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1 |
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2 #ifndef BOOST_MPL_AUX_HAS_REBIND_HPP_INCLUDED |
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3 #define BOOST_MPL_AUX_HAS_REBIND_HPP_INCLUDED |
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4 |
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5 // Copyright Aleksey Gurtovoy 2002-2004 |
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6 // |
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7 // Distributed under the Boost Software License, Version 1.0. |
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8 // (See accompanying file LICENSE_1_0.txt or copy at |
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9 // http://www.boost.org/LICENSE_1_0.txt) |
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10 // |
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11 // See http://www.boost.org/libs/mpl for documentation. |
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12 |
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13 // $Source: /cvsroot/boost/boost/boost/mpl/aux_/has_rebind.hpp,v $ |
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14 // $Date: 2005/08/25 16:27:21 $ |
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15 // $Revision: 1.14 $ |
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16 |
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17 #include <boost/mpl/aux_/config/msvc.hpp> |
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18 #include <boost/mpl/aux_/config/intel.hpp> |
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19 #include <boost/mpl/aux_/config/workaround.hpp> |
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20 |
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21 #if BOOST_WORKAROUND(__EDG_VERSION__, <= 244) && !defined(BOOST_INTEL_CXX_VERSION) |
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22 # include <boost/mpl/has_xxx.hpp> |
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23 #elif BOOST_WORKAROUND(BOOST_MSVC, < 1300) |
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24 # include <boost/mpl/has_xxx.hpp> |
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25 # include <boost/mpl/if.hpp> |
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26 # include <boost/mpl/bool.hpp> |
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27 # include <boost/mpl/aux_/msvc_is_class.hpp> |
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28 #elif BOOST_WORKAROUND(__BORLANDC__, < 0x600) |
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29 # include <boost/mpl/if.hpp> |
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30 # include <boost/mpl/bool.hpp> |
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31 # include <boost/mpl/aux_/yes_no.hpp> |
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32 # include <boost/mpl/aux_/config/static_constant.hpp> |
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33 # include <boost/type_traits/is_class.hpp> |
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34 #else |
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35 # include <boost/mpl/aux_/type_wrapper.hpp> |
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36 # include <boost/mpl/aux_/yes_no.hpp> |
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37 # include <boost/mpl/aux_/config/static_constant.hpp> |
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38 #endif |
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39 |
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40 namespace boost { namespace mpl { namespace aux { |
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41 |
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42 #if BOOST_WORKAROUND(__EDG_VERSION__, <= 244) && !defined(BOOST_INTEL_CXX_VERSION) |
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43 |
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44 BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_rebind, rebind, false) |
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45 |
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46 #elif BOOST_WORKAROUND(BOOST_MSVC, < 1300) |
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47 |
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48 BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(has_rebind_impl, rebind, false) |
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49 |
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50 template< typename T > |
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51 struct has_rebind |
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52 : if_< |
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53 msvc_is_class<T> |
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54 , has_rebind_impl<T> |
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55 , bool_<false> |
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56 >::type |
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57 { |
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58 }; |
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59 |
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60 #else // the rest |
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61 |
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62 template< typename T > struct has_rebind_tag {}; |
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63 no_tag operator|(has_rebind_tag<int>, void const volatile*); |
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64 |
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65 # if !BOOST_WORKAROUND(__BORLANDC__, < 0x600) |
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66 template< typename T > |
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67 struct has_rebind |
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68 { |
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69 static has_rebind_tag<T>* get(); |
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70 BOOST_STATIC_CONSTANT(bool, value = |
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71 sizeof(has_rebind_tag<int>() | get()) == sizeof(yes_tag) |
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72 ); |
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73 }; |
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74 # else // __BORLANDC__ |
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75 template< typename T > |
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76 struct has_rebind_impl |
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77 { |
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78 static T* get(); |
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79 BOOST_STATIC_CONSTANT(bool, value = |
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80 sizeof(has_rebind_tag<int>() | get()) == sizeof(yes_tag) |
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81 ); |
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82 }; |
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83 |
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84 template< typename T > |
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85 struct has_rebind |
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86 : if_< |
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87 is_class<T> |
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88 , has_rebind_impl<T> |
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89 , bool_<false> |
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90 >::type |
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91 { |
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92 }; |
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93 # endif // __BORLANDC__ |
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94 |
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95 #endif |
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96 |
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97 }}} |
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98 |
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99 #endif // BOOST_MPL_AUX_HAS_REBIND_HPP_INCLUDED |