Is there a nice way to split an int into two shorts (.NET)?

Question

I think that this is not possible because Int32 has 1 bit sign and have 31 bit of numeric information and Int16 has 1 bit sign and 15 bit of numeric information

Answer 1

yes it can be done using masking and bitshifts

 Int16 a,b;
 Int32 c;

 a = (Int16) (c&0xffff);
 b = (Int16) ((c>>16)&0xffff);

EDIT

to answer the comment. Reconstructionworks fine:

 Int16 a, b;
 Int32 c = -1;

 a = (Int16)(c & 0xffff);
 b = (Int16)((c >> 16) & 0xffff);

 Int32 reconst = (((Int32)a)&0xffff) | ((Int32)b << 16);

 Console.WriteLine("reconst = " + reconst);

Tested it and it prints -1 as expected.

EDIT2: changed the reconstruction. The promotion of the Int16 to Int32 caused all sign bits to extend. Forgot that, it had to be AND'ed.