diff --git a/CMakeLists.txt b/CMakeLists.txt
index e41a814..fb522f9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -165,7 +165,7 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR
 		set(GCC_EXTRA_OPTIONS "${GCC_EXTRA_OPTIONS} -fPIC")
 	endif()
 	#
-	set(FLAG_TESTED "-Wextra")
+	set(FLAG_TESTED "-Wextra -Wshadow -Weffc++ -pedantic -pedantic-errors")
 	check_cxx_compiler_flag(${FLAG_TESTED} FLAG_WEXTRA)
 	if(FLAG_WEXTRA)
 		set(GCC_EXTRA_OPTIONS "${GCC_EXTRA_OPTIONS} ${FLAG_TESTED}")
diff --git a/include/yaml-cpp/binary.h b/include/yaml-cpp/binary.h
index 29d5dbd..0267a3a 100644
--- a/include/yaml-cpp/binary.h
+++ b/include/yaml-cpp/binary.h
@@ -19,9 +19,13 @@ YAML_CPP_API std::vector<unsigned char> DecodeBase64(const std::string &input);
 
 class YAML_CPP_API Binary {
  public:
-  Binary() : m_unownedData(0), m_unownedSize(0) {}
   Binary(const unsigned char *data_, std::size_t size_)
-      : m_unownedData(data_), m_unownedSize(size_) {}
+      : m_data{}, m_unownedData(data_), m_unownedSize(size_) {}
+  Binary() : Binary(nullptr, 0) {}
+  Binary(const Binary &) = default;
+  Binary(Binary &&) = default;
+  Binary &operator=(const Binary &) = default;
+  Binary &operator=(Binary &&) = default;
 
   bool owned() const { return !m_unownedData; }
   std::size_t size() const { return owned() ? m_data.size() : m_unownedSize; }
@@ -62,6 +66,6 @@ class YAML_CPP_API Binary {
   const unsigned char *m_unownedData;
   std::size_t m_unownedSize;
 };
-}
+}  // namespace YAML
 
 #endif  // BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/include/yaml-cpp/contrib/anchordict.h b/include/yaml-cpp/contrib/anchordict.h
index 78db9ec..1b7809b 100644
--- a/include/yaml-cpp/contrib/anchordict.h
+++ b/include/yaml-cpp/contrib/anchordict.h
@@ -22,6 +22,7 @@ namespace YAML {
 template <class T>
 class AnchorDict {
  public:
+  AnchorDict() : m_data{} {}
   void Register(anchor_t anchor, T value) {
     if (anchor > m_data.size()) {
       m_data.resize(anchor);
@@ -34,6 +35,6 @@ class AnchorDict {
  private:
   std::vector<T> m_data;
 };
-}
+}  // namespace YAML
 
 #endif  // ANCHORDICT_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/include/yaml-cpp/emitter.h b/include/yaml-cpp/emitter.h
index ef92cc4..37de878 100644
--- a/include/yaml-cpp/emitter.h
+++ b/include/yaml-cpp/emitter.h
@@ -16,7 +16,6 @@
 #include "yaml-cpp/dll.h"
 #include "yaml-cpp/emitterdef.h"
 #include "yaml-cpp/emittermanip.h"
-#include "yaml-cpp/noncopyable.h"
 #include "yaml-cpp/null.h"
 #include "yaml-cpp/ostream_wrapper.h"
 
@@ -28,10 +27,12 @@ struct _Null;
 namespace YAML {
 class EmitterState;
 
-class YAML_CPP_API Emitter : private noncopyable {
+class YAML_CPP_API Emitter {
  public:
   Emitter();
   explicit Emitter(std::ostream& stream);
+  Emitter(const Emitter&) = delete;
+  Emitter& operator=(const Emitter&) = delete;
   ~Emitter();
 
   // output
@@ -249,6 +250,6 @@ inline Emitter& operator<<(Emitter& emitter, _Indent indent) {
 inline Emitter& operator<<(Emitter& emitter, _Precision precision) {
   return emitter.SetLocalPrecision(precision);
 }
-}
+}  // namespace YAML
 
 #endif  // EMITTER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/include/yaml-cpp/node/detail/memory.h b/include/yaml-cpp/node/detail/memory.h
index 8f2bc26..a4df0f7 100644
--- a/include/yaml-cpp/node/detail/memory.h
+++ b/include/yaml-cpp/node/detail/memory.h
@@ -22,6 +22,7 @@ namespace YAML {
 namespace detail {
 class YAML_CPP_API memory {
  public:
+  memory() : m_nodes{} {}
   node& create_node();
   void merge(const memory& rhs);
 
