_START) {         return UPROPS_SRC_NONE; /* undefined */     } else if(which<UCHAR_INT_LIMIT) {         const IntProperty &prop=intProps[which-UCHAR_INT_START];         if(prop.mask!=0) {             return UPROPS_SRC_PROPSVEC;         } else {             return (UPropertySource)prop.column;         }     } else if(which<UCHAR_