Re: [Boost-users] [units] Creating specific unit quantities

void setY(quantity > const& y) { m_Y = quantitysi::dimensionless(y); }

I would like to be able to accept any systems dimensionless quantity. Since dimensionless isn't a physical system I obviously didn't find a tag I could use like length_dimension. What should I do here?

I'm getting the feeling that you're not trying very hard here... Look in the directory and you will find three headers : dimensionless_type.hpp, dimensionless_unit.hpp, and dimensionless_quantity.hpp, giving you a variety of options : template void setA(quantity,Y>&) { } template void setB(quantity&) { } template void setC(typename dimensionless_quantity::type&) { } Matthias