Boost logo

Boost :

From: Rozental, Gennadiy (gennadiy.rozental_at_[hidden])
Date: 2003-03-25 16:12:09

> Therefore to justify
> boost::optional as a key in an associative container, as
> opposed to its
> direct type, I believe one has to justify a situation where
> the "non-actual"
> value is really being used as a key.

Let say I have mapping of state to action. Now I want to support the case
where current state is undefined. So I am using optional<state> as a key.
Does this example fit for the situation?


Boost list run by bdawes at, gregod at, cpdaniel at, john at