Cleanup: Replace FOR_ALL_SORTED_ROADTYPES macro with range iterator.

(cherry picked from commit de81afdf4b)

src/company_gui.cpp

@@ -1924,8 +1924,7 @@ struct CompanyInfrastructureWindow : Window
 
 				size->width = std::max(size->width, GetStringBoundingBox(widget == WID_CI_ROAD_DESC ? STR_COMPANY_INFRASTRUCTURE_VIEW_ROAD_SECT : STR_COMPANY_INFRASTRUCTURE_VIEW_TRAM_SECT).width);
 
-				RoadType rt;
-				FOR_ALL_SORTED_ROADTYPES(rt) {
+				for (const auto &rt : _sorted_roadtypes) {
 					if (HasBit(this->roadtypes, rt) && RoadTypeIsRoad(rt) == (widget == WID_CI_ROAD_DESC)) {
 						lines++;
 						SetDParam(0, GetRoadTypeInfo(rt)->strings.name);
@@ -2067,8 +2066,7 @@ struct CompanyInfrastructureWindow : Window
 				DrawString(r.left, r.right, y, widget == WID_CI_ROAD_DESC ? STR_COMPANY_INFRASTRUCTURE_VIEW_ROAD_SECT : STR_COMPANY_INFRASTRUCTURE_VIEW_TRAM_SECT);
 
 				/* Draw name of each valid roadtype. */
-				RoadType rt;
-				FOR_ALL_SORTED_ROADTYPES(rt) {
+				for (const auto &rt : _sorted_roadtypes) {
 					if (HasBit(this->roadtypes, rt) && RoadTypeIsRoad(rt) == (widget == WID_CI_ROAD_DESC)) {
 						SetDParam(0, GetRoadTypeInfo(rt)->strings.name);
 						DrawString(r.left + offs_left, r.right - offs_right, y += FONT_HEIGHT_NORMAL, STR_WHITE_STRING);
@@ -2081,8 +2079,7 @@ struct CompanyInfrastructureWindow : Window
 			case WID_CI_ROAD_COUNT:
 			case WID_CI_TRAM_COUNT: {
 				uint32 road_tram_total = widget == WID_CI_ROAD_COUNT ? c->infrastructure.GetRoadTotal() : c->infrastructure.GetTramTotal();
-				RoadType rt;
-				FOR_ALL_SORTED_ROADTYPES(rt) {
+				for (const auto &rt : _sorted_roadtypes) {
 					if (HasBit(this->roadtypes, rt) && RoadTypeIsRoad(rt) == (widget == WID_CI_ROAD_COUNT)) {
 						this->DrawCountLine(r, y, c->infrastructure.road[rt], RoadMaintenanceCost(rt, c->infrastructure.road[rt], road_tram_total));
 					}

src/road.h

@@ -321,10 +321,4 @@ bool HasAnyRoadTypesAvail(CompanyID company, RoadTramType rtt);
 extern std::vector<RoadType> _sorted_roadtypes;
 extern RoadTypes _roadtypes_hidden_mask;
 
-/**
- * Loop header for iterating over roadtypes, sorted by sortorder.
- * @param var Roadtype.
- */
-#define FOR_ALL_SORTED_ROADTYPES(var) for (uint8 index = 0; index < _sorted_roadtypes.size() && (var = _sorted_roadtypes[index], true) ; index++)
-
 #endif /* ROAD_H */

src/road_gui.cpp

@@ -1391,17 +1391,16 @@ DropDownList GetRoadTypeDropDownList(RoadTramTypes rtts, bool for_replacement, b
 	}
 
 	Dimension d = { 0, 0 };
-	RoadType rt;
 	/* Get largest icon size, to ensure text is aligned on each menu item. */
 	if (!for_replacement) {
-		FOR_ALL_SORTED_ROADTYPES(rt) {
+		for (const auto &rt : _sorted_roadtypes) {
 			if (!HasBit(used_roadtypes, rt)) continue;
 			const RoadTypeInfo *rti = GetRoadTypeInfo(rt);
 			d = maxdim(d, GetSpriteSize(rti->gui_sprites.build_x_road));
 		}
 	}
 
-	FOR_ALL_SORTED_ROADTYPES(rt) {
+	for (const auto &rt : _sorted_roadtypes) {
 		/* If it's not used ever, don't show it to the user. */
 		if (!HasBit(used_roadtypes, rt)) continue;
 
@@ -1443,13 +1442,12 @@ DropDownList GetScenRoadTypeDropDownList(RoadTramTypes rtts)
 
 	/* If it's not used ever, don't show it to the user. */
 	Dimension d = { 0, 0 };
-	RoadType rt;
-	FOR_ALL_SORTED_ROADTYPES(rt) {
+	for (const auto &rt : _sorted_roadtypes) {
 		if (!HasBit(used_roadtypes, rt)) continue;
 		const RoadTypeInfo *rti = GetRoadTypeInfo(rt);
 		d = maxdim(d, GetSpriteSize(rti->gui_sprites.build_x_road));
 	}
-	FOR_ALL_SORTED_ROADTYPES(rt) {
+	for (const auto &rt : _sorted_roadtypes) {
 		if (!HasBit(used_roadtypes, rt)) continue;
 
 		const RoadTypeInfo *rti = GetRoadTypeInfo(rt);