Add default cases to some switch statements

This squelches several compiler warnings.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

src/day.c

@@ -139,6 +139,8 @@ void day_item_erase_note(struct day_item *day)
 	case RECUR_EVNT:
 		erase_note(&day->item.rev->note);
 		break;
+	default:
+		break;
 	}
 }
 
@@ -178,6 +180,8 @@ void day_item_add_exc(struct day_item *day, long date)
 	case RECUR_APPT:
 		recur_apoint_add_exc(day->item.rapt, date);
 		break;
+	default:
+		break;
 	}
 }
 
@@ -646,9 +650,12 @@ struct day_item *day_cut_item(long date, int item_number)
 /* Paste a previously cut item. */
 int day_paste_item(struct day_item *p, long date)
 {
-	switch (p->type) {
+	if (!p->type) {
-	case 0:
+		/* No previously cut item. */
 		return 0;
+	}
+
+	switch (p->type) {
 	case EVNT:
 		event_paste_item(p->item.ev, date);
 		break;
@@ -701,6 +708,8 @@ void day_edit_note(struct day_item *p, const char *editor)
 	case APPT:
 		p->item.apt->note = note;
 		break;
+	default:
+		break;
 	}
 }
 
@@ -720,5 +729,7 @@ void day_item_switch_notify(struct day_item *p)
 	case APPT:
 		apoint_switch_notify(p->item.apt);
 		break;
+	default:
+		break;
 	}
 }

src/ui-day.c

@@ -393,6 +393,8 @@ void ui_day_item_edit(void)
 			return;
 		}
 		break;
+	default:
+		break;
 	}
 
 	ui_calendar_monthly_view_cache_set_invalid();
@@ -436,6 +438,8 @@ void ui_day_item_pipe(void)
 		case APPT:
 			apoint_write(p->item.apt, fpout);
 			break;
+		default:
+			break;
 		}
 
 		fclose(fpout);
@@ -767,10 +771,12 @@ void ui_day_item_repeat(void)
 /* Free the current cut item, if any. */
 void ui_day_item_cut_free(unsigned reg)
 {
+	if (!day_cut[reg].type) {
+		/* No previously cut item, don't free anything. */
+		return;
+	}
+
 	switch (day_cut[reg].type) {
-	case 0:
-		/* No previous item, don't free anything. */
-		break;
 	case APPT:
 		apoint_free(day_cut[reg].item.apt);
 		break;
@@ -783,6 +789,8 @@ void ui_day_item_cut_free(unsigned reg)
 	case RECUR_EVNT:
 		recur_event_free(day_cut[reg].item.rev);
 		break;
+	default:
+		break;
 	}
 }
 

src/utils.c

@@ -867,6 +867,8 @@ int parse_duration(const char *string, unsigned *duration)
 			case STATE_HHMM_MM:
 				return 0;
 				break;
+			default:
+				break;
 			}
 
 			in = 0;