Fix compiler warnings

lib/base/object-packer.cpp

@@ -242,5 +242,5 @@ String icinga::PackObject(const Value& value)
 	std::string builder;
 	PackAny(value, builder);
 
-	return std::move(builder);
+	return builder;
 }

lib/base/tcpsocket.cpp

@@ -32,8 +32,8 @@ void TcpSocket::Bind(const String& node, const String& service, int family)
 {
 	addrinfo hints;
 	addrinfo *result;
-	int error;
-	const char *func;
+	int error = 0;
+	const char *func = nullptr;
 
 	memset(&hints, 0, sizeof(hints));
 	hints.ai_family = family;
@@ -126,8 +126,8 @@ void TcpSocket::Connect(const String& node, const String& service)
 {
 	addrinfo hints;
 	addrinfo *result;
-	int error;
-	const char *func;
+	int error = 0;
+	const char *func = nullptr;
 
 	memset(&hints, 0, sizeof(hints));
 	hints.ai_family = AF_UNSPEC;

lib/base/tcpsocket.hpp

@@ -54,7 +54,7 @@ void Connect(Socket& socket, const String& node, const String& service)
 		} catch (const std::exception& ex) {
 			auto se (dynamic_cast<const boost::system::system_error*>(&ex));
 
-			if (se && se->code() == boost::asio::error::operation_aborted || ++current == result.end()) {
+			if ((se && se->code() == boost::asio::error::operation_aborted) || ++current == result.end()) {
 				throw;
 			}
 
@@ -84,7 +84,7 @@ void Connect(Socket& socket, const String& node, const String& service, boost::a
 		} catch (const std::exception& ex) {
 			auto se (dynamic_cast<const boost::system::system_error*>(&ex));
 
-			if (se && se->code() == boost::asio::error::operation_aborted || ++current == result.end()) {
+			if ((se && se->code() == boost::asio::error::operation_aborted) || ++current == result.end()) {
 				throw;
 			}
 

lib/base/workqueue.cpp

@@ -16,7 +16,7 @@ boost::thread_specific_ptr<WorkQueue *> l_ThreadWorkQueue;
 
 WorkQueue::WorkQueue(size_t maxItems, int threadCount, LogSeverity statsLogLevel)
 	: m_ID(m_NextID++), m_ThreadCount(threadCount), m_MaxItems(maxItems),
-	m_TaskStats(15 * 60), m_StatsLogLevel(statsLogLevel)
+	m_StatsLogLevel(statsLogLevel), m_TaskStats(15 * 60)
 {
 	/* Initialize logger. */
 	m_StatusTimerTimeout = Utility::GetTime();

lib/config/config_parser.yy

@@ -280,7 +280,7 @@ std::unique_ptr<Expression> ConfigCompiler::Compile()
 
 	std::unique_ptr<DictExpression> expr{new DictExpression(std::move(dlist))};
 	expr->MakeInline();
-	return std::move(expr);
+	return expr;
 }
 
 #define scanner (context->GetScanner())

lib/config/configcompiler.cpp

@@ -146,7 +146,7 @@ std::unique_ptr<Expression> ConfigCompiler::HandleInclude(const String& relative
 
 	std::unique_ptr<DictExpression> expr{new DictExpression(std::move(expressions))};
 	expr->MakeInline();
-	return std::move(expr);
+	return expr;
 }
 
 /**
@@ -174,7 +174,7 @@ std::unique_ptr<Expression> ConfigCompiler::HandleIncludeRecursive(const String&
 
 	std::unique_ptr<DictExpression> dict{new DictExpression(std::move(expressions))};
 	dict->MakeInline();
-	return std::move(dict);
+	return dict;
 }
 
 void ConfigCompiler::HandleIncludeZone(const String& relativeBase, const String& tag, const String& path, const String& pattern, const String& package, std::vector<std::unique_ptr<Expression> >& expressions)

lib/icinga/legacytimeperiod.cpp

@@ -541,7 +541,7 @@ Dictionary::Ptr LegacyTimePeriod::FindNextSegment(const String& daydef, const St
 				ProcessTimeRanges(timeranges, &iter, segments);
 
 				Dictionary::Ptr bestSegment;
-				double bestBegin;
+				double bestBegin = 0;
 
 				ObjectLock olock(segments);
 				for (Dictionary::Ptr segment : segments) {

lib/icingadb/icingadb-objects.cpp

@@ -1929,10 +1929,10 @@ unsigned short GetPreviousState(const Checkable::Ptr& checkable, const Service::
 {
 	auto phs ((type == StateTypeHard ? checkable->GetLastHardStatesRaw() : checkable->GetLastSoftStatesRaw()) % 100u);
 
-	if (service) {
+	if (service || phs == 99) {
 		return phs;
 	} else {
-		return phs == 99 ? phs : Host::CalculateState(ServiceState(phs));
+		return Host::CalculateState(ServiceState(phs));
 	}
 }
 

lib/icingadb/redisconnection.cpp

@@ -41,11 +41,11 @@ RedisConnection::RedisConnection(const String& host, int port, const String& pat
 RedisConnection::RedisConnection(boost::asio::io_context& io, String host, int port, String path, String username, String password,
 	int db, bool useTls, bool insecure, String certPath, String keyPath, String caPath, String crlPath,
 	String tlsProtocolmin, String cipherList, double connectTimeout, DebugInfo di, const RedisConnection::Ptr& parent)
-	: m_Host(std::move(host)), m_Port(port), m_Path(std::move(path)), m_Username(std::move(username)), m_Password(std::move(password)),
+	: m_Path(std::move(path)), m_Host(std::move(host)), m_Port(port), m_Username(std::move(username)), m_Password(std::move(password)),
 	  m_DbIndex(db), m_CertPath(std::move(certPath)), m_KeyPath(std::move(keyPath)), m_Insecure(insecure),
 	  m_CaPath(std::move(caPath)), m_CrlPath(std::move(crlPath)), m_TlsProtocolmin(std::move(tlsProtocolmin)),
-	  m_CipherList(std::move(cipherList)), m_ConnectTimeout(connectTimeout), m_DebugInfo(std::move(di)), m_Connecting(false), m_Connected(false),
-	  m_Started(false), m_Strand(io), m_QueuedWrites(io), m_QueuedReads(io), m_LogStatsTimer(io), m_Parent(parent)
+	  m_CipherList(std::move(cipherList)), m_ConnectTimeout(connectTimeout), m_DebugInfo(std::move(di)), m_Strand(io),
+	  m_Connecting(false), m_Connected(false), m_Started(false), m_QueuedWrites(io), m_QueuedReads(io), m_LogStatsTimer(io), m_Parent(parent)
 {
 	if (useTls && m_Path.IsEmpty()) {
 		UpdateTLSContext();
@@ -224,7 +224,7 @@ void RedisConnection::EnqueueCallback(const std::function<void(boost::asio::yiel
 	auto ctime (Utility::GetTime());
 
 	asio::post(m_Strand, [this, callback, priority, ctime]() {
-		m_Queues.Writes[priority].emplace(WriteQueueItem{nullptr, nullptr, nullptr, nullptr, callback, ctime});
+		m_Queues.Writes[priority].emplace(WriteQueueItem{nullptr, nullptr, nullptr, nullptr, callback, ctime, QueryAffects{}});
 		m_QueuedWrites.Set();
 	});
 }

tools/mkclass/class_lexer.ll

@@ -26,8 +26,8 @@ do {							\
 } while (0)
 
 struct lex_buf {
-	char *buf;
-	size_t size;
+	char *buf = NULL;
+	size_t size = 0;
 };
 
 static void lb_init(lex_buf *lb)