On Wed, Apr 07, 2004 at 08:59:42PM -0400, Arkadiy Vertleyb wrote:
I am wonderring if there is an easy way to determine the type of a lambda functor, kind of lambda-specific typeof facility. I do realize that the primary purpose of lambda is to create temporary functors to pass to STL algorithms.
On the other hand, there are contexts where functors need to be stored, such as in std::set, etc.
I assume you mean for the comparator, not storing a set of functors.
Has anything been done by anybody in this regard?
I've often used Boost.Function for this, though I'm interested in approaches that don't involve the function-pointer-like overhead: typedef Some_Type SetElementType; typedef boost::function< bool (const SetElementType& , const SetElementType&) > SetElementComparator; typedef std::set< SetElementType, SetElementComparator > SetType; Best, -- Shannon Stewman | Let us walk through the waning night, Caught in a whirlpool, | As dawn-rays tickle our toes, the dew soothes A quartering act: | Our blistered soles, and damp bones stir Solitude or society? | As crimson cracks under the blue-grey sky.