(svn r16498) -Codechange: Remove hardly used HASBITS.

9 files changed, 27 insertions, 39 deletions

diff --git a/src/aircraft_cmd.cpp b/src/aircraft_cmd.cpp
index 817895f35..6a7c9258e 100644
--- a/src/aircraft_cmd.cpp
+++ b/src/aircraft_cmd.cpp
@@ -448,7 +448,7 @@ CommandCost CmdSellAircraft(TileIndex tile, DoCommandFlag flags, uint32 p1, uint
 	if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
 	if (!v->IsStoppedInDepot()) return_cmd_error(STR_ERROR_AIRCRAFT_MUST_BE_STOPPED);
 
-	if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
+	if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
 
 	CommandCost ret(EXPENSES_NEW_VEHICLES, -v->value);
 
@@ -1816,7 +1816,7 @@ static bool AirportHasBlock(Aircraft *v, const AirportFTA *current_pos, const Ai
 			airport_flags |= current_pos->block;
 		}
 
-		if (HASBITS(st->airport_flags, airport_flags)) {
+		if (st->airport_flags & airport_flags) {
 			v->cur_speed = 0;
 			v->subspeed = 0;
 			return true;
@@ -1857,7 +1857,7 @@ static bool AirportSetBlocks(Aircraft *v, const AirportFTA *current_pos, const A
 		if (current_pos->block == next->block) airport_flags ^= next->block;
 
 		Station *st = Station::Get(v->targetairport);
-		if (HASBITS(st->airport_flags, airport_flags)) {
+		if (st->airport_flags & airport_flags) {
 			v->cur_speed = 0;
 			v->subspeed = 0;
 			return false;
@@ -1911,7 +1911,7 @@ static bool AirportFindFreeTerminal(Aircraft *v, const AirportFTAClass *apc)
 
 		while (temp != NULL) {
 			if (temp->heading == 255) {
-				if (!HASBITS(st->airport_flags, temp->block)) {
+				if (!(st->airport_flags & temp->block)) {
 					/* read which group do we want to go to?
 					 * (the first free group) */
 					uint target_group = temp->next_position + 1;
@@ -1962,7 +1962,7 @@ static bool AirportFindFreeHelipad(Aircraft *v, const AirportFTAClass *apc)
 
 		while (temp != NULL) {
 			if (temp->heading == 255) {
-				if (!HASBITS(st->airport_flags, temp->block)) {
+				if (!(st->airport_flags & temp->block)) {
 
 					/* read which group do we want to go to?
 					 * (the first free group) */
diff --git a/src/autoreplace_cmd.cpp b/src/autoreplace_cmd.cpp
index fd1228501..948286d69 100644
--- a/src/autoreplace_cmd.cpp
+++ b/src/autoreplace_cmd.cpp
@@ -613,7 +613,7 @@ CommandCost CmdAutoreplaceVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1
 
 	if (!CheckOwnership(v->owner)) return CMD_ERROR;
 	if (!v->IsInDepot()) return CMD_ERROR;
-	if (HASBITS(v->vehstatus, VS_CRASHED)) return CMD_ERROR;
+	if (v->vehstatus & VS_CRASHED) return CMD_ERROR;
 
 	bool free_wagon = false;
 	if (v->type == VEH_TRAIN) {
diff --git a/src/core/bitmath_func.hpp b/src/core/bitmath_func.hpp
index f32aee67c..2da6d89ac 100644
--- a/src/core/bitmath_func.hpp
+++ b/src/core/bitmath_func.hpp
@@ -92,18 +92,6 @@ static FORCEINLINE bool HasBit(const T x, const uint8 y)
 }
 
