Author: Rafael Andrist
Date: 11:27:08 03/23/02
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On March 23, 2002 at 13:06:37, Christophe Drieu wrote: >Hi, i want use 64 bits variables in my chess engine. How declare such variable >with Visual C++ ? use __int64 for a signed 64 bit integer, or unsigned __int64 for an unsigned 64 bit integer. For a better portability I recommend you to use a typedef, e.g.: typedef unsigned __int64 BB; //Bitboard //somewhere in the code BB whitePawns Later, you only have to change the typedef, if you switch to another compiler. regards Rafael B. Andrist
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