@@ -40,7 +41,7 @@ class YAML_CPP_API memory_holder {
  private:
   shared_memory m_pMemory;
 };
-}
-}
+}  // namespace detail
+}  // namespace YAML
 
 #endif  // VALUE_DETAIL_MEMORY_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/include/yaml-cpp/node/detail/node.h b/include/yaml-cpp/node/detail/node.h
index 8a776f6..a2cc52b 100644
--- a/include/yaml-cpp/node/detail/node.h
+++ b/include/yaml-cpp/node/detail/node.h
@@ -7,18 +7,18 @@
 #pragma once
 #endif
 
-#include "yaml-cpp/emitterstyle.h"
 #include "yaml-cpp/dll.h"
-#include "yaml-cpp/node/type.h"
-#include "yaml-cpp/node/ptr.h"
+#include "yaml-cpp/emitterstyle.h"
 #include "yaml-cpp/node/detail/node_ref.h"
+#include "yaml-cpp/node/ptr.h"
+#include "yaml-cpp/node/type.h"
 #include <set>
 
 namespace YAML {
 namespace detail {
 class node {
  public:
-  node() : m_pRef(new node_ref) {}
+  node() : m_pRef(new node_ref), m_dependencies{} {}
   node(const node&) = delete;
   node& operator=(const node&) = delete;
 
@@ -163,7 +163,7 @@ class node {
   typedef std::set<node*> nodes;
   nodes m_dependencies;
 };
-}
-}
+}  // namespace detail
+}  // namespace YAML
 
 #endif  // NODE_DETAIL_NODE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/include/yaml-cpp/node/impl.h b/include/yaml-cpp/node/impl.h
index de2bf44..8346f40 100644
--- a/include/yaml-cpp/node/impl.h
+++ b/include/yaml-cpp/node/impl.h
@@ -7,15 +7,15 @@
 #pragma once
 #endif
 
-#include "yaml-cpp/node/node.h"
-#include "yaml-cpp/node/iterator.h"
+#include "yaml-cpp/exceptions.h"
 #include "yaml-cpp/node/detail/memory.h"
 #include "yaml-cpp/node/detail/node.h"
-#include "yaml-cpp/exceptions.h"
+#include "yaml-cpp/node/iterator.h"
+#include "yaml-cpp/node/node.h"
 #include <string>
 
 namespace YAML {
-inline Node::Node() : m_isValid(true), m_pNode(NULL) {}
+inline Node::Node() : m_isValid(true), m_pMemory(nullptr), m_pNode(nullptr) {}
 
 inline Node::Node(NodeType::value type)
     : m_isValid(true),
@@ -42,7 +42,7 @@ inline Node::Node(const Node& rhs)
       m_pMemory(rhs.m_pMemory),
       m_pNode(rhs.m_pNode) {}
 
-inline Node::Node(Zombie) : m_isValid(false), m_pNode(NULL) {}
+inline Node::Node(Zombie) : m_isValid(false), m_pMemory{}, m_pNode(nullptr) {}
 
 inline Node::Node(detail::node& node, detail::shared_memory_holder pMemory)
     : m_isValid(true), m_pMemory(pMemory), m_pNode(&node) {}
@@ -202,6 +202,15 @@ inline Node& Node::operator=(const T& rhs) {
   return *this;
 }
 
+inline Node& Node::operator=(const Node& rhs) {
+  if (!m_isValid || !rhs.m_isValid)
+    throw InvalidNode();
+  if (is(rhs))
+    return *this;
+  AssignNode(rhs);
+  return *this;
+}
+
 inline void Node::reset(const YAML::Node& rhs) {
   if (!m_isValid || !rhs.m_isValid)
     throw InvalidNode();
@@ -238,15 +247,6 @@ inline void Node::Assign(char* rhs) {
   m_pNode->set_scalar(rhs);
 }
 
