Apply visitor to the held TYPE value of this modifiable variant.
Synopsis
Declared in <bdlb_variant.h>
template<
class RET_TYPE,
class VISITOR>
RET_TYPE
apply(VISITOR& visitor);Description
If this variant is unset, a default constructed bslmf::Nil is passed to the visitor.
Return Value
result of invoking visitor on the active alternative
Parameters
Name |
Description |
visitor |
callable applied to the active alternative |
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