Re: [Boost-users] implicit() in program_options::value_semantic

From: Vladimir Prus (ghost_at_[hidden])
Date: 2005-12-08 02:18:06

Alterman, Eugene wrote:

> Program options library overview doc illustrates using implicit() for
> specifying 0 or 1 token value, but this function does not seem to be
> present in reference doc or source files (as of 1.33.1).

Yes, that method was removed on 2005-04-22. The motivation is that it just
leads to parsing ambiguities and no good command line interface I ever seen
uses optional values.

- Volodya