Author: Uri Blass
Date: 02:34:02 04/16/03
better to give only part of the chars that are used in the function? The problem is that my makemove get a struct of 4 chars with details about the move(maybe it is better to use one integer and to get rid of the 4 chars but I decided that it is a big change that I do not like to do now). I call from makemove to functions that get part of the chars for example updateblackpiece(m.from,m.to); The question is if it is better to call only m and not the 2 varaibles m.to and m.from there is already a union that include these numbers so I assume that they they are in memory. I also plan to write a function that update some varaibles and I need only m.from,m.to,m.bits and I do not need m.promote and the question is if using m is better than using 3 of the 4 varaibles. Another solution is to have a global structure of 4 chars for the move that the program consider and to update it every time that I make a move in the beginning of makemove so I do not need to give parameters to the functions that movei call. Note that my undomove does not get a move as a varaible and I start it by move_bytes m=hist_dat[hply-1].m.b; I update hist_dat[hply].m.b in my make move but it is clear that it is not a good idea to use this global array to get the numbers and maybe it is better to have m as global varaible so I can use it in every function. What is the best solution? I do not see difference in readibility if I give m to a function or give 2 chars to the same function and I want to know a clear rule what is faster not by try and error. Uri
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