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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
>> Andy Little <andy <at>> 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.


Manfred Doudar - Research Engineer
National ICT Australia - Canberra Research Lab |
Research School of Information Sciences and Engineering (RSISE)
The Australian National University - Canberra, ACT 0200 AUSTRALIA

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