On Sat, 17 Apr 2010 12:05:03 +0200, Alain Ketterlin wrote:
>> I don't know of any language that creates a new scope for loop
>> variables, but perhaps that's just my ignorance...
>
> I think Pascal and Modula-2 do this, Fortran does this, as well as Ada.
Pascal doesn't do this.
[st...@sylar pascal]$ cat for_test.p
program main(input, output);
var
i: integer;
begin
for i := 1 to 3 do
begin
writeln(i);
end;
writeln(i);
end.
[st...@sylar pascal]$ gpc for_test.p
[st...@sylar pascal]$ ./a.out
1
2
3
3
However you can't assign to the loop variable inside the loop. Outside of
the loop, it is treated as just an ordinary variable and you can assign
to it as usual.
--
Steven
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