From: John Maddock (john_at_[hidden])
Date: 2008-02-24 11:50:30
Just a gentle reminder that the review of Johan Rade's floating point
utilities code is currently under way, and we could use a few more reviews
of these useful utilities ! :-)
> The review of Johan Rade's floating point utilities starts today.
> Code and docs can be downloaded from :
> The library consists of three parts:
> 1) Floating point classification routines: these are optimised
> implementations of the C99 and C++ TR1 functions fpclassify, isinf,
> isnan, isnormal and isfinite. From Boost-1.35 onwards these are
> already a part of Boost.Math (see
> so if accepted the two implementations will get merged.
> The review here should focus on the implementation used, and testing
> on whatever platforms you have available - in particular are there any
> circumstances (compiler optimisation settings etc) where this
> implementation breaks?
> 2) Sign manipulation functions: implementations of the C99 and C++ TR1
> functions copysign and signbit, plus the changesign function. Two of
> these (signbit and copysign) are currently undocumented members of
> Boost.Math, and again the two implementations will get merged if this
> library is accepted.
> Again the main focus of the review here is the implementation, and
> testing thereof especially in the presence of compiler optimisations.
> 3) C++ locale facets: these will read and write non-finite numbers in
> a portable and round-trippable way: that is not otherwise possible
> current C++ std library implementations. These are particularly
> useful for number-serialisation for example.
> Since the design is already specified by the C++ standard for these
> facets, your review here should focus on implementation, testing,
> documentation, and perhaps where in Boost these should best be placed
> if accepted.
> These look to be a useful collection of utilities, so I'll look
> forward to your reviews,
> John Maddock,
> Floating Point Utilities Review Manager.
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