Function isinf

src/backend/common/half.hpp:1318–1326

namespace arrayfire {
namespace common {
AF_CONSTEXPR __DH__ static bool isinf(half val) noexcept {
#if __CUDA_ARCH__ >= 530
    return __hisinf(val.data_);
#elif defined(__CUDA_ARCH__)
    return ::isinf(__half2float(val));
#else
    return val == half::infinity() || val == -half::infinity();
#endif
}

AF_CONSTEXPR __DH__ static inline bool isnan(half val) noexcept {
#if __CUDA_ARCH__ >= 530