Author: Robert Hyatt
Date: 15:12:04 01/08/03
Go up one level in this thread
On January 08, 2003 at 15:53:45, Dieter Buerssner wrote: >On January 08, 2003 at 14:55:56, Robert Hyatt wrote: > >>On January 08, 2003 at 08:25:06, Uri Blass wrote: >> >>>2)chess.h in crafty has the following code >>> >>>#if defined(HAS_64BITS) >>> typedef unsigned long BITBOARD; >>>#else >>># if defined(NT_i386) || defined(NT_AXP) >>> typedef unsigned __int64 BITBOARD; >>># else >>> typedef unsigned long long BITBOARD; >>># endif >>>#endif >>> >>>Do I need all this #if's and in which machines my code is not supposed to work >>>if I avoid them and simply defined bitboard as unsigned__int64 >>>Noe the problem is to understand chess.h that is a basic file. >> >>__int64 is _only_ going to work on microsoft's compiler. > >It also works with Borland. Perhaps more. > >>It will not work >>on gcc or any other compiler I know of. If you have no need to compile with >>other compilers (gcc, etc) then you can do without the spaghetti code above. > >I am also puzzled by the above code snippet. Actually I cannot see, what the >difference would be to slighly simpler looking: > >#if defined(NT_i386) || defined(NT_AXP) > typedef unsigned __int64 BITBOARD; >#else > typedef unsigned long long BITBOARD; >#endif Since I didn't write all of the "spaghetti" I don't know if that will work or not. IE if you assume that NT means __int64 it might be ok, but remember that there are other compiler options for NT, besides MSVC, and that is probably where the extra tests came from, although not remembering who ported what to what means I am not sure... > >Regards, >Dieter
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