On Thu, Sep 8, 2011 at 2:03 PM, Steven Watanabe <watanabesj@gmail.com>wrote:
AMDG
On 09/08/2011 12:43 PM, Michael Powell wrote:
I want to define a dimension stroke_rate, or flow_rate, for that matter. Not too out of the ordinary for our application. So I am starting with something like this for my dimensions.
#include <boost/units/derived_dimension.hpp> #include <boost/units/physical_dimensions/length.hpp> #include <boost/units/physical_dimensions/time.hpp>
typedef
boost::units::derived_dimension<boost::units::dimensionless_type,1,boost::units::time_base_dimension,-1>::type
stroke_rate_dimension;
<snip>
Any thoughts?
Does it work better if you use
boost::units::derived_dimension<boost::units::time_base_dimension,-1>::type
Actually, that's the approach I ended up taking, then leave the dimensionless aspect for a calculation to resolve. That one does anyway. Next up, I need to capture a flow_rate, which I think is something like, typedef derived_dimension<length_dimension,3,time_base_dimension,-1>::type flow_rate_dimension; Or possibly, would be better, typedef derived_dimension<volume_dimension,1,time_base_dimension,-1>::type flow_rate_dimension; But this is causing the same type of build errors. ?
i.e. Leave out the unnecessary dimensionless_type.
In Christ, Steven Watanabe
Thanks, brother. :) _______________________________________________
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