[boost] boost/math octonion/quaternion failures?

From: Beman Dawes (bdawes_at_[hidden])
Date: 2003-08-12 20:41:35

Current GCC and Intel compilers don't appear to allow using declarations at 
function scope, according to a bug report.

Is there any reason not to just move the using declarations to namespace 
scope?

Answering my own queston, I think prefer the solution used in other boost 
code where calls to say std::abs are explicitly qualified, and ifdef 
BOOST_NO_STDC_NAMESPACE then namespace std { using ::abs; } is supplied.

What are the pros and cons of the different approaches?

--Beman