Re: [Boost-users] [mpl] Where is at with default

AMDG Agustín K-ballo Bergé wrote:

I can't seem to find the `at` metafunction with a default value for associative sequences. What should I include to use such metafunction with a mpl::map ? Including is not enough, I get a 'too many templates arguments' when trying to do:

typename boost::mpl::at< State, R, L >::type

which I ended up doing like this:

typename boost::mpl::eval_if< typename boost::mpl::has_key< State, R >::type , boost::mpl::at< State, R > , boost::mpl::identity< L >

...

::type

It doesn't exist. The documentation and the code are not in synch. In Christ, Steven Watanabe