Fix: conversion to smaller type warnings

src/group_gui.cpp

@@ -606,13 +606,13 @@ class VehicleGroupWindow : public BaseVehicleListWindow {
 
 			case WID_GL_LIST_GROUP: {
 				int y1 = r.top;
-				int max = std::min<size_t>(this->group_sb->GetPosition() + this->group_sb->GetCapacity(), this->groups.size());
-				for (int i = this->group_sb->GetPosition(); i < max; ++i) {
+				size_t max = std::min<size_t>(this->group_sb->GetPosition() + this->group_sb->GetCapacity(), this->groups.size());
+				for (size_t i = this->group_sb->GetPosition(); i < max; ++i) {
 					const Group *g = this->groups[i];
 
 					assert(g->owner == this->owner);
 
-					DrawGroupInfo(y1, r.left, r.right, g->index, this->indents[i] * WidgetDimensions::scaled.hsep_indent, HasBit(g->flags, GroupFlags::GF_REPLACE_PROTECTION), g->folded || (i + 1 < (int)this->groups.size() && indents[i + 1] > this->indents[i]));
+					DrawGroupInfo(y1, r.left, r.right, g->index, this->indents[i] * WidgetDimensions::scaled.hsep_indent, HasBit(g->flags, GroupFlags::GF_REPLACE_PROTECTION), g->folded || (i + 1 < this->groups.size() && indents[i + 1] > this->indents[i]));
 
 					y1 += this->tiny_step_height;
 				}
@@ -630,8 +630,8 @@ class VehicleGroupWindow : public BaseVehicleListWindow {
 				if (this->vli.index != ALL_GROUP && this->grouping == GB_NONE) {
 					/* Mark vehicles which are in sub-groups (only if we are not using shared order coalescing) */
 					Rect mr = r.WithHeight(this->resize.step_height);
-					uint max = static_cast<uint>(std::min<size_t>(this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->vehgroups.size()));
-					for (uint i = this->vscroll->GetPosition(); i < max; ++i) {
+					size_t max = std::min<size_t>(this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->vehgroups.size());
+					for (size_t i = this->vscroll->GetPosition(); i < max; ++i) {
 						const Vehicle *v = this->vehgroups[i].GetSingleVehicle();
 						if (v->group_id != this->vli.index) {
 							GfxFillRect(mr.Shrink(WidgetDimensions::scaled.bevel), _colour_gradient[COLOUR_GREY][3], FILLRECT_CHECKER);

src/highscore.cpp

@@ -132,7 +132,7 @@ void SaveToHighScore()
 		for (i = 0; i < SP_SAVED_HIGHSCORE_END; i++) {
 			for (hs = _highscore_table[i]; hs != endof(_highscore_table[i]); hs++) {
 				/* First character is a command character, so strlen will fail on that */
-				byte length = std::min(sizeof(hs->company), StrEmpty(hs->company) ? 0 : strlen(&hs->company[1]) + 1);
+				byte length = ClampTo<byte>(std::min(sizeof(hs->company), StrEmpty(hs->company) ? 0 : strlen(&hs->company[1]) + 1));
 
 				if (fwrite(&length, sizeof(length), 1, fp)       != 1 || // write away string length
 						fwrite(hs->company, length, 1, fp)           >  1 || // Yes... could be 0 bytes too

src/station_gui.cpp

@@ -432,15 +432,15 @@ class CompanyStationsWindow : public Window
 
 			case WID_STL_LIST: {
 				bool rtl = _current_text_dir == TD_RTL;
-				int max = std::min<size_t>(this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->stations.size());
+				size_t max = std::min<size_t>(this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->stations.size());
 				Rect tr = r.Shrink(WidgetDimensions::scaled.framerect);
 				uint line_height = this->GetWidget<NWidgetBase>(widget)->resize_y;
 				/* Spacing between station name and first rating graph. */
 				int text_spacing = WidgetDimensions::scaled.hsep_wide;
 				/* Spacing between additional rating graphs. */
 				int rating_spacing = WidgetDimensions::scaled.hsep_normal;
 
-				for (int i = this->vscroll->GetPosition(); i < max; ++i) { // do until max number of stations of owner
+				for (size_t i = this->vscroll->GetPosition(); i < max; ++i) { // do until max number of stations of owner
 					const Station *st = this->stations[i];
 					assert(st->xy != INVALID_TILE);