 /**
- * Check several bits in a value.
- *
- * This macro checks if a value contains at least one bit of an other
- * value.
- *
- * @param x The first value
- * @param y The second value
- * @return True if at least one bit is set in both values, false else.
- */
-#define HASBITS(x, y) (((x) & (y)) != 0)
-
-/**
  * Set a bit in a variable.
  *
  * This function sets a bit in a variable. The variable is changed
diff --git a/src/newgrf_text.cpp b/src/newgrf_text.cpp
index 50e111e4a..acf5e8585 100644
--- a/src/newgrf_text.cpp
+++ b/src/newgrf_text.cpp
@@ -259,7 +259,7 @@ StringID AddGRFString(uint32 grfid, uint16 stringid, byte langid_to_add, bool ne
 	 * actually translated.
 	 */
 	if (!new_scheme) {
-		if (HASBITS(langid_to_add, GRFLB_AMERICAN | GRFLB_ENGLISH)) {
+		if (langid_to_add & (GRFLB_AMERICAN | GRFLB_ENGLISH)) {
 			langid_to_add = GRFLX_ENGLISH;
 		} else {
 			StringID ret = STR_EMPTY;
diff --git a/src/roadveh_cmd.cpp b/src/roadveh_cmd.cpp
index 59166a46a..8943b44d6 100644
--- a/src/roadveh_cmd.cpp
+++ b/src/roadveh_cmd.cpp
@@ -320,7 +320,7 @@ CommandCost CmdSellRoadVeh(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
 	RoadVehicle *v = RoadVehicle::GetIfValid(p1);
 	if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
 
-	if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
+	if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
 
 	if (!v->IsStoppedInDepot()) {
 		return_cmd_error(STR_ERROR_ROAD_MUST_BE_STOPPED_INSIDE_DEPOT);
diff --git a/src/ship_cmd.cpp b/src/ship_cmd.cpp
index a5c8b9195..226460ce1 100644
--- a/src/ship_cmd.cpp
+++ b/src/ship_cmd.cpp
@@ -845,7 +845,7 @@ CommandCost CmdSellShip(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p
 	Ship *v = Ship::GetIfValid(p1);
 	if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
 
-	if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
+	if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
 
 	if (!v->IsStoppedInDepot()) {
 		return_cmd_error(STR_ERROR_SHIP_MUST_BE_STOPPED_IN_DEPOT);
diff --git a/src/sortlist_type.h b/src/sortlist_type.h
index 29c7cc4c3..101d11152 100644
--- a/src/sortlist_type.h
+++ b/src/sortlist_type.h
@@ -106,7 +106,7 @@ public:
 	Listing GetListing() const
 	{
 		Listing l;
-		l.order = HASBITS(this->flags, VL_DESC);
+		l.order = (this->flags & VL_DESC) != 0;
 		l.criteria = this->sort_type;
 
 		return l;
@@ -159,7 +159,7 @@ public:
 	Filtering GetFiltering() const
 	{
 		Filtering f;
-		f.state = HASBITS(this->flags, VL_FILTER);
+		f.state = (this->flags & VL_FILTER) != 0;
 		f.criteria = this->filter_type;
 
 		return f;
@@ -214,7 +214,7 @@ public:
 	 */
 	bool IsDescSortOrder() const
 	{
-		return HASBITS(this->flags, VL_DESC);
+		return (this->flags & VL_DESC) != 0;
 	}
 
 	/**
@@ -241,7 +241,7 @@ public:
 	bool Sort(SortFunction *compare)
 	{
 		/* Do not sort if the resort bit is not set */
-		if (!HASBITS(this->flags, VL_RESORT)) return false;
+		if (!(this->flags & VL_RESORT)) return false;
 
 		CLRBITS(this->flags, VL_RESORT);
 
@@ -250,9 +250,9 @@ public:
 		/* Do not sort when the list is not sortable */
 		if (!this->IsSortable()) return false;
 
-		const bool desc = HASBITS(this->flags, VL_DESC);
+		const bool desc = (this->flags & VL_DESC) != 0;
 
-		if (HASBITS(this->flags, VL_FIRST_SORT)) {
+		if (this->flags & VL_FIRST_SORT) {
 			CLRBITS(this->flags, VL_FIRST_SORT);
 
 			QSortT(this->data, this->items, compare, desc);
@@ -292,7 +292,7 @@ public:
 	 */
 	bool IsFilterEnabled() const
 	{
-		return HASBITS(this->flags, VL_FILTER);
+		return (this->flags & VL_FILTER) != 0;
 	}
 
 	/**
@@ -319,7 +319,7 @@ public:
 	bool Filter(FilterFunction *decide, F filter_data)
 	{
 		/* Do not filter if the filter bit is not set */
-		if (!HASBITS(this->flags, VL_FILTER)) return false;
+		if (!(this->flags & VL_FILTER)) return false;
 
 		bool changed = false;
 		for (uint iter = 0; iter < this->items;) {
@@ -363,7 +363,7 @@ public:
 	 */
 	bool NeedRebuild() const
 	{
-		return HASBITS(this->flags, VL_REBUILD);
+		return (this->flags & VL_REBUILD) != 0;
 	}
 
