[Boost-bugs] [Boost C++ Libraries] #7485: build failure with BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS

Subject: [Boost-bugs] [Boost C++ Libraries] #7485: build failure with BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-10-09 02:29:51

#7485: build failure with BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
-------------------------+--------------------------------------------------
 Reporter:  kab@…        |        Type:  Bugs            
   Status:  new          |   Milestone:  To Be Determined
Component:  None         |     Version:  Boost 1.52.0    
 Severity:  Regression   |    Keywords:                  
-------------------------+--------------------------------------------------
 With boost-1.52 beta1, and possibly earlier, I'm no longer able to build
 with BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS.  I'm getting errors like
 that below when defining that variable in
 $BOOST_ROOT/boost/math/tools/user.hpp.  This works in boost-1.49; I
 haven't tried to narrow down the introduction of this issue more narrowly
 than that.  I don't think it matters, but this is with gcc4.5 and gcc4.6.

 The promote_args class template in boost/math/tools/promotion.hpp has a
 static assertion that errors if the result type is long double and
 BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS is defined.

 In file included from ./boost/math/special_functions/math_fwd.hpp:27:0,
                  from ./boost/math/special_functions/sign.hpp:17,
                  from ./boost/lexical_cast.hpp:165,
                  from ./boost/math/special_functions/gamma.hpp:24,
                  from
 ./boost/math/special_functions/detail/bessel_jy.hpp:14,
                  from ./boost/math/special_functions/bessel.hpp:17,
                  from ./boost/math/special_functions/airy.hpp:10,
                  from ./boost/math/special_functions.hpp:15,
                  from libs/math/src/tr1/pch.hpp:9,
                  from libs/math/build/../src/tr1/nexttoward.cpp:6:

 ./boost/math/tools/promotion.hpp: In instantiation of
 'boost::math::tools::promote_args<long double, float, float, float, float,
 float>':

 ./boost/math/special_functions/fpclassify.hpp:252:50:   instantiated from
 'int boost::math::fpclassify(T) [with T = long double]'

 ./boost/math/special_functions/next.hpp:177:47:   instantiated from 'T
 boost::math::float_prior(const T&, const Policy&) [with T = long double,
 Policy =
 boost::math::policies::policy<boost::math::policies::domain_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::pole_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::overflow_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::evaluation_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::rounding_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy>]'

 ./boost/math/special_functions/next.hpp:245:123:   instantiated from 'T
 boost::math::nextafter(const T&, const T&, const Policy&) [with T = long
 double, Policy =
 boost::math::policies::policy<boost::math::policies::domain_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::pole_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::overflow_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::evaluation_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::rounding_error<(boost::math::policies::error_policy_type)1u>,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy,
 boost::math::policies::default_policy>]'

 libs/math/build/../src/tr1/c_policy.hpp:129:15801:   instantiated from 'T
 c_policies::nextafter(const T&, const T&) [with T = long double]'

 libs/math/build/../src/tr1/nexttoward.cpp:18:59:   instantiated from here

 ./boost/math/tools/promotion.hpp:141:10: error: static assertion failed:
 "(0 == ::boost::is_same<type, long double>::value)"

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7485>
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