-inline Node& Node::operator=(const Node& rhs) {
-  if (!m_isValid || !rhs.m_isValid)
-    throw InvalidNode();
-  if (is(rhs))
-    return *this;
-  AssignNode(rhs);
-  return *this;
-}
-
 inline void Node::AssignData(const Node& rhs) {
   if (!m_isValid || !rhs.m_isValid)
     throw InvalidNode();
@@ -366,7 +366,7 @@ template <typename T>
 inline typename to_value_t<T>::return_type to_value(const T& t) {
   return to_value_t<T>(t)();
 }
-}
+}  // namespace detail
 
 // indexing
 template <typename Key>
@@ -374,8 +374,8 @@ inline const Node Node::operator[](const Key& key) const {
   if (!m_isValid)
     throw InvalidNode();
   EnsureNodeExists();
-  detail::node* value = static_cast<const detail::node&>(*m_pNode)
-                            .get(detail::to_value(key), m_pMemory);
+  detail::node* value = static_cast<const detail::node&>(*m_pNode).get(
+      detail::to_value(key), m_pMemory);
   if (!value) {
     return Node(ZombieNode);
   }
@@ -443,6 +443,6 @@ inline void Node::force_insert(const Key& key, const Value& value) {
 
 // free functions
 inline bool operator==(const Node& lhs, const Node& rhs) { return lhs.is(rhs); }
-}
+}  // namespace YAML
 
 #endif  // NODE_IMPL_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/include/yaml-cpp/noncopyable.h b/include/yaml-cpp/noncopyable.h
deleted file mode 100644
index a261040..0000000
--- a/include/yaml-cpp/noncopyable.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef NONCOPYABLE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
-#define NONCOPYABLE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
-
-#if defined(_MSC_VER) ||                                            \
-    (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
-     (__GNUC__ >= 4))  // GCC supports "pragma once" correctly since 3.4
-#pragma once
-#endif
-
-#include "yaml-cpp/dll.h"
-
-namespace YAML {
-// this is basically boost::noncopyable
-class YAML_CPP_API noncopyable {
- protected:
-  noncopyable() {}
-  ~noncopyable() {}
-
- private:
-  noncopyable(const noncopyable&);
-  const noncopyable& operator=(const noncopyable&);
-};
-}
-
-#endif  // NONCOPYABLE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/include/yaml-cpp/ostream_wrapper.h b/include/yaml-cpp/ostream_wrapper.h
index 09d45f3..259801b 100644
--- a/include/yaml-cpp/ostream_wrapper.h
+++ b/include/yaml-cpp/ostream_wrapper.h
@@ -17,6 +17,10 @@ class YAML_CPP_API ostream_wrapper {
  public:
   ostream_wrapper();
   explicit ostream_wrapper(std::ostream& stream);
+  ostream_wrapper(const ostream_wrapper&) = delete;
+  ostream_wrapper(ostream_wrapper&&) = delete;
+  ostream_wrapper& operator=(const ostream_wrapper&) = delete;
+  ostream_wrapper& operator=(ostream_wrapper&&) = delete;
   ~ostream_wrapper();
 
   void write(const std::string& str);
@@ -52,7 +56,7 @@ class YAML_CPP_API ostream_wrapper {
 
 template <std::size_t N>
 inline ostream_wrapper& operator<<(ostream_wrapper& stream,
-                                   const char(&str)[N]) {
+                                   const char (&str)[N]) {
   stream.write(str, N - 1);
   return stream;
 }
@@ -67,6 +71,6 @@ inline ostream_wrapper& operator<<(ostream_wrapper& stream, char ch) {
   stream.write(&ch, 1);
   return stream;
 }
-}
+}  // namespace YAML
 
 #endif  // OSTREAM_WRAPPER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/include/yaml-cpp/parser.h b/include/yaml-cpp/parser.h
index ceac22d..e9fba0c 100644
--- a/include/yaml-cpp/parser.h
+++ b/include/yaml-cpp/parser.h
@@ -11,7 +11,6 @@
 #include <memory>
 
 #include "yaml-cpp/dll.h"
-#include "yaml-cpp/noncopyable.h"
 
 namespace YAML {
 class EventHandler;
@@ -24,11 +23,17 @@ struct Token;
  * A parser turns a stream of bytes into one stream of "events" per YAML
  * document in the input stream.
  */
-class YAML_CPP_API Parser : private noncopyable {
+class YAML_CPP_API Parser {
  public:
   /** Constructs an empty parser (with no input. */
   Parser();
 
