[boost] Changesign function and nonfinite facets added to Boost.Math

Subject: [boost] Changesign function and nonfinite facets added to Boost.Math
From: Paul A. Bristow (pbristow_at_[hidden])
Date: 2011-04-16 05:36:34

I've just added changesign function and nonfinite facets to Boost.Math in
boost-trunk.

These functions were part of the original floating-point collection written
by Johan Rade but were previously only available from Spirit in
boost-sandbox.

Making them First Class citizens in Boost.Math will allow portable
input/output of infinity and NaN, including use of lexical cast, archiving
and serialization.

Multiplatform testing of these new features should start soon.

I hope this will not have any unwanted side effects - I'm sure you'll shout
if it does.

Paul

---
Paul A. Bristow,
Prizet Farmhouse, Kendal LA8 8AB  UK
[phone]  07714330204
pbristow_at_[hidden]