pub unsafe static bit_map_rank: [c_ushort; 16]Expand description
@brief Bitmask representation for card ranks. Maps absolute rank (0-15) to bitmask (0x0000-0x2000). Rank 2->0x0001, Rank 3->0x0002, …, Rank Ace(14)->0x1000. Indices 0, 1, 15 are sentinel values.