This component‐private class is a visitor that is used to implement bsl::variant::swap.

Synopsis

Declared in <bslstl_variant.h>

template<class t_VARIANT>
class Variant_SwapVisitor;

Member Functions

Name

Description

Variant_SwapVisitor [constructor]

Create a Variant_SwapVisitor object that, when invoked, will swap the visited alternative with the active alternative of the specified variant.

operator()

Swap the alternative having index (template parameter) t_INDEX in *d_variant_p with the specified value (i.e. the alternative that is being visited). The behavior is undefined unless t_INDEX is the index of the active alternative of *d_variant_p (or, in C++03, the index of an alternative that has the same type as the active alternative).

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