#include <boost/mpl/assert.hpp>
int main() { BOOST_MPL_ASSERT(( boost::is_same<unsigned,unsigned> )); // Should be ok! return 0; }
[snip]
You should also include <boost/type_traits/is_same.hpp>
Duh - feeling pretty dim..... #include <boost/mpl/assert.hpp> #include <boost/type_traits/is_same.hpp> int main() { BOOST_MPL_ASSERT(( boost::is_same<unsigned,double> )); // Should die! return 0; } /sw/bin/g++-4 -I/usr/local/include -ansi -pedantic -Wall test.cpp test.cpp: In function 'int main()': test.cpp:6: error: no matching function for call to 'assertion_failed (mpl_::failed************ boost::is_same<unsigned int, double>::************)' Bingo! Cheers, Now to try and build my castle in the sky (lets face it that's what a lot of this feels like at times)..... -ed