From: David Abrahams (dave_at_[hidden])
Date: 2005-06-08 08:31:31
Peder Holt <peder.holt_at_[hidden]> writes:
> Is there any interest in a compile-time meta-version of double?
> typedef META_DOUBLE(3.1415926535897932384626433) pi;
> META_DOUBLE(3.1415926535897932384626433) pi_;
Whoa, that's nice syntax!
I'm still trying to guess how you do it. Does the PP treat 3.14 as
> //Mathematical operations
> typedef math::meta::add<pi,pi>::type pi2;
Really, even with FP rounding errors? I guess multiplying by 2 is
> This implementation uses two ints to represent the decimals, and a
> short to represent the exponent.
I don't understand why you'd choose int for one and short for the
other when they have the same range requirements: both int and short
are required to be at least 16 bits and neither short nor int is
required to be more than 16 bits. Can you explain that?
-- Dave Abrahams Boost Consulting www.boost-consulting.com
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