common: Add StringLiteral

src/common/CMakeLists.txt

@@ -104,6 +104,7 @@ add_library(common STATIC
     serialization/boost_flat_set.h
     serialization/boost_small_vector.hpp
     serialization/boost_vector.hpp
+    string_literal.h
     string_util.cpp
     string_util.h
     swap.h

src/common/string_literal.h

@@ -0,0 +1,24 @@
+// Copyright 2022 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <algorithm>
+#include <cstddef>
+
+namespace Common {
+
+template <size_t N>
+struct StringLiteral {
+    constexpr StringLiteral(const char (&str)[N]) {
+        std::copy_n(str, N, value);
+    }
+
+    static constexpr std::size_t strlen = N - 1;
+    static constexpr std::size_t size = N;
+
+    char value[N];
+};
+
+} // namespace Common