Re: [gnugo-devel] need help

[bump]

> ;xterri(a) && !attack(B) && !attack(C) && !oplay_attack(*,?,a,a)
> ;&& !oplay_defend_both(*,?,a,B,C)
> 
> in this auto-helper constraint expression , i can't find any explanation
> about the meaning of the "!" sign which often begins some functions
> 
> -what difference between !attack(B)  and attack(B) ?

The ! means `not'. The pattern compiler translates this into C,
and ! is standard C language, just like && and ||. 

Look in patterns.c at some of the functions called autohelperpat*.

Dan