Re: [Boost-bugs] [Boost C++ Libraries] #3035: non-standard integral types not fully supported

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #3035: non-standard integral types not fully supported
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-05-15 11:39:55

#3035: non-standard integral types not fully supported
-------------------------------------+--------------------------------------
  Reporter:  Maxim.Yanchenko_at_[hidden]  |       Owner:  johnmaddock
      Type:  Bugs                    |      Status:  new        
 Milestone:  Boost 1.40.0            |   Component:  type_traits
   Version:  Boost 1.39.0            |    Severity:  Problem    
Resolution:                          |    Keywords:             
-------------------------------------+--------------------------------------

Comment(by nasonov):

 I added a TODO to the integral_promotion.hpp some time ago which says
 "common macro for this #if. Or better yet, PP SEQ of non-standard types."

 So, if we define BOOST_TT_AUX_NON_STANDARD_INTS:

 {{{
 #if (defined(BOOST_MSVC) && (BOOST_MSVC < 1300)) \
     || (defined(BOOST_INTEL_CXX_VERSION) && defined(_MSC_VER) &&
 (BOOST_INTEL_CXX_VERSION <= 600)))

 # define BOOST_TT_AUX_NON_STANDARD_INTS \
     (__int8) (unsigned __int8)  \
     (__int16)(unsigned __int16) \
     (__int32)(unsigned __int32)

 #elif defined(__BORLANDC__) && (__BORLANDC__ == 0x600) && (_MSC_VER <
 1300)

 # define BOOST_TT_AUX_NON_STANDARD_INTS \
     (__int8) (unsigned __int8)  \
     (__int16)(unsigned __int16) \
     (__int32)(unsigned __int32) \
     (__int64)(unsigned __int64)

 #endif
 }}}

 we should be able to change code in is_integral.hpp to something like:

 {{{
 #ifdef BOOST_TT_AUX_NON_STANDARD_INTS
 #define BOOST_TT_AUX_DECL(r, data, type)
 BOOST_TT_AUX_BOOL_TRAIT_CV_SPEC1(is_integral, type, true)
 BOOST_PP_SEQ_FOR_EACH(BOOST_TT_AUX_DECL, _,
 BOOST_TT_AUX_NON_STANDARD_INTS)
 #undef BOOST_TT_AUX_DECL
 #endif
 }}}

 and similarly in integral_promotion.hpp:

 {{{
 #ifdef BOOST_TT_AUX_NON_STANDARD_INTS
 #define BOOST_TT_AUX_DECL(r, data, type)
 BOOST_TT_AUX_PROMOTE_NONSTANDARD_TYPE(type)
 BOOST_PP_SEQ_FOR_EACH(BOOST_TT_AUX_DECL, _,
 BOOST_TT_AUX_NON_STANDARD_INTS)
 #undef BOOST_TT_AUX_DECL
 #endif
 }}}

 It's not as easy for make_signed and make_unsigned but they convert a non-
 standard type to a corrensponding standard type, e.g.
 make_unsigned<__int8>::type -> unsigned char.

 This macro can be also used in tests.

 Alex

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3035#comment:2>
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