is_complex.hpp 952 B

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  1. // (C) Copyright John Maddock 2007.
  2. // Use, modification and distribution are subject to the Boost Software License,
  3. // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  4. // http://www.boost.org/LICENSE_1_0.txt).
  5. //
  6. // See http://www.boost.org/libs/type_traits for most recent version including documentation.
  7. #ifndef BOOST_TT_IS_COMPLEX_HPP
  8. #define BOOST_TT_IS_COMPLEX_HPP
  9. #include <boost/config.hpp>
  10. #include <complex>
  11. #include <boost/type_traits/integral_constant.hpp>
  12. namespace boost {
  13. template <class T> struct is_complex : public false_type {};
  14. template <class T> struct is_complex<const T > : public is_complex<T>{};
  15. template <class T> struct is_complex<volatile const T > : public is_complex<T>{};
  16. template <class T> struct is_complex<volatile T > : public is_complex<T>{};
  17. template <class T> struct is_complex<std::complex<T> > : public true_type{};
  18. } // namespace boost
  19. #endif //BOOST_TT_IS_COMPLEX_HPP