zero -> 0x1 -> zero
one -> 0x2 -> one
two -> 0x4 -> two
three -> 0x8 -> three
unknown: warning: unknown name value "four" in "four"
four -> 0x0 -> 
unknown: warning: unknown name value "four" in "zero one two three four"
zero one two three four -> 0xf -> zero one two three
unknown: warning: name_mask: unknown mask bit in mask: 0xf0
0xff -> 0xff -> (null)
unknown: warning: name_mask: unknown mask bit in mask: 0xfffffff0
0xffffffff -> 0xffffffff -> (null)
unknown: warning: unknown name value "0xffffffffffffffff" in "0xffffffffffffffff"
0xffffffffffffffff -> 0x0 -> 
