The 16 bit in c/c++ traditionally refers to short int short integer, occupying 2 bytes. The front can be unsigned and signed, and the types under the new standard are int 16_t and uint16 _ t _ t.

The 32 bits in c/c++ traditionally refer to long int, occupying 4 bytes. The front can be unsigned and signed, and the types under the new standard are int32_t and uint32 _ t.