std::experimental::ranges::DerivedFrom
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Defined in header
<experimental/ranges/concepts>
template< class T, class U >
(ranges TS)
concept bool DerivedFrom =
std::is_base_of <U, T>::value &&
The concept DerivedFrom<T, U> is satisfied if and only if U is a class type that is either T or a public and unambiguous base of T.
Despite the use of std::is_base_of and std::is_convertible in its description above, DerivedFrom is not required to use it in its implementation. Thus, there need not be any subsumption relationship between DerivedFrom<T, U> and std::is_base_of <U,T>::value or std::is_convertible <std::remove_cv_t <T>*, std::remove_cv_t <U>*>::value.