This component‐private metafunction provides the implementation of bsl::variant_alternative.

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...>>

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