fix to string of variant

alib2std/src/extensions/variant.hpp

@@ -104,7 +104,7 @@ struct variant_helper<F, Ts...> {
 	inline static std::string string(type_id_hash_code id, const void* data) {
 		if (id == typeid(F).hash_code())
-			return (std::string) *reinterpret_cast<const F*>(data);
+			return std::to_string ( *reinterpret_cast<const F*>(data) );
 		else
 			return variant_helper<Ts...>::string(id, data);
 	}