Modernize various files (part 2)

* range-based for loops
* emplace_back instead of push_back
* code style
* C++ headers instead of C headers
* Default operators
* empty stl function

1 files changed, 52 insertions, 85 deletions

diff --git a/src/inventory.cpp b/src/inventory.cpp
index 4da380a24..82325997e 100644
--- a/src/inventory.cpp
+++ b/src/inventory.cpp
@@ -35,11 +35,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 static content_t content_translate_from_19_to_internal(content_t c_from)
 {
-	for(u32 i=0; i<sizeof(trans_table_19)/sizeof(trans_table_19[0]); i++)
-	{
-		if(trans_table_19[i][1] == c_from)
-		{
-			return trans_table_19[i][0];
+	for (const auto &tt : trans_table_19) {
+		if(tt[1] == c_from) {
+			return tt[0];
 		}
 	}
 	return c_from;
@@ -116,7 +114,7 @@ void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
 		NameIdMapping legacy_nimap;
 		content_mapnode_get_name_id_mapping(&legacy_nimap);
 		legacy_nimap.getName(material, name);
-		if(name == "")
+		if(name.empty())
 			name = "unknown_block";
 		if (itemdef)
 			name = itemdef->getAlias(name);
@@ -136,7 +134,7 @@ void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
 		NameIdMapping legacy_nimap;
 		content_mapnode_get_name_id_mapping(&legacy_nimap);
 		legacy_nimap.getName(material, name);
-		if(name == "")
+		if(name.empty())
 			name = "unknown_block";
 		if (itemdef)
 			name = itemdef->getAlias(name);
@@ -207,21 +205,20 @@ void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
 			// Read the count
 			std::string count_str;
 			std::getline(is, count_str, ' ');
-			if(count_str.empty())
-			{
+			if (count_str.empty()) {
 				count = 1;
 				break;
 			}
-			else
-				count = stoi(count_str);
+
+			count = stoi(count_str);
 
 			// Read the wear
 			std::string wear_str;
 			std::getline(is, wear_str, ' ');
 			if(wear_str.empty())
 				break;
-			else
-				wear = stoi(wear_str);
+
+			wear = stoi(wear_str);
 
 			// Read metadata
 			metadata.deSerialize(is);
@@ -388,17 +385,12 @@ InventoryList::InventoryList(const std::string &name, u32 size, IItemDefManager
 	clearItems();
 }
 
-InventoryList::~InventoryList()
-{
-}
-
 void InventoryList::clearItems()
 {
 	m_items.clear();
 
-	for(u32 i=0; i<m_size; i++)
-	{
-		m_items.push_back(ItemStack());
+	for (u32 i=0; i < m_size; i++) {
+		m_items.emplace_back();
 	}
 
 	//setDirty(true);
@@ -427,15 +419,10 @@ void InventoryList::serialize(std::ostream &os) const
 
 	os<<"Width "<<m_width<<"\n";
 
-	for(u32 i=0; i<m_items.size(); i++)
-	{
-		const ItemStack &item = m_items[i];
-		if(item.empty())
-		{
+	for (const auto &item : m_items) {
+		if (item.empty()) {
 			os<<"Empty";
-		}
-		else
-		{
+		} else {
 			os<<"Item ";
 			item.serialize(os);
 		}
@@ -464,17 +451,16 @@ void InventoryList::deSerialize(std::istream &is)
 		std::string name;
 		std::getline(iss, name, ' ');
 
