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From: Deane Yang (deane_yang_at_[hidden])
Date: 2006-08-28 16:50:39

I've taken a quick look at the documentation of Ben's units library and
tried to compile it using VC++ 8.0.

Andy Little wrote:
> I liked the example in basic.cpp. It compiled and ran OK in gcc4.0 but
> unfortunately not in VC7.1.

I was unable to get it to compile in VC8.0. It gives errors in the
compile-time rational number code (in compile_time_number.hpp).

> Overall the library needs needs to be fleshed out
> much more though IMO.

Not for me. It looks very close to what I want. The only thing I would
like to see is a preferred implementation for explicit conversion
between different units of the same dimension. I could probably add this
layer to the library myself but was wondering if you've done this already.

> However I disagree that users like to spend time making their own units.

I disagree with Andy's disagreement. Only physicists working with all of
the physical dimensions would find it more convenient to have a library
with lots of dimensions and units prebuilt. For most applications (it
seems to be very hard to convince the physicists that a units library
has applications outside of physics), a more lightweight library is all
that's needed.

> Also I/O is
> useful.

Built-in I/O is more important when the library comes with a lot of
built-in dimensions and units. It's much less important when the library
does not.


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