Re: [boost] Re: [program_options] simple question

From: Peter Dimov (pdimov_at_[hidden])
Date: 2004-03-26 09:58:01

Vladimir Prus wrote:
> Neal Becker wrote:
> 
>> Which brings us to a IMHO really cool little example, combining
>> lambda with program_options:
> 
>>>     ("angle",
>>> po::value<double>()->notifier(var(angle)=180./M_PI*_1), 
> 
> Yea, that's nice. I'll try to get it into docs.
> 
> But, BTW, did you notice that for just storing into a variable, you
> can use 
> 
>         ("angle", po::value<double>()->notifier(&angle)),
> 
> ? I.e. for simple case there's no need to use lambda.

I'd expect

    ("angle", &angle),

for the simple case.