diff --git a/alib2data/src/graph/common/Node.cpp b/alib2data/src/graph/common/Node.cpp
index c95656d79ec8f044de3725ce2710e4599e9d374b..aad83a77b63d6a630b0488f9800a792d150cbb54 100644
--- a/alib2data/src/graph/common/Node.cpp
+++ b/alib2data/src/graph/common/Node.cpp
@@ -55,7 +55,7 @@ Node &Node::operator=(const Node &other)
 	return *this;
 }
 
-Node &Node::operator=(Node &&other)
+Node &Node::operator=(Node &&other) noexcept
 {
 	std::swap(name, other.name);
 	return *this;
diff --git a/alib2data/src/graph/common/Node.h b/alib2data/src/graph/common/Node.h
index 3016a938fa4679334262ea1a1d7fbde9cce8b2ce..cc52dc5f475f01c139549ad6b236ceeffdc00423 100644
--- a/alib2data/src/graph/common/Node.h
+++ b/alib2data/src/graph/common/Node.h
@@ -20,7 +20,7 @@ public:
 	Node(const Node &other);
 	Node(Node &&other) noexcept;
 	Node &operator=(const Node &other);
-	Node &operator=(Node &&other);
+	Node &operator=(Node &&other) noexcept;
 
 	GraphElement *clone() const;
 	GraphElement *plunder() &&;
diff --git a/alib2data/src/graph/directed/DirectedEdge.cpp b/alib2data/src/graph/directed/DirectedEdge.cpp
index a05cbce7b739a837637dacfc3ced9509e370c252..67eb6039abf93447281985e7c404bdac379b6c76 100644
--- a/alib2data/src/graph/directed/DirectedEdge.cpp
+++ b/alib2data/src/graph/directed/DirectedEdge.cpp
@@ -103,7 +103,7 @@ DirectedEdge &DirectedEdge::operator=(const DirectedEdge &other)
 	return *this;
 }
 
-DirectedEdge &DirectedEdge::operator=(DirectedEdge &&other)
+DirectedEdge &DirectedEdge::operator=(DirectedEdge &&other) noexcept
 {
 	std::swap(from, other.from);
 	std::swap(to, other.to);
diff --git a/alib2data/src/graph/directed/DirectedEdge.h b/alib2data/src/graph/directed/DirectedEdge.h
index 75b1a346023293d4af09c6d9d66756aeccf9b7dd..fecb0a71f77032e0969ffe17eae0ea7886c9e86d 100644
--- a/alib2data/src/graph/directed/DirectedEdge.h
+++ b/alib2data/src/graph/directed/DirectedEdge.h
@@ -25,7 +25,7 @@ public:
 	DirectedEdge(const DirectedEdge &other);
 	DirectedEdge(DirectedEdge &&other) noexcept;
 	DirectedEdge &operator=(const DirectedEdge &other);
-	DirectedEdge &operator=(DirectedEdge &&other);
+	DirectedEdge &operator=(DirectedEdge &&other) noexcept;
 
 	GraphElement *clone() const;
 	GraphElement *plunder() &&;
diff --git a/alib2data/src/graph/undirected/UndirectedEdge.cpp b/alib2data/src/graph/undirected/UndirectedEdge.cpp
index 79327f8dd22c76d1805e45f482a8006f28f4886a..ac1985327308c4c77e0b2664ab88c353985c690e 100644
--- a/alib2data/src/graph/undirected/UndirectedEdge.cpp
+++ b/alib2data/src/graph/undirected/UndirectedEdge.cpp
@@ -103,7 +103,7 @@ UndirectedEdge &UndirectedEdge::operator=(const UndirectedEdge &other)
 	return *this;
 }
 
-UndirectedEdge &UndirectedEdge::operator=(UndirectedEdge &&other)
+UndirectedEdge &UndirectedEdge::operator=(UndirectedEdge &&other) noexcept
 {
 	std::swap(first, other.first);
 	std::swap(second, other.second);
diff --git a/alib2data/src/graph/undirected/UndirectedEdge.h b/alib2data/src/graph/undirected/UndirectedEdge.h
index b8c1b846ab1c178577b53fbb163a61b09756e055..e0757e632774bef50b817977f6e2f2b646417911 100644
--- a/alib2data/src/graph/undirected/UndirectedEdge.h
+++ b/alib2data/src/graph/undirected/UndirectedEdge.h
@@ -25,7 +25,7 @@ public:
 	UndirectedEdge(const UndirectedEdge &other);
 	UndirectedEdge(UndirectedEdge &&other) noexcept;
 	UndirectedEdge &operator=(const UndirectedEdge &other);
-	UndirectedEdge &operator=(UndirectedEdge &&other);
+	UndirectedEdge &operator=(UndirectedEdge &&other) noexcept;
 
 	GraphElement *clone() const;
 	GraphElement *plunder() &&;
diff --git a/alib2data/src/regexp/formal/FormalRegExpAlternation.cpp b/alib2data/src/regexp/formal/FormalRegExpAlternation.cpp
index 622910ba0a4755857346ef1fb9d8e1a6132c6558..1a8b8588e351c8d4cb723d100d4ffdd7de2a8dd6 100644
--- a/alib2data/src/regexp/formal/FormalRegExpAlternation.cpp
+++ b/alib2data/src/regexp/formal/FormalRegExpAlternation.cpp
@@ -43,7 +43,7 @@ FormalRegExpAlternation& FormalRegExpAlternation::operator=(const FormalRegExpAl
 	return *this;
 }
 
