Here is a list of all enum values with links to the classes they belong to:

FP : delegate::detail::DelegateImpl< A, R >, delegate::detail::DelegateImpl< void, R >, delegate::detail::DelegatePImpl< A, R, P >, delegate::detail::DelegatePImpl< void, R, P... >
FPA : delegate::detail::DelegateImpl< A, R >, delegate::detail::DelegatePImpl< A, R, P >
FUNC : delegate::detail::DelegateImpl< A, R >, delegate::detail::DelegateImpl< void, R >, delegate::detail::DelegatePImpl< A, R, P >, delegate::detail::DelegatePImpl< void, R, P... >