Create a nullable object that has the null value and that uses the mechanism of the specified allocator to supply memory.
Declared in <bdlb_nullableallocatedvalue.h>
NullableAllocatedValue(
bsl::nullopt_t const& nullopt,
bsl::allocator<char> const& allocator);
| Name | Description |
|---|---|
| nullopt | disengaged-optional tag; value is unused |
| allocator | allocator used to supply memory |