Re: [Boost-users] Flow rate dimensional analysis

Subject: Re: [Boost-users] Flow rate dimensional analysis
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2011-09-19 15:14:36

AMDG

On 09/19/2011 12:01 PM, Michael Powell wrote:
> On Mon, Sep 19, 2011 at 12:57 PM, Steven Watanabe <watanabesj_at_[hidden]>wrote:
> 
>> On 09/19/2011 11:29 AM, Michael Powell wrote:
>>>
>>> However, when I do this, I do get a compiler error:
>>>
>>>   quantity<cs::units::si::flow_rate, float> __fr = __C_flow * __a_orifice
>> *
>>> boost::units::sqrt(__two * __p_diff / __d);
>>>
>>
> 
> If it can be fixed from a library perspective, great. It's easy enough to
> workaround, however, taking static_cast<float>(x.value()) of the
> intermediate result, and so that we don't get too far removed from the
> dimensional analysis.
> 

Actually, you can directly convert the quantities.
The conversion is just explicit.  You're getting
an error because the code tries to do an implicit
conversion.

In Christ,
Steven Watanabe