Re: [Boost-bugs] [Boost C++ Libraries] #8333: [math] PGI 11.3 problems (sph_bessel.cpp, sph_bessel.cpp)

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8333: [math] PGI 11.3 problems (sph_bessel.cpp, sph_bessel.cpp)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-04-03 11:55:50

#8333: [math]  PGI 11.3 problems (sph_bessel.cpp, sph_bessel.cpp)
-------------------------------------------------+--------------------------
  Reporter:  Mark Dixon <m.c.dixon@…>            |       Owner:  johnmaddock
      Type:  Bugs                                |      Status:  new        
 Milestone:  To Be Determined                    |   Component:  math       
   Version:  Boost 1.53.0                        |    Severity:  Problem    
Resolution:                                      |    Keywords:  pgi        
-------------------------------------------------+--------------------------

Comment (by Mark Dixon <m.c.dixon@…>):

 For PGI 11.3, it seems to be in:
 {{{
 ${PGI_HOME}/include/CC/stl/_cmath.h
 }}}

 Which is included by the following headers:
 {{{
 ${PGI_HOME}/include/CC/cmath
 ${PGI_HOME}/include/CC/stl/_valarray.h
 ${PGI_HOME}/include/CC/stl/_complex.h
 }}}

 So it "should" be included.

 Sticking the following definition:
 {{{
 long double abs (long double __x) { return __x; }
 }}}
 At the very top of sph_bessel.cpp results in the following compile error:
 {{{
 "/apps/compilers/pgi/11.3/1/default/linux86-64/11.3/include/CC/stl/_cmath.h",
 line 208: error:
           function "std::abs(long double)" conflicts with using-
 declaration of
           function "abs(long double)"
   inline long double abs (long double __x)                  { return
 _STLP_DO_ABS(long double)((double)__x); }
                      ^

 "./boost/math/special_functions/fpclassify.hpp", line 85: error:
           using-declaration of function "abs(long double)" conflicts with
           function "std::abs(long double)" (declared at line 208 of
 "/apps/compilers/pgi/11.3/1/default/linux86-64/11.3/include/CC/stl/_c
           math.h")
     namespace std{ using ::abs; using ::fabs; }
                            ^

 2 errors detected in the compilation of
 "libs/math/src/tr1/sph_bessel.cpp".
 }}}

 So it would appear that it is being included.

 Alternatively, if I alter sph_bessel.cpp to read:
 {{{
 //  Copyright John Maddock 2008.
 //  Use, modification and distribution are subject to the
 //  Boost Software License, Version 1.0.  (See accompanying file
 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 //
 #  include <pch.hpp>
 #ifndef BOOST_MATH_TR1_SOURCE
 #  define BOOST_MATH_TR1_SOURCE
 #endif
 #include <boost/math/tr1.hpp>
 #include <boost/math/special_functions/bessel.hpp>
 #include "c_policy.hpp"

 extern "C" double BOOST_MATH_TR1_DECL boost_sph_bessel
 BOOST_PREVENT_MACRO_SUBSTITUTION(unsigned n, double x)
 BOOST_MATH_C99_THROW_SPEC
 {
    long double val = 3.14;
    std::abs(val);
    return c_policies::sph_bessel BOOST_PREVENT_MACRO_SUBSTITUTION(n, x);
 }
 }}}

 I get the 3 compile errors originally reported, but no new ones.
 sph_bessel.cpp clearly knows about the long double abs definition.

 Presumably the problem is deep in the include files?

 Thanks,

 Mark

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8333#comment:8>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.