array indexes

Hello, I would like to know what is the reason why GPC complains about type mismatch compiling lines like below: ....... var a:array[0..10] of integer; function at(const index:integer):integer; begin at:=a[index]; end; ....... It seems to me, that there is a too rigid type checking in this matter. Why are constants not allowed here ? Regards, Adam Naumowicz -------------------------------------- WWW: http://math.uwb.edu.pl/~adamn/ --------------------------------------