Create an Optional_Base object.

Synopsis

Declared in <bslstl_optional.h>

template<class t_ANY_TYPE>
Optional_Base(
    BloombergLP::bslstl::Optional_MoveConstructFromOtherOptional tag,
    BloombergLP::bslmf::MovableRef_Deduced<Optional_Base<t_ANY_TYPE>> original);

Description

Create a disengaged Optional_Base object if the specified original object is disengaged, and an Optional_Base object with the value of original.value() otherwise. This is a special case constructor where t_ANY_TYPE is a non‐const version of t_TYPE and we use the allocator from original to supply memory. original is left in a valid but unspecified state.

Parameters

Name

Description

tag

tag selecting this constructor overload

original

source optional used to initialize this object

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