[Boost-users] [Boost.Units] quantity<unit> problem with template specialisation algorithm?

Hello, many thankyous to the developers of Boost.Units and Boost libraries generally, I have been using them for a few years now and this is my first difficulty. I have been having some problems when using template specialisation (g++ 4.4.3) with Boost.Units (Boost 1_42_0). When calling a specialised template function I have found that I need to be very careful with the argument, In short, specialised_templated_function(1.0 * boost::units::si::metre) works fine specialised_templated_function(1 * boost::units::si::metre) specialised function is not found (default tried) This caught me out for a while and so I thought I would report it in case it is a small bug. If this is not a Boost issue then my appologies. In detail, here is the code to reproduce: #include <iostream> #include namespace bu = boost::units; /** Convert arbitrary units into seconds * When a distance is provided, the speed parameter is used to calculate the time. * Otherwise the speed variable is ignored. */ template<class unit> bu::quantitybu::si::time any2second(const unit& t, const bu::quantitybu::si::velocity& speed =1*bu::si::meters_per_second) { return bu::quantitybu::si::time(t); } /* Specialisations for quantity<length> */ template<> bu::quantitybu::si::time any2second(const bu::quantitybu::si::length& d, const bu::quantitybu::si::velocity& speed) { return bu::quantitybu::si::time(d / speed); } int main() { //The following use the default function and work fine std::cout<<"any2second(1.0*s) = "<

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