Extract container utils

src/common/utils/container.hpp

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <string>
+#include <string_view>
+#include <unordered_set>
+#include <unordered_map>
+
+namespace utils
+{
+	struct string_hash
+	{
+		using is_transparent = void;
+
+		size_t operator()(const std::string_view str) const
+		{
+			constexpr std::hash<std::string_view> hasher{};
+			return hasher(str);
+		}
+	};
+
+	template <typename T>
+	using unordered_string_map = std::unordered_map<std::string, T, string_hash, std::equal_to<>>;
+
+	using unordered_string_set = std::unordered_set<std::string, string_hash, std::equal_to<>>;
+}