void GfxDeviceRGBColorSpace::getCMYK(GfxColor *color, GfxCMYK *cmyk) {
  GfxColorComp c, m, y, k;

  c = clip01(gfxColorComp1 - color->c[0]);
  m = clip01(gfxColorComp1 - color->c[1]);
  y = clip01(gfxColorComp1 - color->c[2]);
  k = c;
  if (m < k) {
    k = m;
  }
  if (y < k) {
    k = y;
  }
  cmyk->c = c - k;
  cmyk->m = m - k;
  cmyk->y = y - k;
  cmyk->k = k;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.