-FormalRegExpAlternation& FormalRegExpAlternation::operator=(FormalRegExpAlternation&& other) {
+FormalRegExpAlternation& FormalRegExpAlternation::operator=(FormalRegExpAlternation&& other) noexcept {
 	std::swap(this->left, other.left);
 	std::swap(this->right, other.right);
 
diff --git a/alib2data/src/regexp/formal/FormalRegExpAlternation.h b/alib2data/src/regexp/formal/FormalRegExpAlternation.h
index d2a90b6ecb3ec856afe6dff52cb3d1ae8ac3ab15..2d6e1d20d5261dbbe9d7f4e7b618f819b3c4ebf5 100644
--- a/alib2data/src/regexp/formal/FormalRegExpAlternation.h
+++ b/alib2data/src/regexp/formal/FormalRegExpAlternation.h
@@ -29,7 +29,7 @@ protected:
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* cloneAsUnbounded() const;
-	
+
 	FormalRegExpElement* left;
 	FormalRegExpElement* right;
 
@@ -37,32 +37,32 @@ protected:
 	 * @copydoc FormalRegExpElement::testSymbol() const
 	 */
 	virtual bool testSymbol( const alphabet::Symbol & symbol ) const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const FormalRegExp * regexp );
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::computeMinimalAlphabet()
 	 */
 	virtual void computeMinimalAlphabet( std::set<alphabet::Symbol>& alphabet ) const;
-	
+
 public:
 	explicit FormalRegExpAlternation(FormalRegExpElement&& left, FormalRegExpElement&& right);
 	explicit FormalRegExpAlternation(const FormalRegExpElement& left, const FormalRegExpElement& right);
-	
+
 	FormalRegExpAlternation(const FormalRegExpAlternation& other);
 	FormalRegExpAlternation(FormalRegExpAlternation&& other) noexcept;
 	FormalRegExpAlternation& operator =(const FormalRegExpAlternation& other);
-	FormalRegExpAlternation& operator =(FormalRegExpAlternation&& other);
+	FormalRegExpAlternation& operator =(FormalRegExpAlternation&& other) noexcept;
 
 	virtual ~FormalRegExpAlternation() noexcept;
 	/**
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual FormalRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::plunder() const
 	 */
@@ -73,7 +73,7 @@ public:
 	 */
 	const FormalRegExpElement & getLeftElement() const;
 	const FormalRegExpElement & getRightElement() const;
-	
+
 	/**
 	 * @return elements
 	 */
@@ -97,7 +97,7 @@ public:
 	}
 
 	virtual int compare(const FormalRegExpAlternation&) const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::operator>>() const
 	 */
diff --git a/alib2data/src/regexp/formal/FormalRegExpConcatenation.cpp b/alib2data/src/regexp/formal/FormalRegExpConcatenation.cpp
index 9dee89ae1e92ea9760ab9e8c1a885a8d0deb05c0..3776a3a094d25078e7d7935bddad0121e3157cd1 100644
--- a/alib2data/src/regexp/formal/FormalRegExpConcatenation.cpp
+++ b/alib2data/src/regexp/formal/FormalRegExpConcatenation.cpp
@@ -38,17 +38,17 @@ FormalRegExpConcatenation& FormalRegExpConcatenation::operator=(const FormalRegE
 	}
 
 	*this = FormalRegExpConcatenation(other);
-	
+
 	return *this;
 }
 
-FormalRegExpConcatenation& FormalRegExpConcatenation::operator=(FormalRegExpConcatenation&& other) {
+FormalRegExpConcatenation& FormalRegExpConcatenation::operator=(FormalRegExpConcatenation&& other) noexcept {
 	std::swap(this->left, other.left);
 	std::swap(this->right, other.right);
 
 	this->left->attachRegExp(this->parentRegExp);
 	this->right->attachRegExp(this->parentRegExp);
-	
+
 	return *this;
 }
 
@@ -111,11 +111,11 @@ FormalRegExpElement* FormalRegExpConcatenation::clone() const {
 
 UnboundedRegExpElement* FormalRegExpConcatenation::cloneAsUnbounded() const {
 	UnboundedRegExpConcatenation* res = new UnboundedRegExpConcatenation();
-	
+
 	UnboundedRegExpElement* leftTmp = left->cloneAsUnbounded();
 	res->appendElement(std::move(*leftTmp));
 	delete leftTmp;
-	
+
 	UnboundedRegExpElement* rightTmp = right->cloneAsUnbounded();
 	res->appendElement(std::move(*rightTmp));
 	delete rightTmp;
@@ -148,7 +148,7 @@ bool FormalRegExpConcatenation::testSymbol( const alphabet::Symbol & symbol ) co
 
 bool FormalRegExpConcatenation::attachRegExp(const FormalRegExp * regexp ) {
 	if(this->parentRegExp == regexp) return true;
-	
+
 	this->parentRegExp = regexp;
 	if(!left->attachRegExp(regexp)) return false;
 	if(!right->attachRegExp(regexp)) return false;
diff --git a/alib2data/src/regexp/formal/FormalRegExpConcatenation.h b/alib2data/src/regexp/formal/FormalRegExpConcatenation.h
index c64d9c9d8868da7c3df9dacbd6f6c7c123a6eb13..16be1ad50cccc92f7596013d00bfe81d4cc8bb12 100644
--- a/alib2data/src/regexp/formal/FormalRegExpConcatenation.h
+++ b/alib2data/src/regexp/formal/FormalRegExpConcatenation.h
@@ -30,20 +30,20 @@ protected:
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* cloneAsUnbounded() const;
-	
+
 	FormalRegExpElement* left;
 	FormalRegExpElement* right;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::testSymbol() const
 	 */
 	virtual bool testSymbol( const alphabet::Symbol & symbol ) const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const FormalRegExp * regexp );
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::computeMinimalAlphabet()
 	 */
@@ -52,18 +52,18 @@ protected:
 public:
 	explicit FormalRegExpConcatenation(FormalRegExpElement&& left, FormalRegExpElement&& right);
 	explicit FormalRegExpConcatenation(const FormalRegExpElement& left, const FormalRegExpElement& right);
-	
+
 	FormalRegExpConcatenation(const FormalRegExpConcatenation& other);
 	FormalRegExpConcatenation(FormalRegExpConcatenation&& other) noexcept;
 	FormalRegExpConcatenation& operator =(const FormalRegExpConcatenation& other);
-	FormalRegExpConcatenation& operator =(FormalRegExpConcatenation&& other);
+	FormalRegExpConcatenation& operator =(FormalRegExpConcatenation&& other) noexcept;
 	virtual ~FormalRegExpConcatenation() noexcept;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual FormalRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::plunder() const
 	 */
@@ -86,7 +86,7 @@ public:
 	 */
 	void setLeftElement(const FormalRegExpElement& element);
 	void setLeftElement(FormalRegExpElement&& element);
-	
+
 	void setRightElement(const FormalRegExpElement& element);
 	void setRightElement(FormalRegExpElement&& element);
 