+  /** non copyable but movable */
+  Parser(const Parser&) = delete;
+  Parser(Parser&&) = default;
+  Parser& operator=(const Parser&) = delete;
+  Parser& operator=(Parser&&) = default;
+
   /**
    * Constructs a parser from the given input stream. The input stream must
    * live as long as the parser.
@@ -81,6 +86,6 @@ class YAML_CPP_API Parser : private noncopyable {
   std::unique_ptr<Scanner> m_pScanner;
   std::unique_ptr<Directives> m_pDirectives;
 };
-}
+}  // namespace YAML
 
 #endif  // PARSER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/collectionstack.h b/src/collectionstack.h
index ebdc587..9feba96 100644
--- a/src/collectionstack.h
+++ b/src/collectionstack.h
@@ -7,8 +7,8 @@
 #pragma once
 #endif
 
-#include <stack>
 #include <cassert>
+#include <stack>
 
 namespace YAML {
 struct CollectionType {
@@ -17,6 +17,7 @@ struct CollectionType {
 
 class CollectionStack {
  public:
+  CollectionStack() : collectionStack{} {}
   CollectionType::value GetCurCollectionType() const {
     if (collectionStack.empty())
       return CollectionType::NoCollection;
@@ -35,6 +36,6 @@ class CollectionStack {
  private:
   std::stack<CollectionType::value> collectionStack;
 };
-}
+}  // namespace YAML
 
 #endif  // COLLECTIONSTACK_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/contrib/graphbuilderadapter.h b/src/contrib/graphbuilderadapter.h
index 62b40a1..9078cdf 100644
--- a/src/contrib/graphbuilderadapter.h
+++ b/src/contrib/graphbuilderadapter.h
@@ -26,7 +26,15 @@ namespace YAML {
 class GraphBuilderAdapter : public EventHandler {
  public:
   GraphBuilderAdapter(GraphBuilderInterface& builder)
-      : m_builder(builder), m_pRootNode(nullptr), m_pKeyNode(nullptr) {}
+      : m_builder(builder),
+        m_containers{},
+        m_anchors{},
+        m_pRootNode(nullptr),
+        m_pKeyNode(nullptr) {}
+  GraphBuilderAdapter(const GraphBuilderAdapter&) = delete;
+  GraphBuilderAdapter(GraphBuilderAdapter&&) = delete;
+  GraphBuilderAdapter& operator=(const GraphBuilderAdapter&) = delete;
+  GraphBuilderAdapter& operator=(GraphBuilderAdapter&&) = delete;
 
   virtual void OnDocumentStart(const Mark& mark) { (void)mark; }
   virtual void OnDocumentEnd() {}
@@ -50,8 +58,8 @@ class GraphBuilderAdapter : public EventHandler {
   struct ContainerFrame {
     ContainerFrame(void* pSequence)
         : pContainer(pSequence), pPrevKeyNode(&sequenceMarker) {}
-    ContainerFrame(void* pMap, void* pPrevKeyNode)
-        : pContainer(pMap), pPrevKeyNode(pPrevKeyNode) {}
+    ContainerFrame(void* pMap, void* pPreviousKeyNode)
+        : pContainer(pMap), pPrevKeyNode(pPreviousKeyNode) {}
 
     void* pContainer;
     void* pPrevKeyNode;
@@ -74,6 +82,6 @@ class GraphBuilderAdapter : public EventHandler {
   void RegisterAnchor(anchor_t anchor, void* pNode);
   void DispositionNode(void* pNode);
 };
-}
+}  // namespace YAML
 
 #endif  // GRAPHBUILDERADAPTER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/directives.cpp b/src/directives.cpp
index 963bd2c..0c85d0f 100644
--- a/src/directives.cpp
+++ b/src/directives.cpp
@@ -1,12 +1,7 @@
 #include "directives.h"
 
 namespace YAML {
-Directives::Directives() {
-  // version
-  version.isDefault = true;
-  version.major = 1;
-  version.minor = 2;
-}
+Directives::Directives() : version{true, 1, 2}, tags{} {}
 
 const std::string Directives::TranslateTagHandle(
     const std::string& handle) const {
@@ -19,4 +14,4 @@ const std::string Directives::TranslateTagHandle(
 
   return it->second;
 }
-}
+}  // namespace YAML
diff --git a/src/emitfromevents.cpp b/src/emitfromevents.cpp
index 4832649..5a51bb4 100644
--- a/src/emitfromevents.cpp
+++ b/src/emitfromevents.cpp
@@ -16,10 +16,11 @@ std::string ToString(YAML::anchor_t anchor) {
   stream << anchor;
   return stream.str();
 }
-}
+}  // namespace
 
