Re: [Boost-users] Compile errors using make_zip_iterator

"Dalton, Barnaby" writes:

I'm using MSVC 7.1 and am getting masses of compile errors with the following code (see end of message for the errors):

#include #include <vector> #include <functional> #include

int main( void ) {

std::vector<double> vect1(3); std::vector<double> vect2(3);

// boost::zip_iterator< // boost::tuples::tuple< // std::vector<double>::const_iterator, // std::vector<double>::const_iterator // > // > // zip_it_begin( // boost::make_tuple( // vect1.begin(), // vect2.begin() // ) // );

std::vector > vect_of_tuples(3);

std::copy( boost::make_zip_iterator( boost::make_tuple( vect1.begin(), vect2.begin() ) ), boost::make_zip_iterator( boost::make_tuple( vect1.end(), vect2.end() ) ), vect_of_tuples.begin() );

return 0; }

If I uncomment the earlier instantiation of zip_it_begin then it compiles without any errors! I'm guessing this is some kind of compiler bug but and am wondering what the correct/most elegant workaround is?

Well, I don't know, but if you haven't already done so you might try the latest Boost CVS instead of 1.32. If the problem disappears that would be the easiest solution.

Do I have make sure I manually declare a zip_iterator somewhere before using make_zip_iterator?

Can't tell ya. I do note that the one you declared is using constant iterators while the one you're building with make_zip_iterator is using mutable iterators. Sorry I'm not more clue-ful here. This looks like a good question for Microsoft support ;-) -- Dave Abrahams Boost Consulting www.boost-consulting.com