Scroll to navigation

std::experimental::void_t(3) C++ Standard Libary std::experimental::void_t(3)


std::experimental::void_t - std::experimental::void_t


Defined in header <experimental/type_traits>
template< class... > (library fundamentals TS v2)
using void_t = void;

A utility metafunction that maps a sequence of any types to the type void.


This utility metafunction is used in template metaprogramming to detect ill-formed
types in SFINAE context. First voted into C++17 as std::void_t, it was later added
as well to the library fundamentals TS as std::experimental::void_t, because it is a
dependency of the detection idiom and the LFTS v2 is based on C++14.

See also

void_t void variadic alias template
(C++17) (alias template)