 namespace YAML {
-EmitFromEvents::EmitFromEvents(Emitter& emitter) : m_emitter(emitter) {}
+EmitFromEvents::EmitFromEvents(Emitter& emitter)
+    : m_emitter(emitter), m_stateStack{} {}
 
 void EmitFromEvents::OnDocumentStart(const Mark&) {}
 
@@ -116,4 +117,4 @@ void EmitFromEvents::EmitProps(const std::string& tag, anchor_t anchor) {
   if (anchor)
     m_emitter << Anchor(ToString(anchor));
 }
-}
+}  // namespace YAML
diff --git a/src/emitter.cpp b/src/emitter.cpp
index 6872252..016beb1 100644
--- a/src/emitter.cpp
+++ b/src/emitter.cpp
@@ -11,7 +11,7 @@ namespace YAML {
 class Binary;
 struct _Null;
 
-Emitter::Emitter() : m_pState(new EmitterState) {}
+Emitter::Emitter() : m_pState(new EmitterState), m_stream{} {}
 
 Emitter::Emitter(std::ostream& stream)
     : m_pState(new EmitterState), m_stream(stream) {}
@@ -906,4 +906,4 @@ Emitter& Emitter::Write(const Binary& binary) {
 
   return *this;
 }
-}
+}  // namespace YAML
diff --git a/src/emitterstate.cpp b/src/emitterstate.cpp
index d5f39e7..890b4f0 100644
--- a/src/emitterstate.cpp
+++ b/src/emitterstate.cpp
@@ -6,27 +6,31 @@
 namespace YAML {
 EmitterState::EmitterState()
     : m_isGood(true),
+      m_lastError{},
+      // default global manipulators
+      m_charset(EmitNonAscii),
+      m_strFmt(Auto),
+      m_boolFmt(TrueFalseBool),
+      m_boolLengthFmt(LongBool),
+      m_boolCaseFmt(LowerCase),
+      m_intFmt(Dec),
+      m_indent(2),
+      m_preCommentIndent(2),
+      m_postCommentIndent(1),
+      m_seqFmt(Block),
+      m_mapFmt(Block),
+      m_mapKeyFmt(Auto),
+      m_floatPrecision(std::numeric_limits<float>::max_digits10),
+      m_doublePrecision(std::numeric_limits<double>::max_digits10),
+      //
+      m_modifiedSettings{},
+      m_globalModifiedSettings{},
+      m_groups{},
       m_curIndent(0),
       m_hasAnchor(false),
       m_hasTag(false),
       m_hasNonContent(false),
-      m_docCount(0) {
-  // set default global manipulators
-  m_charset.set(EmitNonAscii);
-  m_strFmt.set(Auto);
-  m_boolFmt.set(TrueFalseBool);
-  m_boolLengthFmt.set(LongBool);
-  m_boolCaseFmt.set(LowerCase);
-  m_intFmt.set(Dec);
-  m_indent.set(2);
-  m_preCommentIndent.set(2);
-  m_postCommentIndent.set(1);
-  m_seqFmt.set(Block);
-  m_mapFmt.set(Block);
-  m_mapKeyFmt.set(Auto);
-  m_floatPrecision.set(std::numeric_limits<float>::max_digits10);
-  m_doublePrecision.set(std::numeric_limits<double>::max_digits10);
-}
+      m_docCount(0) {}
 
 EmitterState::~EmitterState() {}
 
@@ -362,4 +366,4 @@ bool EmitterState::SetDoublePrecision(std::size_t value,
   _Set(m_doublePrecision, value, scope);
   return true;
 }
-}
+}  // namespace YAML
diff --git a/src/emitterstate.h b/src/emitterstate.h
index 0937f00..75e2166 100644
--- a/src/emitterstate.h
+++ b/src/emitterstate.h
@@ -145,7 +145,12 @@ class EmitterState {
 
   struct Group {
     explicit Group(GroupType::value type_)
-        : type(type_), indent(0), childCount(0), longKey(false) {}
+        : type(type_),
+          flowType{},
+          indent(0),
+          childCount(0),
+          longKey(false),
+          modifiedSettings{} {}
 
