1817 static PyObject* 
1818 _getextrema(ImagingObject* self, PyObject* args)
1819 {
1820     union {
1821         UINT8 u[2];
1822         INT32 i[2];
1823         FLOAT32 f[2];
1824     } extrema;
1825     int status;
1826     
1827     status = ImagingGetExtrema(self->image, &extrema);
1828     if (status < 0)
when considering range: -0x80000000 <= value <= -1
taking True path
1829         return NULL;
1830 
1831     if (status)
1832         switch (self->image->type) {
1833         case IMAGING_TYPE_UINT8:
1834             return Py_BuildValue("ii", extrema.u[0], extrema.u[1]);
1835         case IMAGING_TYPE_INT32:
1836             return Py_BuildValue("ii", extrema.i[0], extrema.i[1]);
1837         case IMAGING_TYPE_FLOAT32:
1838             return Py_BuildValue("dd", extrema.f[0], extrema.f[1]);
1839         }
1840 
1841     Py_INCREF(Py_None);
1842     return Py_None;
1843 }
returning (PyObject*)NULL without setting an exception