Create a DatumMapOwningKeysBuilder object that will administer the process of building a Datum map (owning keys) using the specified allocator (e.g., the address of a bslma::Allocator object) to supply memory. Note that no memory is allocated until append or pushBack methods are called on this object.
Declared in <bdld_datummapowningkeysbuilder.h>
explicit
DatumMapOwningKeysBuilder(allocator_type const& allocator);