Pascal error with array

Question

program s;
  type info = record
       name, surname: string;
       min, sec: integer;
  end;
  arrays = array[2..50] of info;

  var A: arrays;
begin
  A[1].name := 'name';
end.

What is wrong with that? It gives me range check error and I have no idea what is that.

And by the way, can somebody tell me, how Nick D made so nice edit? — good_evening
– good_evening, Commented May 16, 2010 at 16:14
You can see the edit by clicking on the link "edited X mins ago"; the edit replaced the individual apostrophes you had around each line with simple four-space indentation. stackoverflow.com/posts/2844424/revisions — Carl Manaster
– Carl Manaster, Commented May 16, 2010 at 16:17

Tom · Accepted Answer · 2010-05-16 16:08:13Z

6

It gives you an error because you are creating an array from indexes 2 to 50.

So the first element you can access would be 2.

begin
  A[2].name := 'name';
end.

A range check error means that you are trying to access an array in an invalid position (hence, out of range). Pascal, unlike other languages, throws a compilation error if you do this.

answered May 16, 2010 at 16:08

Tom

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