a std.experimental.allocator.RCIAllocator or std.experimental.allocator.RCISharedAllocator allocator object
Complexity: O(1)
auto dl = DList!int(theAllocator); auto cdl = const DList!int(processAllocator); auto idl = immutable DList!int(processAllocator);
Constructs a qualified doubly linked list that will use the provided allocator object. For immutable objects, a RCISharedAllocator must be supplied.