diff --git a/alib2data/src/regexp/formal/FormalRegExpElement.h b/alib2data/src/regexp/formal/FormalRegExpElement.h
index 30ff34d1c4615df7dd310934ff50111f7a29d1f3..4a1e92393521be730228dfa6609736de034320c0 100644
--- a/alib2data/src/regexp/formal/FormalRegExpElement.h
+++ b/alib2data/src/regexp/formal/FormalRegExpElement.h
@@ -59,7 +59,7 @@ protected:
 	 * @return true if symbols used in regexp element are in the regexp's alphabet
 	 */
 	virtual bool attachRegExp ( const FormalRegExp * regexp ) = 0;
-	
+
 	/**
 	 * Traverses the regexp tree computing minimal alphabet needed by regexp
 	 *
@@ -67,7 +67,7 @@ protected:
 	 * @return true if symbol is used by the element and its successor
 	 */
 	virtual void computeMinimalAlphabet( std::set<alphabet::Symbol>& alphabet ) const = 0;
-	
+
 public:
 	explicit FormalRegExpElement();
 
@@ -78,7 +78,7 @@ public:
 	virtual UnboundedRegExpElement* cloneAsUnbounded() const = 0;
 
 	friend class FormalRegExp;
-	
+
 	friend class FormalRegExpAlternation;
 	friend class FormalRegExpConcatenation;
 	friend class FormalRegExpIteration;
diff --git a/alib2data/src/regexp/formal/FormalRegExpEmpty.cpp b/alib2data/src/regexp/formal/FormalRegExpEmpty.cpp
index e9762b674e467bbd684611dd6a7402e2926cc6eb..71b44316fdb0e1fe460ce01392e6ca8a2ed09360 100644
--- a/alib2data/src/regexp/formal/FormalRegExpEmpty.cpp
+++ b/alib2data/src/regexp/formal/FormalRegExpEmpty.cpp
@@ -11,25 +11,25 @@
 namespace regexp {
 
 FormalRegExpEmpty::FormalRegExpEmpty() {
-  // so that default constructor is available
+	// so that default constructor is available
 }
 
 FormalRegExpEmpty::FormalRegExpEmpty(const FormalRegExpEmpty&) {
-  // so that copy constructor is available
+	// so that copy constructor is available
 }
 
 FormalRegExpEmpty::FormalRegExpEmpty(FormalRegExpEmpty&&) noexcept {
-  this->attachRegExp(NULL);
+	this->attachRegExp(NULL);
 }
 
 FormalRegExpEmpty& FormalRegExpEmpty::operator =(const FormalRegExpEmpty&) {
-  //this is actually different than default implementation
-  return *this;
+	// this is actually different than default implementation
+	return *this;
 }
 
 FormalRegExpEmpty& FormalRegExpEmpty::operator =(FormalRegExpEmpty&&) noexcept {
-  //this is actually different than default implementation
-  return *this;
+	// this is actually different than default implementation
+	return *this;
 }
 
 FormalRegExpElement* FormalRegExpEmpty::clone() const {
diff --git a/alib2data/src/regexp/formal/FormalRegExpEmpty.h b/alib2data/src/regexp/formal/FormalRegExpEmpty.h
index 62d91438d7a0fcd1fa8337bcde2ac0156a656bc4..617a9876b4a33ce0adfac457b9012cbb538cfb33 100644
--- a/alib2data/src/regexp/formal/FormalRegExpEmpty.h
+++ b/alib2data/src/regexp/formal/FormalRegExpEmpty.h
@@ -22,17 +22,17 @@ protected:
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* cloneAsUnbounded() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::testSymbol() const
 	 */
 	virtual bool testSymbol( const alphabet::Symbol & symbol ) const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const FormalRegExp * regexp );
-	
+
 	/**
 	 * @copydoc RegExpElement::computeMinimalAlphabet()
 	 */
@@ -49,7 +49,7 @@ public:
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual FormalRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::plunder() const
 	 */
@@ -60,7 +60,7 @@ public:
 	}
 
 	virtual int compare(const FormalRegExpEmpty&) const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::operator>>() const
 	 */
diff --git a/alib2data/src/regexp/formal/FormalRegExpEpsilon.cpp b/alib2data/src/regexp/formal/FormalRegExpEpsilon.cpp
index 63f85748df44338b34ea800f8497bac214bd2052..7b55e73c9cb847e4abc8ff3d0198457dbaa49d3e 100644
--- a/alib2data/src/regexp/formal/FormalRegExpEpsilon.cpp
+++ b/alib2data/src/regexp/formal/FormalRegExpEpsilon.cpp
@@ -12,11 +12,11 @@
 namespace regexp {
 
