[boost] [lexical_cast][math] can't unconditionally call math::changesign with long double

Subject: [boost] [lexical_cast][math] can't unconditionally call math::changesign with long double
From: Eric Niebler (eniebler_at_[hidden])
Date: 2013-02-23 19:53:47

lexical_cast is using math::changesign with long double regardless of
whether BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS is defined or not. This
is causing Boost.Test build problems (see here http://tinyurl.com/af5453h).

I'm pretty sure this is a bug in lexical_cast, so I've opened a ticket:
https://svn.boost.org/trac/boost/ticket/8162

I've assigned it to the last person to touch lexical_cast.hpp. Apologies
if that's not right. There is no entry for lexical_cast in
libs/maintainers.txt.

-- 
Eric Niebler
Boost.org
http://www.boost.org