On 2018-07-23 08:06:46 +0000, Schwarz, Konrad wrote: > I don't think such code (to detect whether an arbitrary type is > signed or unsigned) exists.
For the signness, one can just do: (T) -1 < 0 Then, to get the minimum value of a signed type, assuming two's complement and no padding bits: (2 * -((T) 1 << (sizeof(T) * CHAR_BIT - 2))) as said in the message I've posted a few days ago. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
