[boost] Re: program-options, --switch and --no-switch

Vladimir Prus wrote:

Hi Neal,

...

Any suggestion on how to implement the common gnu idiom:

--switch and --no-switch?

bool_switch seems perfect for implementing --switch, but what about --no-switch (which should set switch_value to false)?

What do you think about the approach in examples/custom_syntax.cpp?

- Volodya

I think it's not documented. I don't see any mention of extra_parser in: file:/usr/local/src/boost_1_32_0/doc/html/program_options/reference.html Am I missing something?