bsl::Variant_VariantAlternativeImpl

Synopsis

Declared in <bslstl_variant.h>

template<
    std::size_t t_INDEX,
    class t_HEAD = BSLSTL_VARIANT_NOT_A_TYPE,
    class... t_TAIL>
struct Variant_VariantAlternativeImpl
    : Variant_VariantAlternativeImpl<t_INDEX - 1, t_TAIL...>

Base Classes

Name	Description
`Variant_VariantAlternativeImpl<t_INDEX - 1, t_TAIL...>`	This component-private metafunction provides the implementation of `bsl::variant_alternative`.

Specializations

Name
`Variant_VariantAlternativeImpl<0, BSLSTL_VARIANT_NOT_A_TYPE>`
`Variant_VariantAlternativeImpl<t_INDEX, BSLSTL_VARIANT_NOT_A_TYPE>`
`Variant_VariantAlternativeImpl<0, t_HEAD, t_TAIL...>`

Derived Classes

Name	Description
`Variant_VariantAlternativeImpl`	This component-private metafunction provides the implementation of `bsl::variant_alternative`.
`variant_alternative<t_INDEX, variant<t_HEAD, t_TAIL...>>`