boost/type_traits/detail/size_t_trait_def.hpp

   1
   2 // NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION
   3
   4 // Copyright Aleksey Gurtovoy 2002-2004
   5 //
   6 // Distributed under the Boost Software License, Version 1.0.
   7 // (See accompanying file LICENSE_1_0.txt or copy at
   8 // http://www.boost.org/LICENSE_1_0.txt)
   9
  10 // $Source$
  11 // $Date: 2005-08-25 12:27:28 -0400 (Thu, 25 Aug 2005) $
  12 // $Revision: 30670 $
  13
  14 #include <boost/type_traits/detail/template_arity_spec.hpp>
  15 #include <boost/type_traits/integral_constant.hpp>
  16 #include <boost/mpl/aux_/lambda_support.hpp>
  17 #include <boost/mpl/size_t.hpp>
  18
  19 #include <cstddef>
  20
  21 #if !defined(BOOST_MSVC) || BOOST_MSVC >= 1300
  22 #   define BOOST_TT_AUX_SIZE_T_BASE(C) ::boost::integral_constant<std::size_t,C>
  23 #   define BOOST_TT_AUX_SIZE_T_TRAIT_VALUE_DECL(C) /**/
  24 #else
  25 #   define BOOST_TT_AUX_SIZE_T_BASE(C) ::boost::mpl::size_t<C>
  26 #   define BOOST_TT_AUX_SIZE_T_TRAIT_VALUE_DECL(C) \
  27     typedef ::boost::mpl::size_t<C> base_; \
  28     using base_::value; \
  29     /**/
  30 #endif
  31
  32
  33 #define BOOST_TT_AUX_SIZE_T_TRAIT_DEF1(trait,T,C) \
  34 template< typename T > struct trait \
  35     : BOOST_TT_AUX_SIZE_T_BASE(C) \
  36 { \
  37     BOOST_TT_AUX_SIZE_T_TRAIT_VALUE_DECL(C) \
  38     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,trait,(T)) \
  39 }; \
  40 \
  41 BOOST_TT_AUX_TEMPLATE_ARITY_SPEC(1,trait) \
  42 /**/
  43
  44 #define BOOST_TT_AUX_SIZE_T_TRAIT_SPEC1(trait,spec,C) \
  45 template<> struct trait<spec> \
  46     : BOOST_TT_AUX_SIZE_T_BASE(C) \
  47 { \
  48     BOOST_TT_AUX_SIZE_T_TRAIT_VALUE_DECL(C) \
  49     BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC(1,trait,(spec)) \
  50 }; \
  51 /**/
  52
  53 #define BOOST_TT_AUX_SIZE_T_TRAIT_PARTIAL_SPEC1_1(param,trait,spec,C) \
  54 template< param > struct trait<spec> \
  55     : BOOST_TT_AUX_SIZE_T_BASE(C) \
  56 { \
  57 }; \
  58 /**/