[boost] [mpl] patches for outdated workarounds for aCC6

21 Oct 2006

      Three mpl headers -- integral_c.hpp, integral_c_fwd.hpp and
  integral_wrapper.hpp -- contain outdated workarounds for HP-UX
  aCC. When compiled with aCC6, these workarounds are causing
  compilation errors because the resulting code looks like the
  following:

template< typename T, long N >
struct integral_c
{
//#if BOOST_WORKAROUND(__HP_aCC, BOOST_TESTED_AT(53800))
    static const T value = N;
//#else
//  the correct code
//  static const T value = (T) N;
//#endif
};
enum udt_builtin_mixture_enum {};
integral_c<udt_builtin_mixture_enum, 0> x;

  A typical compilation error is:

"../../../boost/mpl/aux_/integral_wrapper.hpp", line 45: error #2144: a 
value
          of type "long" cannot be used to initialize an entity of type
          "const boost::numeric::sign_mixture_enum"
      BOOST_STATIC_CONSTANT(AUX_WRAPPER_VALUE_TYPE, value = N);

  Attached patches change invocation of BOOST_WORKAROUND macro in
  the aforementioned mpl headers from:

#if BOOST_WORKAROUND(__HP_aCC, BOOST_TESTED_AT(53800))

  to:

#if BOOST_WORKAROUND(__HP_aCC, <= 53800)

  With patches below, the following tests that previously failed
  to compile with "error #2144", compile and pass:

        Library                 Test
        ------------------      ---------------------
        conversion              numeric_cast_test
        numeric/conversion      traits_test
        numeric/conversion      converter_test
        numeric/conversion      udt_support_test
        numeric/conversion      numeric_cast_test
        numeric/conversion      udt_example_0
        python                  builtin_converters
        python                  vector_indexing_suite
        python                  pointer_vector
        xpressive               regress
        xpressive               c_traits
        xpressive               misc1
        xpressive               test_dynamic
        xpressive               multiple_defs

  Can the three patches below be applied to both the HEAD and the
  RC branch?

  Thanks,
    Boris

Index: integral_c.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/mpl/integral_c.hpp,v
retrieving revision 1.22
diff -r1.22 integral_c.hpp
22c22
< #if BOOST_WORKAROUND(__HP_aCC, BOOST_TESTED_AT(53800))
---
...
#if BOOST_WORKAROUND(__HP_aCC, <= 53800)
Index: integral_c_fwd.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/mpl/integral_c_fwd.hpp,v
retrieving revision 1.4
diff -r1.4 integral_c_fwd.hpp
22c22
< #if BOOST_WORKAROUND(__HP_aCC, BOOST_TESTED_AT(53800))
---
...
#if BOOST_WORKAROUND(__HP_aCC, <= 53800)
Index: integral_wrapper.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/mpl/aux_/integral_wrapper.hpp,v
retrieving revision 1.10
diff -r1.10 integral_wrapper.hpp
68c68
<     || BOOST_WORKAROUND(__HP_aCC, BOOST_TESTED_AT(53800))
---
...
|| BOOST_WORKAROUND(__HP_aCC, <= 53800)

[boost] [mpl] patches for outdated workarounds for aCC6

Boris Gubenko