Re: [Boost-users] program_options: Printing options and their values

From: Andrew Schweitzer (a.schweitzer.grps_at_[hidden])
Date: 2008-03-12 20:19:37

Jeremy Conlin wrote:
>  This is what I have right now
> 
>     cout << "options:\n";
>     po::variables_map::iterator optIter = options.begin();
>     for( ; optIter != options.end(); ++optIter ){
>         cout << "\t" << optIter->first << " = " << optIter->second.as 
> <http://second.as><string>() << std::endl;
>     }
> 
I have yet to find a really simple + satisfactory way to do this.

I tried writing a wrapper that stored a string conversion function with 
the option when it was declared... but that was bit of a hack and I lost 
all the generality.

I concluded it's best to try and print them one by one, not in a loop, 
but by name, and do the printing near where the options are added so you 
can easily see their names and types.

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