From: Matt Hurd (matt.hurd_at_[hidden])
Date: 2005-10-17 18:54:42
http://www.boost.org/doc/html/program_options/overview.html#id1247613
has the line
pd.add("output-file", 2).add_optional("input-file", -1);
which is not supported. Only void add(...) exists.
pd.add("output-file", 2)
pd.add("input-file", -1);
would be correct I think.
matt.