gistfile1.m

// defines...
#define SECTION_AND_ROW_INT(section, row) (row | section << 16)
#define SECTION_AND_ROW_FOR_FIRST_NAME SECTION_AND_ROW_INT(0, 0)
#define SECTION_AND_ROW_FOR_LAST_NAME  SECTION_AND_ROW_INT(0, 1)
#define SECTION_AND_ROW_FOR_AGE        SECTION_AND_ROW_INT(1, 0)

// ...

// sample switch

int sectionAndRow = SECTION_AND_ROW_INT(section, row);

switch(sectionAndRow){
	case SECTION_AND_ROW_FOR_FIRST_NAME:{
 		//...
		break;
	}
	case SECTION_AND_ROW_FOR_LAST_NAME:{
		//...
		break;
 	}
 	//...
}