early-access version 1255

src/common/concepts.h

@@ -0,0 +1,34 @@
+// Copyright 2020 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <type_traits>
+
+namespace Common {
+
+// Check if type is like an STL container
+template <typename T>
+concept IsSTLContainer = requires(T t) {
+    typename T::value_type;
+    typename T::iterator;
+    typename T::const_iterator;
+    // TODO(ogniK): Replace below is std::same_as<void> when MSVC supports it.
+    t.begin();
+    t.end();
+    t.cbegin();
+    t.cend();
+    t.data();
+    t.size();
+};
+
+// TODO: Replace with std::derived_from when the <concepts> header
+//       is available on all supported platforms.
+template <typename Derived, typename Base>
+concept DerivedFrom = requires {
+    std::is_base_of_v<Base, Derived>;
+    std::is_convertible_v<const volatile Derived*, const volatile Base*>;
+};
+
+} // namespace Common