'Morning, all.

If these lines:

   string currency = format("$%,.02f", 11_234_456.99);
   writeln(currency);

Will result in:

   $11,234,456.99

Why don't these lines:

   string notCurrency = format("%,", 11_234_456);
   writeln(notCurrency);

result in:

   11,234,456

???

Instead of a range violation?

On Sunday, 14 July 2019 at 13:45:38 UTC, Ron Tarrant wrote:
> 'Morning, all.
>
> If these lines:
>
>    string currency = format("$%,.02f", 11_234_456.99);
>    writeln(currency);
>
> Will result in:
>
>    $11,234,456.99
>
> Why don't these lines:
>
>    string notCurrency = format("%,", 11_234_456);
>    writeln(notCurrency);
>
> result in:
>
>    11,234,456
>
> ???
>
> Instead of a range violation?

Never mind. This works:

   string notCurrency = format("%,?d", ',', 11_234_456);
   writeln(notCurrency);