15 Aug
2007
15 Aug
'07
5:55 p.m.
Hi Bryan and Vladimir,
I'm not %100 sure, but you might get the right effect by initializing '_input' yourself (or leaving it uninitialized), and remove the 'default_value' settings. Then you can test the value of '_input' to see if it got set. The only problem is the usage statement won't print what the default value is, but is that something you want in this case?
Thanks for the hint. I left out the default_value call and I got what I wanted. Christian