Re: [Boost-users] Program Options: Documentation about response files out of date?

From: Vladimir Prus (ghost_at_[hidden])
Date: 2007-07-20 05:54:01

Olaf van der Spek wrote:

> Hi,
> 
> [1] says:
>> The library does not provide direct support for response files, so you'll
>> need to write some extra code.
> 
> But this code does the trick without much extra code:
> std::ifstream is(vm["conf_file"].as<std::string>().c_str());
> po::store(po::parse_config_file(is, desc), vm);
> 
> Or is a response file something else? In that case, maybe that should
> be mentioned, as I think for lots of users this is enough.

Quoting the docs:

        A response file is just a configuration file which uses the 
        same syntax as the command line

So, response file might contain:

        --foo=bar

while regular config file has different syntax. Also, it is 
typical to use response files with the @filename syntax, which 
is also not readily available.

- Volodya