AMDG On 03/06/2013 09:48 AM, Stefan Strasser wrote:
Hi,
I'm looking for a boost functionality to determine whether a given type has a member function of a given name (or name + signature). this seems to be possible using SFINAE, but all I can find is BOOST_MPL_HAS_XXX_TRAIT_DEF which only works for nested types, not functions. I could of course implement it myself using SFINAE but BOOST_MPL_HAS_XXX_TRAIT_DEF has a lot of compiler bug workarounds it seems, so I guess this will cause problems. Is there such a functionality in boost?
I want to use it to determine the defaults of a traits class, similar to C++11 pointer_traits::difference_type. But the determining factor for the default is a function in my case, not a type.
The macro you're looking for is BOOST_TTI_HAS_MEMBER_FUNCTION. However, I don't think this has been released yet. It's in the trunk, but I don't see it in the release branch. In Christ, Steven Watanabe