Function sincos_2pibyn

numpy/fft/_pocketfft.c:211–215

  }

NOINLINE static void sincos_2pibyn(size_t n, double * restrict res)
  {
  sincos_2pibyn_half(n, res);
  fill_second_half(n, res);
  }

NOINLINE static size_t largest_prime_factor (size_t n)
  {