Meta‐function that detects whether TYPE exposes customized‐type behavior.

Synopsis

Declared in <bdlat_customizedtypefunctions.h>

template<class TYPE>
struct IsCustomizedType
    : bsl::integral_constant<bool, bslalg::HasTrait<TYPE, bdlat_TypeTraitBasicCustomizedType>::value>

Description

This struct should be specialized for third‐party types that need to expose "customized type" behavior. See the component‐level documentation for further information.

Base Classes

Name

Description

bsl::integral_constant<bool, bslalg::HasTrait<TYPE, bdlat_TypeTraitBasicCustomizedType>::value>

Metafunction representing a compile‐time constant of the specified (template parameter) t_TYPE with the specified (template parameter) t_VALUE.

Type Aliases

Name

Description

type

Alias for this integral_constant specialization.

value_type

Alias for the (template parameter) t_TYPE.

Member Functions

Name

Description

operator()

Return a copy of the template argument t_VALUE.

operator t_TYPE

Return a copy of the template argument t_VALUE.

Static Data Members

Name

Description

value

The compile‐time constant value of this metafunction.

Specializations

Name

Description

IsCustomizedType<bdlar::CustomizedTypeConstRef>

Trait indicating that bdlar::CustomizedTypeConstRef is a bdlat customized type.

IsCustomizedType<bdlar::CustomizedTypeRef>

Trait indicating that bdlar::CustomizedTypeRef is a bdlat customized type.

Derived Classes

Name

Description

IsCustomized

Meta‐function indicating whether the specified t_TYPE is a customized type.

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