Create an Optional_Base by copying from a std::optional.

Synopsis

Declared in <bslstl_optional.h>

template<class t_ANY_TYPE>
Optional_Base(
    std::allocator_arg_t allocatorArg,
    AllocType allocator,
    BloombergLP::bslstl::Optional_CopyConstructFromStdOptional tag,
    std::optional<t_ANY_TYPE> const& original);

Parameters

Name

Description

allocatorArg

tag selecting the allocator‐extended constructor

allocator

allocator used to supply memory

tag

tag selecting this constructor overload

original

source optional used to initialize this object

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