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template <class T>
struct decay
{
typedef see-below type;
};
template <class T> using decay_t = typename decay<T>::type; // C++11 and above
type: Let U
be the result of remove_reference<T>::type, then if U
is an array type, the result is remove_extent<U>::type*,
otherwise if U is a function
type then the result is U*, otherwise the result is U.
C++ Standard Reference: 3.9.1.
Header: #include
<boost/type_traits/decay.hpp>
or #include <boost/type_traits.hpp>
Table 1.18. Examples
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Expression |
Result Type |
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Compiler Compatibility: All current compilers are supported by this trait.