[Boost-users] [range] join() and adaptors::transformed do not play nicely with each other

Subject: [Boost-users] [range] join() and adaptors::transformed do not play nicely with each other
From: Nathan Ridge (zeratul976_at_[hidden])
Date: 2011-02-25 18:10:54

Hello,
 
For the following code:
 
#include <vector>
#include <boost/range/adaptor/transformed.hpp>
#include <boost/range/join.hpp>
 
using boost::adaptors::transformed;
using boost::join;
 
int add1(int i) { return i + 1; }
 
int main()
{
    std::vector<int> A, B;
    auto joined = join(A | transformed(add1), B);
}
 
 
I get the following compiler errors:
 
In file included from ../shared/test/test.cpp:3:0:
../../lib/boost/boost/range/join.hpp: In instantiation of 'boost::range_detail
    ::joined_type<
        const boost::range_detail::transformed_range<int (*)(int), vector<int>
        >, const vector<int>
    >':
../../lib/boost/boost/range/join.hpp:40:7:   instantiated from 'boost
    ::joined_range<
        const boost::range_detail::transformed_range<int (*)(int), vector<int>
        >, const vector<int>
    >'
../shared/test/test.cpp:13:48:   instantiated from here
../../lib/boost/boost/range/join.hpp:34:7: error: no type named 'type' in
    'boost::range_detail::demote_iterator_traversal_tag<
        boost::detail::iterator_category_with_traversal<
            input_iterator_tag, boost::random_access_traversal_tag
        >, boost::random_access_traversal_tag
    >'
../../lib/boost/boost/range/join.hpp: In instantiation of 'boost::joined_range<
        const boost::range_detail::transformed_range<int (*)(int), vector<int>
        >, const vector<int>
    >':
../shared/test/test.cpp:13:48:   instantiated from here
../../lib/boost/boost/range/join.hpp:47:11: error: no type named 'type' in
    'boost::range_detail::demote_iterator_traversal_tag<
        boost::detail::iterator_category_with_traversal<
            input_iterator_tag, boost::random_access_traversal_tag
        >, boost::random_access_traversal_tag
    >'

What is going on?
 
Thanks,
Nate.