 FormalRegExpEpsilon::FormalRegExpEpsilon() {
-  // so that default constructor is available
+	// so that default constructor is available
 }
 
 FormalRegExpEpsilon::FormalRegExpEpsilon(const FormalRegExpEpsilon&) {
-  // so that copy constructor is available
+	// so that copy constructor is available
 }
 
 FormalRegExpEpsilon::FormalRegExpEpsilon(FormalRegExpEpsilon&&) noexcept {
@@ -24,13 +24,13 @@ FormalRegExpEpsilon::FormalRegExpEpsilon(FormalRegExpEpsilon&&) noexcept {
 }
 
 FormalRegExpEpsilon& FormalRegExpEpsilon::operator =(const FormalRegExpEpsilon&) {
-  //this is actually different than default implementation
-  return *this;
+	// this is actually different than default implementation
+	return *this;
 }
 
 FormalRegExpEpsilon& FormalRegExpEpsilon::operator =(FormalRegExpEpsilon&&) noexcept {
-  //this is actually different than default implementation
-  return *this;
+	// this is actually different than default implementation
+	return *this;
 }
 
 FormalRegExpElement* FormalRegExpEpsilon::clone() const {
@@ -46,7 +46,7 @@ UnboundedRegExpElement* FormalRegExpEpsilon::cloneAsUnbounded() const {
 }
 
 int FormalRegExpEpsilon::compare(const FormalRegExpEpsilon&) const {
-	  return 0;
+	return 0;
 }
 
 void FormalRegExpEpsilon::operator>>(std::ostream& out) const {
diff --git a/alib2data/src/regexp/formal/FormalRegExpEpsilon.h b/alib2data/src/regexp/formal/FormalRegExpEpsilon.h
index bc91013adc09ae485ad4998dba1bdfa10d521e16..a4beae2722b8f17b6474294981b7c9843d6964e7 100644
--- a/alib2data/src/regexp/formal/FormalRegExpEpsilon.h
+++ b/alib2data/src/regexp/formal/FormalRegExpEpsilon.h
@@ -22,17 +22,17 @@ protected:
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* cloneAsUnbounded() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::testSymbol() const
 	 */
 	virtual bool testSymbol( const alphabet::Symbol & symbol ) const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const FormalRegExp * regexp );
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::computeMinimalAlphabet()
 	 */
@@ -50,18 +50,18 @@ public:
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual FormalRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::plunder() const
 	 */
 	virtual FormalRegExpElement* plunder() &&;
-	
+
 	virtual int compare(const FormalRegExpElement& other) const {
 		return -other.compare(*this);
 	}
 
 	virtual int compare(const FormalRegExpEpsilon&) const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::operator>>() const
 	 */
diff --git a/alib2data/src/regexp/formal/FormalRegExpIteration.cpp b/alib2data/src/regexp/formal/FormalRegExpIteration.cpp
index 1eef7c48589b27c6f806120393105d4181a36c35..a769b4fd155ad82867481784672204211555d6bd 100644
--- a/alib2data/src/regexp/formal/FormalRegExpIteration.cpp
+++ b/alib2data/src/regexp/formal/FormalRegExpIteration.cpp
@@ -41,10 +41,10 @@ FormalRegExpIteration& FormalRegExpIteration::operator=(const FormalRegExpIterat
 	return *this;
 }
 
-FormalRegExpIteration& FormalRegExpIteration::operator=(FormalRegExpIteration&& other) {
+FormalRegExpIteration& FormalRegExpIteration::operator=(FormalRegExpIteration&& other) noexcept {
 	std::swap(this->element, other.element);
 	std::swap(this->parentRegExp, other.parentRegExp);
-	
+
 	this->attachRegExp(other.parentRegExp);
 
 	return *this;
diff --git a/alib2data/src/regexp/formal/FormalRegExpIteration.h b/alib2data/src/regexp/formal/FormalRegExpIteration.h
index 6a1e1d42f6577724829d7f92b59fbb5caa5a3490..25ff175a7bf59c3807c8e5e79b6045923b6e2031 100644
--- a/alib2data/src/regexp/formal/FormalRegExpIteration.h
+++ b/alib2data/src/regexp/formal/FormalRegExpIteration.h
@@ -31,7 +31,7 @@ protected:
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* cloneAsUnbounded() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::testSymbol() const
 	 */
@@ -41,27 +41,27 @@ protected:
 	 * @copydoc FormalRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const FormalRegExp * regexp );
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::computeMinimalAlphabet()
 	 */
 	virtual void computeMinimalAlphabet( std::set<alphabet::Symbol>& alphabet ) const;
-	
+
 public:
 	explicit FormalRegExpIteration(FormalRegExpElement&&);
 	explicit FormalRegExpIteration(const FormalRegExpElement&);
-	
+
 	FormalRegExpIteration(const FormalRegExpIteration& other);
 	FormalRegExpIteration(FormalRegExpIteration&& other) noexcept;
 	FormalRegExpIteration& operator =(const FormalRegExpIteration& other);
-	FormalRegExpIteration& operator =(FormalRegExpIteration&& other);
+	FormalRegExpIteration& operator =(FormalRegExpIteration&& other) noexcept;
 	virtual ~FormalRegExpIteration() noexcept;
 
