[Boost-users] [mpl] newbie question

Lucio Flores writes:

Just trying to use mpl::transform on a vector of int's and I can't seem to get it working properly. Can anyone see what's wrong?? I'm trying to perform

vector_c + vector_c = vector_c

The is_same function always returns false when I compile and run it.

The result of the transform is only required to be "concept-identical" to the result you're looking for. http://www.boost.org/libs/mpl/doc/refmanual/terminology.html So you almost never want to use is_same to compare sequences. usually the equal algorithm is a more appropriate choice: http://www.boost.org/libs/mpl/doc/refmanual/equal.html P.S. <plug> I recommend http://www.boost-consulting.com/mplbook for MPL newbies </plug> HTH, -- Dave Abrahams Boost Consulting www.boost-consulting.com