...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 is_trivially_copyable
: true_type-or-false_type
{ };
Inherits: If T is a (possibly cv-qualified) type that is trivially copyable then inherits from true_type, otherwise inherits from false_type.
Compiler Compatibility: This trait is implemented
as the conjunction of has_trivial_copy
,
has_trivial_assign
, and
has_trivial_destructor
.
Header: #include
<boost/type_traits/is_trivially_copyable.hpp>
Examples:
is_trivially_copyable<int>
inherits fromtrue_type
.
is_trivially_copyable<const int>
inherits fromfalse_type
.
is_trivially_copyable<char*>::type
is the typetrue_type
.
is_trivially_copyable<int(*)(long)>::value
is an integral constant expression that evaluates to true.
is_trivially_copyable<MyClass>::value
is an integral constant expression that evaluates to false.
is_trivially_copyable<T>::value_type
is the typebool
.