 	/**
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual FormalRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::plunder() const
 	 */
@@ -72,17 +72,17 @@ public:
 	 * @return element
 	 */
 	const FormalRegExpElement & getElement() const;
-	
+
 	/**
 	 * @return element
 	 */
 	FormalRegExpElement & getElement();
-	
+
 	/**
 	 * @param element to iterate
 	 */
 	void setElement(const FormalRegExpElement& element);
-	
+
 	void setElement(FormalRegExpElement&& element);
 
 	virtual int compare(const FormalRegExpElement& other) const {
diff --git a/alib2data/src/regexp/formal/FormalRegExpSymbol.cpp b/alib2data/src/regexp/formal/FormalRegExpSymbol.cpp
index e2c1b5547471c139c88e86d76c5caa80cd0763e7..fb3df17af388dfe96d5192f6da35dbd91e696104 100644
--- a/alib2data/src/regexp/formal/FormalRegExpSymbol.cpp
+++ b/alib2data/src/regexp/formal/FormalRegExpSymbol.cpp
@@ -41,12 +41,12 @@ FormalRegExpSymbol& FormalRegExpSymbol::operator=(const FormalRegExpSymbol& othe
 	return *this;
 }
 
-FormalRegExpSymbol& FormalRegExpSymbol::operator=(FormalRegExpSymbol&& other) {
+FormalRegExpSymbol& FormalRegExpSymbol::operator=(FormalRegExpSymbol&& other) noexcept {
 	std::swap(this->symbol, other.symbol);
 	std::swap(this->parentRegExp, other.parentRegExp);
-	
+
 	this->attachRegExp(other.parentRegExp);
-	
+
 	return *this;
 }
 
diff --git a/alib2data/src/regexp/formal/FormalRegExpSymbol.h b/alib2data/src/regexp/formal/FormalRegExpSymbol.h
index 3a7cd16d79b7c5f64a1c80d616096ab44e96af09..bfab54dde60cba8d65eeac4207591fe8c32c0eda 100644
--- a/alib2data/src/regexp/formal/FormalRegExpSymbol.h
+++ b/alib2data/src/regexp/formal/FormalRegExpSymbol.h
@@ -25,17 +25,17 @@ protected:
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* cloneAsUnbounded() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::testSymbol() const
 	 */
 	virtual bool testSymbol( const alphabet::Symbol & symbol ) const;
-		
+
 	/**
 	 * @copydoc FormalRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const FormalRegExp * regexp );
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::computeMinimalAlphabet()
 	 */
@@ -47,23 +47,23 @@ public:
 
 	explicit FormalRegExpSymbol(const alphabet::Symbol& symbol);
 	explicit FormalRegExpSymbol(alphabet::Symbol&& symbol);
-	
+
 	FormalRegExpSymbol(const FormalRegExpSymbol& other);
 	FormalRegExpSymbol(FormalRegExpSymbol&& other) noexcept;
 	FormalRegExpSymbol& operator=(const FormalRegExpSymbol& other);
-	FormalRegExpSymbol& operator=(FormalRegExpSymbol&& other);
+	FormalRegExpSymbol& operator=(FormalRegExpSymbol&& other) noexcept;
 
 	/**
 	 * @copydoc FormalRegExpElement::clone() const
 	 */
 	virtual FormalRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::plunder() const
 	 */
 	virtual FormalRegExpElement* plunder() &&;
 
-	
+
 	bool operator==(const alphabet::Symbol&) const;
 	friend bool operator==(const alphabet::Symbol&, const FormalRegExpSymbol&);
 
@@ -72,12 +72,12 @@ public:
 	}
 
 	virtual int compare(const FormalRegExpSymbol&) const;
-	
+
 	/**
 	 * @copydoc FormalRegExpElement::operator>>() const
 	 */
 	virtual void operator>>(std::ostream& out) const;
-	
+
 	/**
 	 * Returns the string representation of RegExp Symbol.
 	 */
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpAlternation.cpp b/alib2data/src/regexp/unbounded/UnboundedRegExpAlternation.cpp
index 1df63332c4bcb26e854d83660faa5ca981da25f1..2f418d4bcfdbeec274539a5ddefc05580bac669f 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpAlternation.cpp
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpAlternation.cpp
@@ -38,12 +38,12 @@ UnboundedRegExpAlternation& UnboundedRegExpAlternation::operator=(const Unbounde
 	return *this;
 }
 
-UnboundedRegExpAlternation& UnboundedRegExpAlternation::operator=(UnboundedRegExpAlternation&& other) {
+UnboundedRegExpAlternation& UnboundedRegExpAlternation::operator=(UnboundedRegExpAlternation&& other) noexcept {
 	std::swap(this->elements, other.elements);
 	std::swap(this->parentRegExp, other.parentRegExp); // this->parentRegExp is stored within othes.parentRegExp and it is reattached on the next line
-	
+
 	this->attachRegExp(other.parentRegExp);
-	
+
 	return *this;
 }
 
@@ -139,7 +139,7 @@ bool UnboundedRegExpAlternation::testSymbol( const alphabet::Symbol & symbol ) c
 
 bool UnboundedRegExpAlternation::attachRegExp(const UnboundedRegExp * regexp ) {
 	if(this->parentRegExp == regexp) return true;
-	
+
 	this->parentRegExp = regexp;
 	for(const auto& child : this->elements)
 		if(!child->attachRegExp(regexp)) return false;
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpAlternation.h b/alib2data/src/regexp/unbounded/UnboundedRegExpAlternation.h
index c250ab5247a2b9d5a07b713c64e922fcfb368de4..1e01e6c0f13b0662bdc91d30592340dd4c53bbfb 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpAlternation.h
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpAlternation.h
@@ -53,7 +53,7 @@ public:
 	UnboundedRegExpAlternation(const UnboundedRegExpAlternation& other);
 	UnboundedRegExpAlternation(UnboundedRegExpAlternation&& other) noexcept;
 	UnboundedRegExpAlternation& operator =(const UnboundedRegExpAlternation& other);
-	UnboundedRegExpAlternation& operator =(UnboundedRegExpAlternation&& other);
+	UnboundedRegExpAlternation& operator =(UnboundedRegExpAlternation&& other) noexcept;
 	virtual ~UnboundedRegExpAlternation() noexcept;
 
