Re: array indexes

13 Oct 2001


      On Sat, 13 Oct 2001, Adam Naumowicz wrote:
...
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 ?
It's more of an anoyance than a problem. Just omit "const".
The following program illustrates there's no side effect:
(note: changed "at" to "ax" because "at" is in use.

program foo;

var a:array[0..10] of integer;
    b,c   : integer;

function ax( index:integer):integer;
begin
ax:=a[index];
index := 5;
end;

begin
  b:=1;
  c:=ax(b);
  writeln(b); {writes 1}
end.

You can also use c:=a[1];

  russ

Re: array indexes

Russell Whitaker