Create an Optional_Base object whose contained value is initialized by forwarding from the specified value.
Declared in <bslstl_optional.h>
template<class t_ANY_TYPE>
Optional_Base(
std::allocator_arg_t allocatorArg,
allocator_type allocator,
BloombergLP::bslstl::Optional_ConstructFromForwardRef tag,
t_ANY_TYPE&& value);Use the specified allocator to supply memory.
| Name | Description |
|---|---|
| allocatorArg | tag selecting the allocator-extended constructor |
| allocator | allocator used to supply memory |
| tag | tag selecting this constructor overload |
| value | value compared with or used to initialize the optional |