std::__detector< _Default, _AlwaysVoid, _Op, _Args > - Implementation of the detection idiom (negative

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libstdc++                                        Tue Jul std::__detector<_Defau...lwaysVoid,_Op,_Args>(3cxx)

template<typename_Default,typename_AlwaysVoid,template<typename...>class_Op,typename..._Args>
       struct std::__detector< _Default, _AlwaysVoid, _Op, _Args >" Implementation of the detection idiom
       (negative case).

       Definition at line 2413 of file type_traits.

       std::__detector< _Default, _AlwaysVoid, _Op, _Args > - Implementation of the detection idiom (negative
       case).

PublicTypes
       using type = _Default
       using value_t = false_type