Method round

src/core/Rounding.cpp:36–69

using namespace std;

int arm_compute::round(float x, RoundingPolicy rounding_policy)
{
    using namespace std;
    int rounded = 0;
    switch (rounding_policy)
    {
        case RoundingPolicy::TO_ZERO:
        {
            rounded = static_cast<int>(x);
            break;
        }
        case RoundingPolicy::TO_NEAREST_UP:
        {
            rounded = static_cast<int>(support::cpp11::round(x));
            break;
        }
        case RoundingPolicy::TO_NEAREST_EVEN:
        {
#ifdef __aarch64__
            asm("fcvtns %x[res], %s[value]" : [res] "=r"(rounded) : [value] "w"(x));
#else  // __aarch64__
            ARM_COMPUTE_ERROR("TO_NEAREST_EVEN rounding policy is not supported.");
#endif // __aarch64__
            break;
        }
        default:
        {
            ARM_COMPUTE_ERROR("Unsupported rounding policy.");
            break;
        }
    }

    return rounded;
}