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#ifndef PYTHONIC_NUMPY_ISNAN_HPP
#define PYTHONIC_NUMPY_ISNAN_HPP

#include "pythonic/include/numpy/isnan.hpp"

#include "pythonic/types/ndarray.hpp"
#include "pythonic/utils/functor.hpp"
#include "pythonic/utils/numpy_traits.hpp"

PYTHONIC_NS_BEGIN

namespace numpy
{
  namespace wrapper
  {
    template <class T>
    bool isnan(std::complex<T> const &v)
    {
      return std::isnan(v.real()) || std::isnan(v.imag());
    }

    template <class T>
    auto isnan(T const &v) -> typename std::enable_if<
        std::is_floating_point<typename std::decay<T>::type>::value, bool>::type
    {
      return std::isnan(v);
    }

    template <class T>
    auto isnan(T const &v) -> typename std::enable_if<
        !std::is_floating_point<typename std::decay<T>::type>::value,
        bool>::type
    {
      return false;
    }
  }

#define NUMPY_NARY_FUNC_NAME isnan
#define NUMPY_NARY_FUNC_SYM wrapper::isnan
#include "pythonic/types/numpy_nary_expr.hpp"
}
PYTHONIC_NS_END

#endif

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