Re: [Boost-users] Problem with program_options store()

From: Vladimir Prus (ghost_at_[hidden])
Date: 2005-11-07 05:21:50

Hi Merrill,

> Given this program fragment (based on the Getting Started example) using
> Boost::program_options compiled with MinGW:
> 
> options_description desc("Program options");
>     ...
> variables_map vm;
> store(parse_command_line(argc, argv, desc), vm);

Please always provide a complete program! The snippet copied from docs is
likely to be correct, the problem might be in outside code that you did not
provide.

> gave the following error (reformatted for readability):
> 
>     error: no matching function for call to
>         `store(boost::program_options::basic_parsed_options<const char>,
>                boost::program_options::variables_map&)'
>            
>     candidates are:
>         store(const boost::program_options::basic_parsed_options<char>&,
>               boost::program_options::variables_map&, bool)
> 
>         store(const
>         boost::program_options::basic_parsed_options<wchar_t>&,
>               boost::program_options::variables_map&)
>               
> I can add a "true" as a third argument to store(), but the mismatch still
> remains in the first argument: <const char> versus <char>&.
> 
> If I assigned the result of parse_command_line() to an intermediate
> variable, I can match the &, but the const char versus char still remains.
> 
> What is the problem way of calling store()?

How is you main declared? The C++ standard say it should be

  int main(int ac, char* av[])

Note: "char", not "const char". This is the most likely problem.

- Volodya