...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
template <class T>
struct integral_promotion
{
typedef see-below
type;
};
template <class T> using integral_promotion_t = typename integral_promotion<T>::type; // C++11 and above
type: If integral promotion can be applied
to an rvalue of type T
, then
applies integral promotion to T
and keeps cv-qualifiers of T
,
otherwise leaves T
unchanged.
C++ Standard Reference: 4.5 except 4.5/3 (integral bit-field).
Header: #include
<boost/type_traits/integral_promotion.hpp>
or #include <boost/type_traits.hpp>
Table 1.24. Examples
Expression |
Result Type |
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