 	/**
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpConcatenation.cpp b/alib2data/src/regexp/unbounded/UnboundedRegExpConcatenation.cpp
index 334d1c1e8dedea952c668d005bc602e8089da161..b12581b6b47427f6e4a1dd733a0528b10bebf9f5 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpConcatenation.cpp
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpConcatenation.cpp
@@ -37,7 +37,7 @@ UnboundedRegExpConcatenation& UnboundedRegExpConcatenation::operator=(const Unbo
 	return *this;
 }
 
-UnboundedRegExpConcatenation& UnboundedRegExpConcatenation::operator=(UnboundedRegExpConcatenation&& other) {
+UnboundedRegExpConcatenation& UnboundedRegExpConcatenation::operator=(UnboundedRegExpConcatenation&& other) noexcept {
 	std::swap(this->elements, other.elements);
 	std::swap(this->parentRegExp, other.parentRegExp); // this->parentRegExp is stored within othes.parentRegExp and it is reattached on the next line
 
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpConcatenation.h b/alib2data/src/regexp/unbounded/UnboundedRegExpConcatenation.h
index b3b7031ad2fb7a491f1066f084d9f4baaa4c6793..957bc2fa23b8b4447fbb0b299886eb5cd0faee96 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpConcatenation.h
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpConcatenation.h
@@ -32,17 +32,17 @@ protected:
 
 
 	std::vector<UnboundedRegExpElement*> elements;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::testSymbol() const
 	 */
 	virtual bool testSymbol( const alphabet::Symbol & symbol ) const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const UnboundedRegExp * regexp );
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::computeMinimalAlphabet()
 	 */
@@ -50,11 +50,11 @@ protected:
 
 public:
 	explicit UnboundedRegExpConcatenation();
-	
+
 	UnboundedRegExpConcatenation(const UnboundedRegExpConcatenation& other);
 	UnboundedRegExpConcatenation(UnboundedRegExpConcatenation&& other) noexcept;
 	UnboundedRegExpConcatenation& operator =(const UnboundedRegExpConcatenation& other);
-	UnboundedRegExpConcatenation& operator =(UnboundedRegExpConcatenation&& other);
+	UnboundedRegExpConcatenation& operator =(UnboundedRegExpConcatenation&& other) noexcept;
 	virtual ~UnboundedRegExpConcatenation() noexcept;
 
 	/**
@@ -67,7 +67,7 @@ public:
 	 */
 	virtual UnboundedRegExpElement* plunder() &&;
 
-	
+
 	/**
 	 * @return elements
 	 */
@@ -82,7 +82,7 @@ public:
 	 * @param element to append
 	 */
 	void appendElement(const UnboundedRegExpElement& element);
-	
+
 	void appendElement(UnboundedRegExpElement&& element);
 
 	virtual int compare(const UnboundedRegExpElement& other) const {
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpElement.h b/alib2data/src/regexp/unbounded/UnboundedRegExpElement.h
index b057c8d0a2caf23d7b567fc24c00441ac1acc6f4..684a2e35bd8559c6b94dd15d03da8fc5eca74f5d 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpElement.h
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpElement.h
@@ -59,7 +59,7 @@ protected:
 	 * @return true if symbols used in regexp element are in the regexp's alphabet
 	 */
 	virtual bool attachRegExp ( const UnboundedRegExp * regexp ) = 0;
-	
+
 	/**
 	 * Traverses the regexp tree computing minimal alphabet needed by regexp
 	 *
@@ -67,10 +67,10 @@ protected:
 	 * @return true if symbol is used by the element and its successor
 	 */
 	virtual void computeMinimalAlphabet( std::set<alphabet::Symbol>& alphabet ) const = 0;
-	
+
 public:
 	explicit UnboundedRegExpElement();
-	
+
 	/**
 	 * Creates copy of the element.
 	 * @return copy of the element
@@ -78,7 +78,7 @@ public:
 	virtual FormalRegExpElement* cloneAsFormal() const = 0;
 
 	friend class UnboundedRegExp;
-	
+
 	friend class UnboundedRegExpAlternation;
 	friend class UnboundedRegExpConcatenation;
 	friend class UnboundedRegExpIteration;
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpEmpty.cpp b/alib2data/src/regexp/unbounded/UnboundedRegExpEmpty.cpp
index ca5c670c85c7aaadbc9c81376b41ddf31d8e4d1d..dee5c501cdb0c24b518f3aaa891d8f1667b83103 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpEmpty.cpp
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpEmpty.cpp
@@ -12,25 +12,25 @@
 namespace regexp {
 
 UnboundedRegExpEmpty::UnboundedRegExpEmpty() {
-  // so that default constructor is available
+	// so that default constructor is available
 }
 
 UnboundedRegExpEmpty::UnboundedRegExpEmpty(const UnboundedRegExpEmpty&) {
-  // so that copy constructor is available
+	// so that copy constructor is available
 }
 
 UnboundedRegExpEmpty::UnboundedRegExpEmpty(UnboundedRegExpEmpty&&) noexcept {
-  this->attachRegExp(NULL);
+	this->attachRegExp(NULL);
 }
 
 UnboundedRegExpEmpty& UnboundedRegExpEmpty::operator =(const UnboundedRegExpEmpty&) {
-  //this is actually different than default implementation
-  return *this;
+	// this is actually different than default implementation
+	return *this;
 }
 
 UnboundedRegExpEmpty& UnboundedRegExpEmpty::operator =(UnboundedRegExpEmpty&&) noexcept {
-  //this is actually different than default implementation
-  return *this;
+	// this is actually different than default implementation
+	return *this;
 }
 
