(svn r26057) -Fix: a number of possibly uninitialised variables

src/core/pool_func.hpp

@@ -35,6 +35,9 @@ DEFINE_POOL_METHOD(inline)::Pool(const char *name) :
 		first_free(0),
 		first_unused(0),
 		items(0),
+#ifdef OTTD_ASSERT
+		checked(0),
+#endif /* OTTD_ASSERT */
 		cleaning(false),
 		data(NULL),
 		alloc_cache(NULL)

src/fios.h

@@ -41,7 +41,8 @@ struct LoadCheckData {
 	struct LoggedAction *gamelog_action;          ///< Gamelog actions
 	uint gamelog_actions;                         ///< Number of gamelog actions
 
-	LoadCheckData() : error_data(NULL), grfconfig(NULL), gamelog_action(NULL)
+	LoadCheckData() : error_data(NULL), grfconfig(NULL),
+			grf_compatibility(GLC_NOT_FOUND), gamelog_action(NULL), gamelog_actions(0)
 	{
 		this->Clear();
 	}

src/heightmap.cpp

@@ -46,9 +46,11 @@ static void ReadHeightmapPNGImageData(byte *map, png_structp png_ptr, png_infop
 	uint x, y;
 	byte gray_palette[256];
 	png_bytep *row_pointers = NULL;
+	bool has_palette = png_get_color_type(png_ptr, info_ptr) == PNG_COLOR_TYPE_PALETTE;
+	uint channels = png_get_channels(png_ptr, info_ptr);
 
 	/* Get palette and convert it to grayscale */
-	if (png_get_color_type(png_ptr, info_ptr) == PNG_COLOR_TYPE_PALETTE) {
+	if (has_palette) {
 		int i;
 		int palette_size;
 		png_color *palette;
@@ -79,11 +81,11 @@ static void ReadHeightmapPNGImageData(byte *map, png_structp png_ptr, png_infop
 	for (x = 0; x < png_get_image_width(png_ptr, info_ptr); x++) {
 		for (y = 0; y < png_get_image_height(png_ptr, info_ptr); y++) {
 			byte *pixel = &map[y * png_get_image_width(png_ptr, info_ptr) + x];
-			uint x_offset = x * png_get_channels(png_ptr, info_ptr);
+			uint x_offset = x * channels;
 
-			if (png_get_color_type(png_ptr, info_ptr) == PNG_COLOR_TYPE_PALETTE) {
+			if (has_palette) {
 				*pixel = gray_palette[row_pointers[y][x_offset]];
-			} else if (png_get_channels(png_ptr, info_ptr) == 3) {
+			} else if (channels == 3) {
 				*pixel = RGBToGrayscale(row_pointers[y][x_offset + 0],
 						row_pointers[y][x_offset + 1], row_pointers[y][x_offset + 2]);
 			} else {

src/network/core/tcp_game.cpp

@@ -26,7 +26,7 @@
  * Create a new socket for the game connection.
  * @param s The socket to connect with.
  */
-NetworkGameSocketHandler::NetworkGameSocketHandler(SOCKET s) : info(NULL),
+NetworkGameSocketHandler::NetworkGameSocketHandler(SOCKET s) : info(NULL), client_id(INVALID_CLIENT_ID),
 		last_frame(_frame_counter), last_frame_server(_frame_counter), last_packet(_realtime_tick)
 {
 	this->sock = s;

src/network/network_internal.h

@@ -155,9 +155,9 @@ bool IsNetworkCompatibleVersion(const char *version);
  */
 struct CommandPacket : CommandContainer {
 	/** Make sure the pointer is NULL. */
-	CommandPacket() : next(NULL) {}
+	CommandPacket() : next(NULL), company(INVALID_COMPANY), frame(0), my_cmd(false) {}
 	CommandPacket *next; ///< the next command packet (if in queue)
-	CompanyByte company; ///< company that is executing the command
+	CompanyID company;   ///< company that is executing the command
 	uint32 frame;        ///< the frame in which this packet is executed
 	bool my_cmd;         ///< did the command originate from "me"
 };

src/newgrf_config.cpp

@@ -226,7 +226,8 @@ GRFParameterInfo::GRFParameterInfo(uint nr) :
 	def_value(0),
 	param_nr(nr),
 	first_bit(0),
-	num_bit(32)
+	num_bit(32),
+	complete_labels(false)
 {}
 
 /**

src/newgrf_text.cpp

@@ -882,7 +882,7 @@ struct TextRefStack {
 	byte position;
 	bool used;
 
-	TextRefStack() : used(false) {}
+	TextRefStack() : position(0), used(false) {}
 
 	TextRefStack(const TextRefStack &stack) :
 		position(stack.position),

src/order_gui.cpp

@@ -349,8 +349,10 @@ void DrawOrderString(const Vehicle *v, const Order *order, int order_index, int
 
 static Order GetOrderCmdFromTile(const Vehicle *v, TileIndex tile)
 {
-	Order order;
+	/* Hack-ish; unpack order 0, so everything gets initialised with either zero
-	order.next  = NULL;
+	 * or a suitable default value for the variable. Then also override the index
+	 * as it is not coming from a pool, so would be initialised. */
+	Order order(0);
 	order.index = 0;
 
 	/* check depot first */

src/saveload/station_sl.cpp

@@ -241,7 +241,7 @@ std::list<CargoPacket *> _packets;
 uint32 _num_dests;
 
 struct FlowSaveLoad {
-	FlowSaveLoad() : via(0), share(0) {}
+	FlowSaveLoad() : source(0), via(0), share(0), restricted(false) {}
 	StationID source;
 	StationID via;
 	uint32 share;

src/script/script_info.hpp

@@ -32,6 +32,7 @@ static const int MAX_GET_SETTING_OPS    = 100000;
 class ScriptInfo : public SimpleCountedObject {
 public:
 	ScriptInfo() :
+		engine(NULL),
 		SQ_instance(NULL),
 		main_script(NULL),
 		tar_file(NULL),

src/script/script_instance.cpp

@@ -49,6 +49,7 @@ static void PrintFunc(bool error_msg, const SQChar *message)
 
 ScriptInstance::ScriptInstance(const char *APIName) :
 	engine(NULL),
+	versionAPI(NULL),
 	controller(NULL),
 	storage(NULL),
 	instance(NULL),

src/script/script_storage.hpp

@@ -76,6 +76,9 @@ public:
 		new_vehicle_id    (0),
 		new_sign_id       (0),
 		new_group_id      (0),
+		new_goal_id       (0),
+		new_story_page_id (0),
+		new_story_page_element_id(0),
 		/* calback_value (can't be set) */
 		road_type         (INVALID_ROADTYPE),
 		rail_type         (INVALID_RAILTYPE),

src/station_base.h

@@ -206,6 +206,7 @@ struct GoodsEntry {
 		rating(INITIAL_STATION_RATING),
 		last_speed(0),
 		last_age(255),
+		amount_fract(0),
 		link_graph(INVALID_LINK_GRAPH),
 		node(INVALID_NODE),
 		max_waiting_cargo(0)