Function infinity

src/backend/common/half.hpp:1092–1102

    }

    AF_CONSTEXPR static half infinity() {
        half out;
#ifdef __CUDA_ARCH__
        out.data_ = __half_raw{0x7C00};
#elif defined(AF_ONEAPI)
        out.data_ = std::numeric_limits<sycl::half>::infinity();
#else
        out.data_ = 0x7C00;
#endif
        return out;
    }
};

AF_CONSTEXPR __DH__ static inline bool operator==(