boost/mpl/aux_/arithmetic_op.hpp

   1
   2 // NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION
   3
   4 // Copyright Aleksey Gurtovoy 2000-2004
   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 // See http://www.boost.org/libs/mpl for documentation.
  11
  12 // $Id: arithmetic_op.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
  13 // $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
  14 // $Revision: 49267 $
  15
  16 #if !defined(BOOST_MPL_PREPROCESSING_MODE)
  17 #   include <boost/mpl/integral_c.hpp>
  18 #   include <boost/mpl/aux_/largest_int.hpp>
  19 #   include <boost/mpl/aux_/value_wknd.hpp>
  20 #endif
  21
  22 #if !defined(AUX778076_OP_PREFIX)
  23 #   define AUX778076_OP_PREFIX AUX778076_OP_NAME
  24 #endif
  25
  26 #include <boost/mpl/aux_/numeric_op.hpp>
  27 #include <boost/mpl/aux_/config/static_constant.hpp>
  28 #include <boost/mpl/aux_/config/use_preprocessed.hpp>
  29
  30 #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
  31     && !defined(BOOST_MPL_PREPROCESSING_MODE)
  32
  33 #   define BOOST_MPL_PREPROCESSED_HEADER AUX778076_OP_PREFIX.hpp
  34 #   include <boost/mpl/aux_/include_preprocessed.hpp>
  35
  36 #else
  37
  38 #   include <boost/mpl/aux_/config/workaround.hpp>
  39 #   include <boost/preprocessor/cat.hpp>
  40
  41
  42 namespace boost { namespace mpl {
  43
  44 #if defined(BOOST_MPL_CFG_NO_NESTED_VALUE_ARITHMETIC)
  45 namespace aux {
  46 template< typename T, T n1, T n2 >
  47 struct BOOST_PP_CAT(AUX778076_OP_PREFIX,_wknd)
  48 {
  49     BOOST_STATIC_CONSTANT(T, value = (n1 AUX778076_OP_TOKEN n2));
  50     typedef integral_c<T,value> type;
  51 };
  52 }
  53 #endif
  54
  55 template<>
  56 struct AUX778076_OP_IMPL_NAME<integral_c_tag,integral_c_tag>
  57 {
  58     template< typename N1, typename N2 > struct apply
  59 #if !defined(BOOST_MPL_CFG_NO_NESTED_VALUE_ARITHMETIC)
  60         : integral_c<
  61               typename aux::largest_int<
  62                   typename N1::value_type
  63                 , typename N2::value_type
  64                 >::type
  65             , ( BOOST_MPL_AUX_VALUE_WKND(N1)::value
  66                   AUX778076_OP_TOKEN BOOST_MPL_AUX_VALUE_WKND(N2)::value
  67                 )
  68             >
  69 #else
  70         : aux::BOOST_PP_CAT(AUX778076_OP_PREFIX,_wknd)<
  71               typename aux::largest_int<
  72                   typename N1::value_type
  73                 , typename N2::value_type
  74                 >::type
  75             , N1::value
  76             , N2::value
  77             >::type
  78 #endif
  79     {
  80     };
  81 };
  82
  83 }}
  84
  85 #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
  86
  87 #undef AUX778076_OP_TAG_NAME
  88 #undef AUX778076_OP_IMPL_NAME
  89 #undef AUX778076_OP_ARITY
  90 #undef AUX778076_OP_PREFIX
  91 #undef AUX778076_OP_NAME
  92 #undef AUX778076_OP_TOKEN