BDE 4.14.0 Production release
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#include <bslmf_istriviallydefaultconstructible.h>
This struct
template implements a meta-function to determine whether the (template parameter) t_TYPE
is trivially default-constructible. This struct
derives from bsl::true_type
if the t_TYPE
is trivially default-constructible, and from bsl::false_type
otherwise. This meta-function has the same syntax as the is_trivially_default_constructible
meta-function defined in the C++11 standard [meta.unary.prop]; however, this meta-function can automatically determine the value for the following types only: reference types, fundamental types, enums, pointers to members, and types declared to have the bsl::is_trivially_default_constructible
trait using the BSLMF_NESTED_TRAIT_DECLARATION
macro (and the value for other types defaults to false
). To support other trivially default-constructible types, this template must be specialized to inherit from bsl::true_type
for them.