Author: Dieter Buerssner
Date: 12:53:45 01/08/03
Go up one level in this thread
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 Regards, Dieter
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