Thanks!

[Paolo Carlini]

Ulrich Drepper wrote:

> It is save to assume that if the reported thousands separator
> character is NUL there is no grouping.  The C interface would return
> an empty string but if the C++ interface requires a character this is
> all you can do.

... therefore, I think Ulrich is suggesting that, whenever libc returns NUL, we
should simply fill grouping() with the empty string literal (""), right?

In this way, everything should be ok.

Cheers,
Paolo.