P99_2COMPLEMENT P99_ABS p99_add p99_addc p99_addh p99_addhh p99_addl p99_addll P99_AVAL P99_E_2COMPLEMENT P99_E_REPRESENTATION P99_EMAX P99_EMIN P99_HIGH2_1 P99_INIT P99_LVAL P99_RVAL p99_signed_representation p99_signed_representation_invalid p99_signed_representation_magnitude p99_signed_representation_ones p99_signed_representation_twos P99_TPADDING P99_TPREC P99_TWIDTH p99_twos p99_twosc p99_twosh p99_twoshh p99_twosl p99_twosll p99x_int128 p99x_intmax p99x_uint128 p99x_uintmax uintmax_t

signed char p99_twoshh ( unsigned char  p00_a ) [inline] Cast an unsigned type into a signed one as would do a two's complement representation of the signed type. If the signed type is in usual two's complement this should be the identity. For other cases this is supposed to do the best possible. Warning: For bizarrely encoded cases this might result in a negative zero or so.