diff --git a/src/cavegen.cpp b/src/cavegen.cpp
index fc9526b4f..0a950ecf4 100644
--- a/src/cavegen.cpp
+++ b/src/cavegen.cpp
@@ -515,7 +515,7 @@ void CavesRandomWalk::carveRoute(v3f vec, float f, bool randomize_xz)
 				v3s16 p(cp.X + x0, cp.Y + y0, cp.Z + z0);
 				p += of;
 
-				if (vm->m_area.contains(p) == false)
+				if (!vm->m_area.contains(p))
 					continue;
 
 				u32 i = vm->m_area.index(p);
@@ -819,7 +819,7 @@ void CavesV6::carveRoute(v3f vec, float f, bool randomize_xz,
 				v3s16 p(cp.X + x0, cp.Y + y0, cp.Z + z0);
 				p += of;
 
-				if (vm->m_area.contains(p) == false)
+				if (!vm->m_area.contains(p))
 					continue;
 
 				u32 i = vm->m_area.index(p);
@@ -858,7 +858,8 @@ inline s16 CavesV6::getSurfaceFromHeightmap(v3s16 p)
 			p.X >= node_min.X && p.X <= node_max.X) {
 		u32 index = (p.Z - node_min.Z) * ystride + (p.X - node_min.X);
 		return heightmap[index];
-	} else {
-		return water_level;
 	}
+
+	return water_level;
+
 }
diff --git a/src/chat.cpp b/src/chat.cpp
index 72abc4669..3785b7797 100644
--- a/src/chat.cpp
+++ b/src/chat.cpp
@@ -34,10 +34,6 @@ ChatBuffer::ChatBuffer(u32 scrollback):
 	m_empty_formatted_line.first = true;
 }
 
-ChatBuffer::~ChatBuffer()
-{
-}
-
 void ChatBuffer::addLine(std::wstring name, std::wstring text)
 {
 	ChatLine line(name, text);
@@ -79,9 +75,8 @@ const ChatLine& ChatBuffer::getLine(u32 index) const
 
 void ChatBuffer::step(f32 dtime)
 {
-	for (u32 i = 0; i < m_unformatted.size(); ++i)
-	{
-		m_unformatted[i].age += dtime;
+	for (ChatLine &line : m_unformatted) {
+		line.age += dtime;
 	}
 }
 
@@ -198,8 +193,8 @@ const ChatFormattedLine& ChatBuffer::getFormattedLine(u32 row) const
 	s32 index = m_scroll + (s32) row;
 	if (index >= 0 && index < (s32) m_formatted.size())
 		return m_formatted[index];
-	else
-		return m_empty_formatted_line;
+
+	return m_empty_formatted_line;
 }
 
 void ChatBuffer::scroll(s32 rows)
@@ -357,10 +352,11 @@ s32 ChatBuffer::getTopScrollPos() const
 	s32 rows = (s32) m_rows;
 	if (rows == 0)
 		return 0;
-	else if (formatted_count <= rows)
+
+	if (formatted_count <= rows)
 		return formatted_count - rows;
-	else
-		return 0;
+
+	return 0;
 }
 
 s32 ChatBuffer::getBottomScrollPos() const
@@ -381,10 +377,6 @@ ChatPrompt::ChatPrompt(const std::wstring &prompt, u32 history_limit):
 {
 }
 
-ChatPrompt::~ChatPrompt()
-{
-}
-
 void ChatPrompt::input(wchar_t ch)
 {
 	m_line.insert(m_cursor, 1, ch);
@@ -484,18 +476,15 @@ void ChatPrompt::nickCompletion(const std::list<std::string>& names, bool backwa
 
 	// find all names that start with the selected prefix
 	std::vector<std::wstring> completions;
-	for (std::list<std::string>::const_iterator
-			i = names.begin();
-			i != names.end(); ++i)
-	{
-		if (str_starts_with(narrow_to_wide(*i), prefix, true))
-		{
-			std::wstring completion = narrow_to_wide(*i);
+	for (const std::string &name : names) {
+		if (str_starts_with(narrow_to_wide(name), prefix, true)) {
+			std::wstring completion = narrow_to_wide(name);
 			if (prefix_start == 0)
 				completion += L": ";
 			completions.push_back(completion);
 		}
 	}
+
 	if (completions.empty())
 		return;
 
@@ -658,10 +647,6 @@ ChatBackend::ChatBackend():
 {
 }
 
-ChatBackend::~ChatBackend()
-{
-}
-
 void ChatBackend::addMessage(std::wstring name, std::wstring text)
 {
 	// Note: A message may consist of multiple lines, for example the MOTD.
diff --git a/src/chat.h b/src/chat.h
index 6a6b7c26f..e3961b3fa 100644
--- a/src/chat.h
+++ b/src/chat.h
@@ -73,7 +73,7 @@ class ChatBuffer
 {
 public:
 	ChatBuffer(u32 scrollback);
-	~ChatBuffer();
+	~ChatBuffer() = default;
 
 	// Append chat line
 	// Removes oldest chat line if scrollback size is reached
@@ -145,7 +145,7 @@ class ChatPrompt
 {
 public:
 	ChatPrompt(const std::wstring &prompt, u32 history_limit);
-	~ChatPrompt();
+	~ChatPrompt() = default;
 
 	// Input character or string
 	void input(wchar_t ch);
@@ -252,7 +252,7 @@ class ChatBackend
 {
 public:
 	ChatBackend();
-	~ChatBackend();
+	~ChatBackend() = default;
 
 	// Add chat message
 	void addMessage(std::wstring name, std::wstring text);