a std.experimental.allocator.RCIAllocator or std.experimental.allocator.RCISharedAllocator allocator object
Complexity: O(1)
import std.experimental.allocator : theAllocator, processAllocator; auto h = Hashtable!(int, int)(theAllocator); auto ch = const Hashtable!(int, int)(processAllocator); auto ih = immutable Hashtable!(int, int)(processAllocator);
Constructs a qualified hashtable that will use the provided allocator object. For immutable objects, a RCISharedAllocator must be supplied.