This component-private class is a visitor that is used to implement bsl::variant::swap.
Declared in <bslstl_variant.h>
template<class t_VARIANT>
class Variant_SwapVisitor;| 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). |