BloombergLP::bslmf::NestedTraitDeclaration

Class t_TYPE will be convertible to NestedTraitDeclaration<t_TYPE,t_TRAIT,true> if t_TRAIT is associated with t_TYPE using the BSLMF_NESTED_TRAIT_DECLARATION macro. Nested trait detection depends on t_COND being true. If t_COND is false, the nested trait detection will not see the conversion it is looking for and will not associate t_TRAIT with t_TYPE. This feature is used by BSLMF_NESTED_TRAIT_DECLARATION_IF to turn a trait on or off depending on a compile-time condition (usually another trait).

Synopsis

Declared in <bslmf_nestedtraitdeclaration.h>

template<
    class t_TYPE,
    template<class t_T> typename t_TRAIT,
    bool t_COND = true>
class NestedTraitDeclaration;

Type Aliases

Name	Description
`Type`	This `typedef` is an alias to `NestedTraitDeclaration`.

Derived Classes

Name	Description
`NestedTraitDeclaration`	This class template ties the `bslalg::TypeTraitHasTrivialDefaultConstructor` trait tag to the `bsl::is_trivially_default_constructible` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bdlb::TypeTraitHasPrintMethod` trait tag to the `bdlb::HasPrintMethod` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bslalg::TypeTraitBitwiseEqualityComparable` trait tag to the `bslmf::IsBitwiseEqualityComparable` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bdlat_TypeTraitBasicEnumeration` trait tag to the `bdlat_IsBasicEnumeration` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bslalg::TypeTraitBitwiseMoveable` trait tag to the `bslmf::IsBitwiseMoveable` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bslalg::TypeTraitUsesBslmaAllocator` trait tag to the `bslma::UsesBslmaAllocator` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bslalg::TypeTraitPair` trait tag to the `bslmf::IsPair` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bslalg::TypeTraitBitwiseCopyable` trait tag to the `bsl::is_trivially_copyable` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bdlat_TypeTraitHasFallbackEnumerator` trait tag to the `bdlat_HasFallbackEnumerator` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bslalg::TypeTraitHasPointerSemantics` trait tag to the `bslmf::HasPointerSemantics` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bdlat_TypeTraitBasicSequence` trait tag to the `bdlat_IsBasicSequence` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bdlat_TypeTraitBasicCustomizedType` trait tag to the `bdlat_IsBasicCustomizedType` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bdlat_TypeTraitBasicChoice` trait tag to the `bdlat_IsBasicChoice` trait metafunction.
`NestedTraitDeclaration`	This class template ties the `bslalg::TypeTraitHasStlIterators` trait tag to the `bslmf::HasStlIterators` trait metafunction.