From: Manfred Doudar (manfred.doudar_at_[hidden])
Date: 2006-08-18 22:30:42
Hi Andy,
Andy Little wrote:
> "Thorsten Ottosen" <nesotto_at_[hidden]> wrote in message
> news:loom.20060818T123417-474_at_post.gmane.org...
>> Andy Little <andy <at> servocomm.freeserve.co.uk> writes:
>>
>>> // Quan
>>> quan::length::ft qft(3);
>>> std::cout << "quan qft.numeric_value() = "<< qft.numeric_value() << '\n';
>>> assert(qft.numeric_value() ==3);
>> Just a question: why is the member called numeric_value? are there other
>> values?
>
> The function is called numeric_value as it returns the numeric value of the
> quantity.
>
> quan::length::mi my_journey(25); // distance in miles
> quan::length_<int>::nm dx (25); // distance in nanometers
>
> The numeric value of journey is 25, the numeric value of dx is 25, but the
> units are very different.
>
What you are getting with the call to 'numeric_value' is the scalar
component of the "quantity" - right?
Just a suggestion then, would a more reasonable name for the method be
'magnitude'; it sounds better, and ties better to the problem domain.
Cheers,
-- Manfred Doudar - Research Engineer National ICT Australia - Canberra Research Lab | www.nicta.com.au Research School of Information Sciences and Engineering (RSISE) The Australian National University - Canberra, ACT 0200 AUSTRALIA