Function isnan

src/backend/common/half.hpp:1328–1338

}

AF_CONSTEXPR __DH__ static inline bool isnan(half val) noexcept {
#if __CUDA_ARCH__ >= 530
    return __hisnan(val.data_);
#elif defined(__CUDA_ARCH__)
    return ::isnan(__half2float(val));
#elif defined(AF_ONEAPI)
    return std::isnan(val.data_);
#else
    return (val.data_ & 0x7FFF) > 0x7C00;
#endif
}

}  // namespace common
}  // namespace arrayfire