ceph/src/boost/libs/detail/include/boost/detail/has_default_constructor.hpp

   1
   2 //  (C) Copyright Matthias Troyerk 2006.
   3 //  Use, modification and distribution are subject to the Boost Software License,
   4 //  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   5 //  http://www.boost.org/LICENSE_1_0.txt).
   6 //
   7 //  See http://www.boost.org/libs/type_traits for most recent version including documentation.
   8
   9 #ifndef BOOST_DETAIL_HAS_DEFAULT_CONSTRUCTOR_HPP_INCLUDED
  10 #define BOOST_DETAIL_HAS_DEFAULT_CONSTRUCTOR_HPP_INCLUDED
  11
  12 #include <boost/type_traits/has_trivial_constructor.hpp>
  13
  14 namespace boost { namespace detail {
  15
  16 /// type trait to check for a default constructor
  17 ///
  18 /// The default implementation just checks for a trivial constructor.
  19 /// Using some compiler magic it might be possible to provide a better default
  20
  21 template <class T>
  22 struct has_default_constructor
  23  : public has_trivial_constructor<T>
  24 {};
  25
  26 } } // namespace boost::detail
  27
  28
  29 #endif // BOOST_DETAIL_HAS_DEFAULT_CONSTRUCTOR_HPP_INCLUDED