     GroupType::value type;
     FlowType::value flowType;
@@ -198,6 +203,6 @@ void EmitterState::_Set(Setting<T>& fmt, T value, FmtScope::value scope) {
       assert(false);
   }
 }
-}
+}  // namespace YAML
 
 #endif  // EMITTERSTATE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/emitterutils.cpp b/src/emitterutils.cpp
index e02931f..e348599 100644
--- a/src/emitterutils.cpp
+++ b/src/emitterutils.cpp
@@ -8,8 +8,8 @@
 #include "regeximpl.h"
 #include "stringsource.h"
 #include "yaml-cpp/binary.h"  // IWYU pragma: keep
-#include "yaml-cpp/ostream_wrapper.h"
 #include "yaml-cpp/null.h"
+#include "yaml-cpp/ostream_wrapper.h"
 
 namespace YAML {
 namespace Utils {
@@ -173,12 +173,12 @@ bool IsValidPlainScalar(const std::string& str, FlowType::value flowType,
 
   // then check until something is disallowed
   static const RegEx& disallowed_flow =
-      Exp::EndScalarInFlow() || (Exp::BlankOrBreak() + Exp::Comment()) ||
-      Exp::NotPrintable() || Exp::Utf8_ByteOrderMark() || Exp::Break() ||
+      Exp::EndScalarInFlow() | (Exp::BlankOrBreak() + Exp::Comment()) |
+      Exp::NotPrintable() | Exp::Utf8_ByteOrderMark() | Exp::Break() |
       Exp::Tab();
   static const RegEx& disallowed_block =
-      Exp::EndScalar() || (Exp::BlankOrBreak() + Exp::Comment()) ||
-      Exp::NotPrintable() || Exp::Utf8_ByteOrderMark() || Exp::Break() ||
+      Exp::EndScalar() | (Exp::BlankOrBreak() + Exp::Comment()) |
+      Exp::NotPrintable() | Exp::Utf8_ByteOrderMark() | Exp::Break() |
       Exp::Tab();
   const RegEx& disallowed =
       flowType == FlowType::Flow ? disallowed_flow : disallowed_block;
@@ -258,7 +258,7 @@ bool WriteAliasName(ostream_wrapper& out, const std::string& str) {
   }
   return true;
 }
-}
+}  // namespace
 
 StringFormat::value ComputeStringFormat(const std::string& str,
                                         EMITTER_MANIP strFormat,
@@ -401,8 +401,8 @@ bool WriteComment(ostream_wrapper& out, const std::string& str,
   for (std::string::const_iterator i = str.begin();
        GetNextCodePointAndAdvance(codePoint, i, str.end());) {
     if (codePoint == '\n') {
-      out << "\n" << IndentTo(curIndent) << "#"
-          << Indentation(postCommentIndent);
+      out << "\n"
+          << IndentTo(curIndent) << "#" << Indentation(postCommentIndent);
       out.set_comment();
     } else {
       WriteCodePoint(out, codePoint);
@@ -479,5 +479,5 @@ bool WriteBinary(ostream_wrapper& out, const Binary& binary) {
                           false);
   return true;
 }
-}
-}
+}  // namespace Utils
+}  // namespace YAML
diff --git a/src/exp.h b/src/exp.h
index 7c02cf6..fe36535 100644
--- a/src/exp.h
+++ b/src/exp.h
@@ -33,15 +33,15 @@ inline const RegEx& Tab() {
   return e;
 }
 inline const RegEx& Blank() {
-  static const RegEx e = Space() || Tab();
+  static const RegEx e = Space() | Tab();
   return e;
 }
 inline const RegEx& Break() {
-  static const RegEx e = RegEx('\n') || RegEx("\r\n");
+  static const RegEx e = RegEx('\n') | RegEx("\r\n");
   return e;
 }
 inline const RegEx& BlankOrBreak() {
-  static const RegEx e = Blank() || Break();
+  static const RegEx e = Blank() | Break();
   return e;
 }
 inline const RegEx& Digit() {
@@ -49,29 +49,29 @@ inline const RegEx& Digit() {
   return e;
 }
 inline const RegEx& Alpha() {
-  static const RegEx e = RegEx('a', 'z') || RegEx('A', 'Z');
+  static const RegEx e = RegEx('a', 'z') | RegEx('A', 'Z');
   return e;
 }
 inline const RegEx& AlphaNumeric() {
-  static const RegEx e = Alpha() || Digit();
+  static const RegEx e = Alpha() | Digit();
   return e;
 }
 inline const RegEx& Word() {
-  static const RegEx e = AlphaNumeric() || RegEx('-');
+  static const RegEx e = AlphaNumeric() | RegEx('-');
   return e;
 }
 inline const RegEx& Hex() {
-  static const RegEx e = Digit() || RegEx('A', 'F') || RegEx('a', 'f');
+  static const RegEx e = Digit() | RegEx('A', 'F') | RegEx('a', 'f');
   return e;
 }
 // Valid Unicode code points that are not part of c-printable (YAML 1.2, sec.
 // 5.1)
 inline const RegEx& NotPrintable() {
   static const RegEx e =
-      RegEx(0) ||
-      RegEx("\x01\x02\x03\x04\x05\x06\x07\x08\x0B\x0C\x7F", REGEX_OR) ||
-      RegEx(0x0E, 0x1F) ||
-      (RegEx('\xC2') + (RegEx('\x80', '\x84') || RegEx('\x86', '\x9F')));
+      RegEx(0) |
+      RegEx("\x01\x02\x03\x04\x05\x06\x07\x08\x0B\x0C\x7F", REGEX_OR) |
+      RegEx(0x0E, 0x1F) |
+      (RegEx('\xC2') + (RegEx('\x80', '\x84') | RegEx('\x86', '\x9F')));
   return e;
 }
 inline const RegEx& Utf8_ByteOrderMark() {
@@ -82,19 +82,19 @@ inline const RegEx& Utf8_ByteOrderMark() {
 // actual tags
 
