[Boost-users] [type_traits]: is_boost_optional?

Subject: [Boost-users] [type_traits]: is_boost_optional?
From: Roland Bock (rbock_at_[hidden])
Date: 2010-09-01 08:07:09

Hi,

is there something in Boost.TypeTraits (or somewhere else) that allows 
me to check if a type is a boost::optional?

I'd like to do something like this:

template<typename T>
typename enable_if<is_boost_optional<T> >, T::value_type>::type 
foo(const T&);

Thanks and regards,

Roland