ceph/src/boost/libs/mpl/include/boost/mpl/print.hpp

   1
   2 #ifndef BOOST_MPL_PRINT_HPP_INCLUDED
   3 #define BOOST_MPL_PRINT_HPP_INCLUDED
   4
   5 // Copyright David Abrahams 2003
   6 // Copyright Aleksey Gurtovoy 2004
   7 //
   8 // Distributed under the Boost Software License, Version 1.0.
   9 // (See accompanying file LICENSE_1_0.txt or copy at
  10 // http://www.boost.org/LICENSE_1_0.txt)
  11 //
  12 // See http://www.boost.org/libs/mpl for documentation.
  13
  14 // $Id$
  15 // $Date$
  16 // $Revision$
  17
  18 #include <boost/mpl/aux_/config/msvc.hpp>
  19 #include <boost/mpl/identity.hpp>
  20
  21 namespace boost { namespace mpl {
  22
  23 namespace aux {
  24 #if defined(BOOST_MSVC)
  25 # pragma warning(push, 3)
  26 // we only want one warning from MSVC, so turn off the other one
  27 # pragma warning(disable: 4307)
  28 #elif defined(__MWERKS__)
  29 # pragma warn_hidevirtual on
  30    struct print_base { virtual void f() {} };
  31 #endif
  32
  33 #if defined(__EDG_VERSION__)
  34   template <class T>
  35   struct dependent_unsigned
  36   {
  37       static const unsigned value = 1;
  38   };
  39 #endif
  40 } // namespace aux
  41
  42 template <class T>
  43 struct print
  44     : mpl::identity<T>
  45 #if defined(__MWERKS__)
  46     , aux::print_base
  47 #endif
  48 {
  49 #if defined(__clang__)
  50 # pragma clang diagnostic push
  51 # pragma clang diagnostic ignored "-Wc++11-extensions"
  52     const int m_x = 1 / (sizeof(T) - sizeof(T));
  53 # pragma clang diagnostic pop
  54 #elif defined(BOOST_MSVC)
  55     enum { n = sizeof(T) + -1 };
  56 #elif defined(__MWERKS__)
  57     void f(int);
  58 #else
  59     enum {
  60         n =
  61 # if defined(__EDG_VERSION__)
  62            aux::dependent_unsigned<T>::value > -1
  63 # else
  64            sizeof(T) > -1
  65 # endif
  66         };
  67 #endif
  68 };
  69
  70 #if defined(BOOST_MSVC)
  71 # pragma warning(pop)
  72 #elif defined(__MWERKS__)
  73 # pragma warn_hidevirtual reset
  74 #endif
  75
  76 }}
  77
  78 #endif // BOOST_MPL_PRINT_HPP_INCLUDED