Method floor

cpp/fory/util/float16.h:184–186

        static_cast<uint16_t>((a.bits & 0x7FFFu) | (b.bits & 0x8000u)));
  }
  [[nodiscard]] static float16_t floor(float16_t a) noexcept {
    return from_float(std::floor(a.to_float()));
  }
  [[nodiscard]] static float16_t ceil(float16_t a) noexcept {
    return from_float(std::ceil(a.to_float()));
  }