Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...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 alignment_of : public integral_constant<std::size_t, ALIGNOF(T)> {};
Inherits: Class template alignment_of
inherits from integral_constant<std::size_t, ALIGNOF(T)>,
where ALIGNOF(T) is the
alignment of type T.
Note: strictly speaking you should only rely on the value of ALIGNOF(T) being
a multiple of the true alignment of T, although in practice it does compute
the correct value in all the cases we know about.
Header: #include
<boost/type_traits/alignment_of.hpp>
or #include <boost/type_traits.hpp>
Examples:
alignment_of<int>inherits fromintegral_constant<std::size_t, ALIGNOF(int)>.
alignment_of<char>::typeis the typeintegral_constant<std::size_t, ALIGNOF(char)>.
alignment_of<double>::valueis an integral constant expression with valueALIGNOF(double).
alignment_of<T>::value_typeis the typestd::size_t.