On Thu, Sep 8, 2011 at 2:03 PM, Steven Watanabe 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 #include #include

typedef

boost::units::derived_dimensionboost::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_dimensionboost::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::type flow_rate_dimension; Or possibly, would be better, typedef derived_dimension::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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Ah ok. On Thu, Sep 8, 2011 at 3:01 PM, Steven Watanabe wrote:

AMDG

On 09/08/2011 01:39 PM, Michael Powell wrote:

...

Next up, I need to capture a flow_rate, which I think is something like,

typedef

derived_dimension::type

...

flow_rate_dimension;

Or possibly, would be better,

typedef derived_dimension::type flow_rate_dimension;

But this is causing the same type of build errors.

?

You're mixing dimensions and base dimensions incorrectly. Use either:

derived_dimension::type

or

mpl::divides::type

I knew it had to be something stupid like that. Thanks for pointing that out.

In Christ, Steven Watanabe

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