Thorsten Ottosen wrote:
Neal Becker wrote:
#include <boost/range.hpp> #include <vector>
template<typename in_t, typename out_t> void copy (in_t const& in, out_t &out) {}
What makes you think you can bind a temporary to an non-const reference (out)?
Yeah, same old problem. I think the c+ standard should be changed. It's quite clear (to me) that this is an important use of the range concept. In the meantime, here's a workaround: template<class T> inline T& lvalue_cast (const T& rvalue) { return const_cast<T&> (rvalue); } template<typename in_t, typename out_t> void copy (in_t const& in, out_t &out) {} int main() { std::vector<int> out (2); copy (boost::sub_range<std::vector<int> > (out.begin(), out.begin()+2), lvalue_cast (boost::sub_range<std::vector<int> > (out.begin(), out.begin()+2))); }