 UnboundedRegExpElement* UnboundedRegExpEmpty::clone() const {
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpEmpty.h b/alib2data/src/regexp/unbounded/UnboundedRegExpEmpty.h
index eee6cccbe171767795de1bbfe6b4bda42490bd0c..37135c3ce55c587c5d0d07ebb4c09372d23e16ba 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpEmpty.h
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpEmpty.h
@@ -26,12 +26,12 @@ protected:
 	 * @copydoc UnboundedRegExpElement::testSymbol() const
 	 */
 	virtual bool testSymbol( const alphabet::Symbol & symbol ) const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const UnboundedRegExp * regexp );
-	
+
 	/**
 	 * @copydoc RegExpElement::computeMinimalAlphabet()
 	 */
@@ -48,7 +48,7 @@ public:
 	 * @copydoc UnboundedRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::plunder() const
 	 */
@@ -59,7 +59,7 @@ public:
 	}
 
 	virtual int compare(const UnboundedRegExpEmpty&) const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::operator>>() const
 	 */
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpEpsilon.cpp b/alib2data/src/regexp/unbounded/UnboundedRegExpEpsilon.cpp
index 964d1dd1d91aa9add2ef1dc385e5aefd1ec27d5b..0ecd629c8c31568484d792d83b75869e7cc37193 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpEpsilon.cpp
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpEpsilon.cpp
@@ -12,11 +12,11 @@
 namespace regexp {
 
 UnboundedRegExpEpsilon::UnboundedRegExpEpsilon() {
-  // so that default constructor is available
+	// so that default constructor is available
 }
 
 UnboundedRegExpEpsilon::UnboundedRegExpEpsilon(const UnboundedRegExpEpsilon&) {
-  // so that copy constructor is available
+	// so that copy constructor is available
 }
 
 UnboundedRegExpEpsilon::UnboundedRegExpEpsilon(UnboundedRegExpEpsilon&&) noexcept {
@@ -24,13 +24,13 @@ UnboundedRegExpEpsilon::UnboundedRegExpEpsilon(UnboundedRegExpEpsilon&&) noexcep
 }
 
 UnboundedRegExpEpsilon& UnboundedRegExpEpsilon::operator =(const UnboundedRegExpEpsilon&) {
-  //this is actually different than default implementation
-  return *this;
+	// this is actually different than default implementation
+	return *this;
 }
 
 UnboundedRegExpEpsilon& UnboundedRegExpEpsilon::operator =(UnboundedRegExpEpsilon&&) noexcept {
-  //this is actually different than default implementation
-  return *this;
+	// this is actually different than default implementation
+	return *this;
 }
 
 UnboundedRegExpElement* UnboundedRegExpEpsilon::clone() const {
@@ -46,7 +46,7 @@ FormalRegExpElement* UnboundedRegExpEpsilon::cloneAsFormal() const {
 }
 
 int UnboundedRegExpEpsilon::compare(const UnboundedRegExpEpsilon&) const {
-	  return 0;
+	return 0;
 }
 
 void UnboundedRegExpEpsilon::operator>>(std::ostream& out) const {
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpEpsilon.h b/alib2data/src/regexp/unbounded/UnboundedRegExpEpsilon.h
index fe478f502e1e54e06bc4470a7fab4669f3a85e63..66e8501fffd78e4b5e42930165dd63666ed4abaa 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpEpsilon.h
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpEpsilon.h
@@ -26,12 +26,12 @@ protected:
 	 * @copydoc UnboundedRegExpElement::testSymbol() const
 	 */
 	virtual bool testSymbol( const alphabet::Symbol & symbol ) const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const UnboundedRegExp * regexp );
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::computeMinimalAlphabet()
 	 */
@@ -49,7 +49,7 @@ public:
 	 * @copydoc UnboundedRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::plunder() const
 	 */
@@ -60,7 +60,7 @@ public:
 	}
 
 	virtual int compare(const UnboundedRegExpEpsilon&) const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::operator>>() const
 	 */
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpIteration.cpp b/alib2data/src/regexp/unbounded/UnboundedRegExpIteration.cpp
index 2b139cabb640da88325b7ebd7df3f5b2b9369d33..02a185416e3c29667c690dd87222b8e807ea8471 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpIteration.cpp
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpIteration.cpp
@@ -41,10 +41,10 @@ UnboundedRegExpIteration& UnboundedRegExpIteration::operator=(const UnboundedReg
 	return *this;
 }
 
-UnboundedRegExpIteration& UnboundedRegExpIteration::operator=(UnboundedRegExpIteration&& other) {
+UnboundedRegExpIteration& UnboundedRegExpIteration::operator=(UnboundedRegExpIteration&& other) noexcept {
 	std::swap(this->element, other.element);
 	std::swap(this->parentRegExp, other.parentRegExp);
-	
+
 	this->attachRegExp(other.parentRegExp);
 
 	return *this;
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpIteration.h b/alib2data/src/regexp/unbounded/UnboundedRegExpIteration.h
index 3fd2cff71210397ec90400264bdf3cf7359724ea..f24f90720bf7308f7fe3f8572b87a10b8d7ebe97 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpIteration.h
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpIteration.h
@@ -41,27 +41,27 @@ protected:
 	 * @copydoc UnboundedRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const UnboundedRegExp * regexp );
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::computeMinimalAlphabet()
 	 */
 	virtual void computeMinimalAlphabet( std::set<alphabet::Symbol>& alphabet ) const;
-	
+
 public:
 	explicit UnboundedRegExpIteration(UnboundedRegExpElement&&);
 	explicit UnboundedRegExpIteration(const UnboundedRegExpElement&);
-	
+
 	UnboundedRegExpIteration(const UnboundedRegExpIteration& other);
 	UnboundedRegExpIteration(UnboundedRegExpIteration&& other) noexcept;
 	UnboundedRegExpIteration& operator =(const UnboundedRegExpIteration& other);
-	UnboundedRegExpIteration& operator =(UnboundedRegExpIteration&& other);
+	UnboundedRegExpIteration& operator =(UnboundedRegExpIteration&& other) noexcept;
 	virtual ~UnboundedRegExpIteration() noexcept;
 
