Function abs

include/cute/numeric/math.hpp:65–75

template <class T,
          __CUTE_REQUIRES(is_arithmetic<T>::value)>
CUTE_HOST_DEVICE constexpr
auto
abs(T const& t) {
  if constexpr (is_signed<T>::value) {
    return t < T(0) ? -t : t;
  } else {
    return t;
  }

  CUTE_GCC_UNREACHABLE;
}

// Returns 1 if x > 0, -1 if x < 0, and 0 if x is zero.
template <class T,