is_nan.hpp

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#ifndef STAN_AGRAD_FWD_FUNCTIONS_IS_NAN_HPP
#define STAN_AGRAD_FWD_FUNCTIONS_IS_NAN_HPP

#include <stan/agrad/fwd/fvar.hpp>
#include <stan/math/functions/is_nan.hpp>

namespace stan {

  namespace agrad {

    template <typename T>
    inline 
    int
    is_nan(const fvar<T>& x) {
      using stan::math::is_nan;
      return is_nan(x.val());
    }

  }
}

#endif