boost/function_types/is_function.hpp

   1
   2 // (C) Copyright Tobias Schwinger
   3 //
   4 // Use modification and distribution are subject to the boost Software License,
   5 // Version 1.0. (See http://www.boost.org/LICENSE_1_0.txt).
   6 //------------------------------------------------------------------------------
   7
   8 #ifndef BOOST_FT_IS_FUNCTION_HPP_INCLUDED
   9 #define BOOST_FT_IS_FUNCTION_HPP_INCLUDED
  10
  11 #include <boost/mpl/aux_/lambda_support.hpp>
  12 #include <boost/type_traits/detail/template_arity_spec.hpp>
  13
  14 #include <boost/function_types/components.hpp>
  15
  16 namespace boost
  17 {
  18   namespace function_types
  19   {
  20     template< typename T, typename Tag = null_tag >
  21     struct is_function
  22       : function_types::represents
  23         < function_types::components<T>
  24         , function_types::tag<Tag ,detail::function_tag>
  25         >
  26     {
  27       BOOST_MPL_AUX_LAMBDA_SUPPORT(2,is_function,(T,Tag))
  28     };
  29   }
  30   BOOST_TT_AUX_TEMPLATE_ARITY_SPEC(2,function_types::is_function)
  31 }
  32
  33 #endif
  34