 	/**
 	 * @copydoc UnboundedRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::plunder() const
 	 */
@@ -71,17 +71,17 @@ public:
 	 * @return element
 	 */
 	const UnboundedRegExpElement & getElement() const;
-	
+
 	/**
 	 * @return element
 	 */
 	UnboundedRegExpElement & getElement();
-	
+
 	/**
 	 * @param element to iterate
 	 */
 	void setElement(const UnboundedRegExpElement& element);
-	
+
 	void setElement(UnboundedRegExpElement&& element);
 
 	virtual int compare(const UnboundedRegExpElement& other) const {
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpSymbol.cpp b/alib2data/src/regexp/unbounded/UnboundedRegExpSymbol.cpp
index 47e5e49ad0587b596f115f06b7471cd0630fd511..8145ffbfcbdc2f12f1c85033436a00da9166dbe8 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpSymbol.cpp
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpSymbol.cpp
@@ -41,12 +41,12 @@ UnboundedRegExpSymbol& UnboundedRegExpSymbol::operator=(const UnboundedRegExpSym
 	return *this;
 }
 
-UnboundedRegExpSymbol& UnboundedRegExpSymbol::operator=(UnboundedRegExpSymbol&& other) {
+UnboundedRegExpSymbol& UnboundedRegExpSymbol::operator=(UnboundedRegExpSymbol&& other) noexcept {
 	std::swap(this->symbol, other.symbol);
 	std::swap(this->parentRegExp, other.parentRegExp);
-	
+
 	this->attachRegExp(other.parentRegExp);
-	
+
 	return *this;
 }
 
diff --git a/alib2data/src/regexp/unbounded/UnboundedRegExpSymbol.h b/alib2data/src/regexp/unbounded/UnboundedRegExpSymbol.h
index e5bb25efdea85b561a0fddc1898d7069c897542e..8328d789acce49f674741d760a126e07373c5d1a 100644
--- a/alib2data/src/regexp/unbounded/UnboundedRegExpSymbol.h
+++ b/alib2data/src/regexp/unbounded/UnboundedRegExpSymbol.h
@@ -30,12 +30,12 @@ protected:
 	 * @copydoc UnboundedRegExpElement::testSymbol() const
 	 */
 	virtual bool testSymbol( const alphabet::Symbol & symbol ) const;
-		
+
 	/**
 	 * @copydoc UnboundedRegExpElement::attachRegExp()
 	 */
 	virtual bool attachRegExp ( const UnboundedRegExp * regexp );
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::computeMinimalAlphabet()
 	 */
@@ -47,17 +47,17 @@ public:
 
 	explicit UnboundedRegExpSymbol(const alphabet::Symbol& symbol);
 	explicit UnboundedRegExpSymbol(alphabet::Symbol&& symbol);
-	
+
 	UnboundedRegExpSymbol(const UnboundedRegExpSymbol& other);
 	UnboundedRegExpSymbol(UnboundedRegExpSymbol&& other) noexcept;
 	UnboundedRegExpSymbol& operator=(const UnboundedRegExpSymbol& other);
-	UnboundedRegExpSymbol& operator=(UnboundedRegExpSymbol&& other);
+	UnboundedRegExpSymbol& operator=(UnboundedRegExpSymbol&& other) noexcept;
 
 	/**
 	 * @copydoc UnboundedRegExpElement::clone() const
 	 */
 	virtual UnboundedRegExpElement* clone() const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::plunder() const
 	 */
@@ -71,12 +71,12 @@ public:
 	}
 
 	virtual int compare(const UnboundedRegExpSymbol&) const;
-	
+
 	/**
 	 * @copydoc UnboundedRegExpElement::operator>>() const
 	 */
 	virtual void operator>>(std::ostream& out) const;
-	
+
 	/**
 	 * Returns the string representation of RegExp Symbol.
 	 */
diff --git a/alib2data/src/std/variant.hpp b/alib2data/src/std/variant.hpp
index 7ffc7220636c305ab96b69a4ceeef3134e15fe28..22352c04772419e877051f8f68cff67a71e4b184 100644
--- a/alib2data/src/std/variant.hpp
+++ b/alib2data/src/std/variant.hpp
@@ -141,14 +141,14 @@ public:
 	}
 
 	//move constructor
-	variant(variant<Ts...>&& old) : variant_base<static_max<sizeof(Ts)...>, static_max<alignof(Ts)...>, Ts...>()
+	variant(variant<Ts...>&& old) noexcept : variant_base<static_max<sizeof(Ts)...>, static_max<alignof(Ts)...>, Ts...>()
 	{
 		this->type_id = old.type_id;
 		helper_t::move(old.type_id, &old.data, &this->data);
 	}
 
 	//assignment operator
-	variant<Ts...>& operator= (variant<Ts...> old)
+	variant<Ts...>& operator= (variant<Ts...> old) noexcept
 	{
 		std::swap(this->type_id, old.type_id);
 		std::swap(this->data, old.data);
@@ -239,7 +239,7 @@ public:
 			throw std::bad_cast();
 	}
 
-	~variant() {
+	~variant() noexcept {
 		helper_t::destroy(this->type_id, &this->data);
 	}