Enum type information in C++/CLI

Testing a generic parameter for enum type information

generic <class TValue>
...MyMethod()
{
  // Testing a generic parameter for enum type information
  
  System::Type^ enumType = TValue::typeid;
  // Only enum types supported
  if (!enumType->IsEnum) 
  {
    throw gcnew System::ArgumentException("...");
  }
  // Only 32 bit integer enum types are supported
  if (System::Enum::GetUnderlyingType(enumType) != System::Int32::typeid) 
  { 
    throw gcnew System::ArgumentException("...");
  }
  // [Flags] type enums not supported
  array<System::Object^>^ attributes = enumType->
    GetCustomAttributes(System::FlagsAttribute::typeid, false);
  if (attributes->Length != 0) 
  {
    throw gcnew System::ArgumentException("...");
  }
}