-		if(name == "EndInventoryList")
-		{
+		if (name == "EndInventoryList") {
 			break;
 		}
+
 		// This is a temporary backwards compatibility fix
-		else if(name == "end")
-		{
+		if (name == "end") {
 			break;
 		}
-		else if(name == "Width")
-		{
+
+		if (name == "Width") {
 			iss >> m_width;
 			if (iss.fail())
 				throw SerializationError("incorrect width property");
@@ -551,9 +537,8 @@ u32 InventoryList::getWidth() const
 u32 InventoryList::getUsedSlots() const
 {
 	u32 num = 0;
-	for(u32 i=0; i<m_items.size(); i++)
-	{
-		if(!m_items[i].empty())
+	for (const auto &m_item : m_items) {
+		if (!m_item.empty())
 			num++;
 	}
 	return num;
@@ -672,20 +657,17 @@ bool InventoryList::roomForItem(const ItemStack &item_) const
 bool InventoryList::containsItem(const ItemStack &item, bool match_meta) const
 {
 	u32 count = item.count;
-	if(count == 0)
+	if (count == 0)
 		return true;
-	for(std::vector<ItemStack>::const_reverse_iterator
-			i = m_items.rbegin();
-			i != m_items.rend(); ++i)
-	{
-		if(count == 0)
+
+	for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
+		if (count == 0)
 			break;
-		if (i->name == item.name
-				&& (!match_meta || (i->metadata == item.metadata))) {
+		if (i->name == item.name && (!match_meta || (i->metadata == item.metadata))) {
 			if (i->count >= count)
 				return true;
-			else
-				count -= i->count;
+
+			count -= i->count;
 		}
 	}
 	return false;
@@ -694,15 +676,11 @@ bool InventoryList::containsItem(const ItemStack &item, bool match_meta) const
 ItemStack InventoryList::removeItem(const ItemStack &item)
 {
 	ItemStack removed;
-	for(std::vector<ItemStack>::reverse_iterator
-			i = m_items.rbegin();
-			i != m_items.rend(); ++i)
-	{
-		if(i->name == item.name)
-		{
+	for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
+		if (i->name == item.name) {
 			u32 still_to_remove = item.count - removed.count;
 			removed.addItem(i->takeItem(still_to_remove), m_itemdef);
-			if(removed.count == item.count)
+			if (removed.count == item.count)
 				break;
 		}
 	}
@@ -815,9 +793,8 @@ Inventory::~Inventory()
 void Inventory::clear()
 {
 	m_dirty = true;
-	for(u32 i=0; i<m_lists.size(); i++)
-	{
-		delete m_lists[i];
+	for (auto &m_list : m_lists) {
+		delete m_list;
 	}
 	m_lists.clear();
 }
@@ -825,11 +802,8 @@ void Inventory::clear()
 void Inventory::clearContents()
 {
 	m_dirty = true;
-	for(u32 i=0; i<m_lists.size(); i++)
-	{
-		InventoryList *list = m_lists[i];
-		for(u32 j=0; j<list->getSize(); j++)
-		{
+	for (InventoryList *list : m_lists) {
+		for (u32 j=0; j<list->getSize(); j++) {
 			list->deleteItem(j);
 		}
 	}
@@ -855,9 +829,8 @@ Inventory & Inventory::operator = (const Inventory &other)
 		m_dirty = true;
 		clear();
 		m_itemdef = other.m_itemdef;
-		for(u32 i=0; i<other.m_lists.size(); i++)
-		{
-			m_lists.push_back(new InventoryList(*other.m_lists[i]));
+		for (InventoryList *list : other.m_lists) {
+			m_lists.push_back(new InventoryList(*list));
 		}
 	}
 	return *this;
@@ -878,9 +851,7 @@ bool Inventory::operator == (const Inventory &other) const
 
 void Inventory::serialize(std::ostream &os) const
 {
-	for(u32 i=0; i<m_lists.size(); i++)
-	{
-		InventoryList *list = m_lists[i];
+	for (InventoryList *list : m_lists) {
 		os<<"List "<<list->getName()<<" "<<list->getSize()<<"\n";
 		list->serialize(os);
 	}
@@ -902,17 +873,16 @@ void Inventory::deSerialize(std::istream &is)
 		std::string name;
 		std::getline(iss, name, ' ');
 
-		if(name == "EndInventory")
-		{
+		if (name == "EndInventory") {
 			break;
 		}
+
 		// This is a temporary backwards compatibility fix
-		else if(name == "end")
-		{
+		if (name == "end") {
 			break;
 		}
-		else if(name == "List")
-		{
+
+		if (name == "List") {
 			std::string listname;
 			u32 listsize;
 
@@ -944,15 +914,14 @@ InventoryList * Inventory::addList(const std::string &name, u32 size)
 		}
 		return m_lists[i];
 	}
-	else
-	{
-		//don't create list with invalid name
-		if (name.find(" ") != std::string::npos) return NULL;
 
-		InventoryList *list = new InventoryList(name, size, m_itemdef);
-		m_lists.push_back(list);
-		return list;
-	}
+
+	//don't create list with invalid name
+	if (name.find(' ') != std::string::npos) return NULL;
+
+	InventoryList *list = new InventoryList(name, size, m_itemdef);
+	m_lists.push_back(list);
+	return list;
 }
 
 InventoryList * Inventory::getList(const std::string &name)
@@ -966,9 +935,7 @@ InventoryList * Inventory::getList(const std::string &name)
 std::vector<const InventoryList*> Inventory::getLists()
 {
 	std::vector<const InventoryList*> lists;
-	for(u32 i=0; i<m_lists.size(); i++)
-	{
-		InventoryList *list = m_lists[i];
+	for (auto list : m_lists) {
 		lists.push_back(list);
 	}
 	return lists;