id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
7526	zip_iterator does not support std::tuple and std::pair	claas.koehler@…	jeffrey.hellrung	"The boost zip_iterator is not compatible with std::tuple and std::pair

The proposed patch solves this problem.

Note that I copied some more general tuple algorithms I created for another project. These are all included in the newly introduced namespace helper. Maybe they can be rewritten using boost::mpl, but since I am not familiar with it I used the existing code.

Furthermore I encountered the problem, that a specialisation of the template functions in namespace  tuple_impl_specific does not work, if this is done outside zip_iterator.hpp. The reason appears to be, that the user overloads are not known to the compiler, when the functions are called. This may be a problem, if users want to specialise for their own tuple class. To overcome this difficulty, I replaced the template functions by template classes, which seem to work even if specialisations are made outside zip_iterator.hpp"	Feature Requests	new	To Be Determined	iterator	Boost 1.50.0	Problem		zip_iterator, std::tuple, std::pair	flast@…