.si>
Date: Thu, 7 Dec 2023 12:25:35 +0100
Subject: [PATCH] string: add strnlen variant for known fixed-size buffers

---
 include/stdex/string.hpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/stdex/string.hpp b/include/stdex/string.hpp
index b79b581f5..af271c7e5 100644
--- a/include/stdex/string.hpp
+++ b/include/stdex/string.hpp
@@ -268,6 +268,19 @@ namespace stdex
 		return i;
 	}
 
+	///
+	/// Calculate zero-terminated string length.
+	///
+	/// \param[in] str  String
+	///
+	/// \return Number of code units excluding zero terminator in the string.
+	///
+	template <class T, size_t SIZE>
+	inline size_t strnlen(_In_ const T (&str)[SIZE])
+	{
+		return strnlen(str, SIZE);
+	}
+
 	constexpr auto npos{ static_cast<size_t>(-1) };
 
 	///