 	/**
diff --git a/src/town_cmd.cpp b/src/town_cmd.cpp
index dc42786cb..6bf8c7941 100644
--- a/src/town_cmd.cpp
+++ b/src/town_cmd.cpp
@@ -959,7 +959,7 @@ static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDi
 	/* Make sure the direction is compatible with the slope.
 	 * Well we check if the slope has an up bit set in the
 	 * reverse direction. */
-	if (HASBITS(slope, InclinedSlope(bridge_dir))) return false;
+	if (slope & InclinedSlope(bridge_dir)) return false;
 
 	/* Assure that the bridge is connectable to the start side */
 	if (!(GetTownRoadBits(TileAddByDiagDir(tile, ReverseDiagDir(bridge_dir))) & DiagDirToRoadBits(bridge_dir))) return false;
@@ -2121,7 +2121,7 @@ static bool BuildTownHouse(Town *t, TileIndex tile)
 			SetBit(oneof, TOWN_HAS_STADIUM);
 		}
 
-		if (HASBITS(t->flags12, oneof)) continue;
+		if (t->flags12 & oneof) continue;
 
 		/* Make sure there is no slope? */
 		bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
diff --git a/src/train_cmd.cpp b/src/train_cmd.cpp
index 6ad8707c6..7a377098c 100644
--- a/src/train_cmd.cpp
+++ b/src/train_cmd.cpp
@@ -678,7 +678,7 @@ static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandF
 			/* do not connect new wagon with crashed/flooded consists */
 			if (w->tile == tile && IsFreeWagon(w) &&
 					w->engine_type == engine &&
-					!HASBITS(w->vehstatus, VS_CRASHED)) {
+					!(w->vehstatus & VS_CRASHED)) {
 				u = GetLastVehicleInChain(w);
 				break;
 			}
@@ -995,7 +995,7 @@ static Train *FindGoodVehiclePos(const Train *src)
 
 	Train *dst;
 	FOR_ALL_TRAINS(dst) {
-		if (IsFreeWagon(dst) && dst->tile == tile && !HASBITS(dst->vehstatus, VS_CRASHED)) {
+		if (IsFreeWagon(dst) && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
 			/* check so all vehicles in the line have the same engine. */
 			Train *t = dst;
 			while (t->engine_type == eng) {
@@ -1065,7 +1065,7 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 	if (src == NULL || !CheckOwnership(src->owner)) return CMD_ERROR;
 
 	/* Do not allow moving crashed vehicles inside the depot, it is likely to cause asserts later */
-	if (HASBITS(src->vehstatus, VS_CRASHED)) return CMD_ERROR;
+	if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
 
 	/* if nothing is selected as destination, try and find a matching vehicle to drag to. */
 	Train *dst;
@@ -1076,7 +1076,7 @@ CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 		if (dst == NULL || !CheckOwnership(dst->owner)) return CMD_ERROR;
 
 		/* Do not allow appending to crashed vehicles, too */
-		if (HASBITS(dst->vehstatus, VS_CRASHED)) return CMD_ERROR;
+		if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
 	}
 
 	/* if an articulated part is being handled, deal with its parent vehicle */
@@ -1416,7 +1416,7 @@ CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uin
 	if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
 	if (p2 > 1) return CMD_ERROR;
 
-	if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
+	if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
 
 	while (IsArticulatedPart(v)) v = v->Previous();
 	Train *first = v->First();
@@ -3574,7 +3574,7 @@ static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
 		 * As there might be more than two trains involved, we have to do that for all vehicles */
 		const Train *u;
 		FOR_ALL_TRAINS(u) {
-			if (HASBITS(u->vehstatus, VS_CRASHED) && (u->track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
+			if ((u->vehstatus & VS_CRASHED) && (u->track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
 				TrackBits trackbits = u->track;
 				if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
 					/* Vehicle is inside a wormhole, v->track contains no useful value then. */
@@ -4457,7 +4457,7 @@ bool Train::Tick()
 		assert(IsFrontEngine(this));
 
 		return TrainLocoHandler(this, true);
-	} else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
+	} else if (IsFreeWagon(this) && (this->vehstatus & VS_CRASHED)) {
 		/* Delete flooded standalone wagon chain */
 		if (++this->crash_anim_pos >= 4400) {
 			delete this;