copy_cv

template <class T, class U>
struct copy_cv
{
   typedef see-below type;
};

template <class T, class U> using copy_cv_t = typename copy_cv<T, U>::type; // C++11 and above

type: T cv, where cv are the cv-qualifiers of U.

Header: #include <boost/type_traits/copy_cv.hpp> or #include <boost/type_traits.hpp>

Table 1.17. Examples

Expression	Result Type
`copy_cv<int, void>::type`	`int`
`copy_cv<int const, void>::type`	`int const`
`copy_cv<int, void const>::type`	`int const`
`copy_cv<int volatile, void const>::type`	`int const volatile`
`copy_cv<int&, void const>::type`	`int&`
`copy_cv<int*, void volatile>::type`	`int* volatile`

Boost C++ Libraries

copy_cv