[Boost-users] [mpl] include order matters for set and map

From: Yuval Ronen (ronen_yuval_at_[hidden])
Date: 2006-08-16 09:36:36

The following simple code:

#include <boost/mpl/map.hpp>
#include <boost/mpl/set.hpp>
#include <boost/mpl/pair.hpp>

using namespace boost;

int main(int argc, char* argv[])
{
     typedef mpl::map< mpl::pair<int, double> > my_map;
     return 0;
}

compiles fine. But if swap the order of

#include <boost/mpl/map.hpp>

and

#include <boost/mpl/set.hpp>

then it doesn't compile any more (MSVC 7.1).

Yuval