Author: Dann Corbit
Date: 19:55:01 12/10/04
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On December 10, 2004 at 22:18:12, Uri Blass wrote: >On December 10, 2004 at 22:06:09, Andrew Platt wrote: > >>On December 10, 2004 at 21:21:10, Uri Blass wrote: >> >>>On December 10, 2004 at 20:41:06, Dann Corbit wrote: >>> >>>>Did you read this: >>>> >>>>How to integrate my probing code into your chess program >>>>======================================================== >>> >>>I did not but I still do not understand some things when I look at it >>>for example the function >>>SqFindKing (square *) >>> >>>What king does it find white or black and why does it need to get pointer to >>>square? >>>I can find the white king or black king with no pointers. >> >>Caveat: I haven't implemented it either but I think I can understand the >>specification clearly enough. Note there are two arrays, one for each color. The >>parameter 'square *' is simply one of those arrays. So it will look for the king >>in the array you pass. >> >>Andy. > >In this case I do not understand why it gets a pointer. > >getting a pointer is done when you think to change the value. >I see no reason to change the side to move so it could simply get side to move >as a paramater. In C and C++, an array reference always decays to a pointer in a function call. Have you seen this document: ftp://rtfm.mit.edu/pub/usenet-by-group/comp.lang.c/C-FAQ-list If you want to protect the value you can make it a pointer to const. You can also pass the whole array by value by wrapping it in a struct (which is not usually a good idea unless the array is small).
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