std::experimental::in_place - std::experimental::in_place
Defined in header <experimental/optional>
constexpr in_place_t in_place{}; (library fundamentals TS)
std::experimental::in_place is a constant of type
std::experimental::in_place_t that
is used to disambiguate the overloads of constructors and member functions of
that
take arguments (possibly a parameter pack) for in-place construction of some
value.
in_place
in_place_type
in_place_index in-place construction tag
in_place_t (class template)
in_place_type_t
in_place_index_t
(C++17)
optional a wrapper that may or may not hold an object
(C++17) (class template)