From: John Maddock (john_at_[hidden])
Date: 2007-03-28 13:54:22
Steven Watanabe wrote:
>> The scope should not include any facilities for input and output. It
>> should also not prevent such support however. (Input and output of
>> units and measures can be handled by extending C++ locales with new
>> facets. C++ locales already deal with I/O of time and money. More
>> about internalization and localization below.)
>>
> Input is definitely beyond the scope of the library. We have
> implemented primitive output.... On further thought, we should
> probably just have
> an output operator for quantity that prints the value_type then the
> unit and leave unit output alone.
That sounds sensible: I can imagine wanting to just log values and having a
default << operator is a big help. Users can provide more specialised <<
operators for specific units if that what they want.
Just my rather uninformed 2c....
Regards, John.