 inline const RegEx& DocStart() {
-  static const RegEx e = RegEx("---") + (BlankOrBreak() || RegEx());
+  static const RegEx e = RegEx("---") + (BlankOrBreak() | RegEx());
   return e;
 }
 inline const RegEx& DocEnd() {
-  static const RegEx e = RegEx("...") + (BlankOrBreak() || RegEx());
+  static const RegEx e = RegEx("...") + (BlankOrBreak() | RegEx());
   return e;
 }
 inline const RegEx& DocIndicator() {
-  static const RegEx e = DocStart() || DocEnd();
+  static const RegEx e = DocStart() | DocEnd();
   return e;
 }
 inline const RegEx& BlockEntry() {
-  static const RegEx e = RegEx('-') + (BlankOrBreak() || RegEx());
+  static const RegEx e = RegEx('-') + (BlankOrBreak() | RegEx());
   return e;
 }
 inline const RegEx& Key() {
@@ -106,11 +106,11 @@ inline const RegEx& KeyInFlow() {
   return e;
 }
 inline const RegEx& Value() {
-  static const RegEx e = RegEx(':') + (BlankOrBreak() || RegEx());
+  static const RegEx e = RegEx(':') + (BlankOrBreak() | RegEx());
   return e;
 }
 inline const RegEx& ValueInFlow() {
-  static const RegEx e = RegEx(':') + (BlankOrBreak() || RegEx(",}", REGEX_OR));
+  static const RegEx e = RegEx(':') + (BlankOrBreak() | RegEx(",}", REGEX_OR));
   return e;
 }
 inline const RegEx& ValueInJSONFlow() {
@@ -122,20 +122,20 @@ inline const RegEx Comment() {
   return e;
 }
 inline const RegEx& Anchor() {
-  static const RegEx e = !(RegEx("[]{},", REGEX_OR) || BlankOrBreak());
+  static const RegEx e = !(RegEx("[]{},", REGEX_OR) | BlankOrBreak());
   return e;
 }
 inline const RegEx& AnchorEnd() {
-  static const RegEx e = RegEx("?:,]}%@`", REGEX_OR) || BlankOrBreak();
+  static const RegEx e = RegEx("?:,]}%@`", REGEX_OR) | BlankOrBreak();
   return e;
 }
 inline const RegEx& URI() {
-  static const RegEx e = Word() || RegEx("#;/?:@&=+$,_.!~*'()[]", REGEX_OR) ||
+  static const RegEx e = Word() | RegEx("#;/?:@&=+$,_.!~*'()[]", REGEX_OR) |
                          (RegEx('%') + Hex() + Hex());
   return e;
 }
 inline const RegEx& Tag() {
-  static const RegEx e = Word() || RegEx("#;/?:@&=+$_.~*'()", REGEX_OR) ||
+  static const RegEx e = Word() | RegEx("#;/?:@&=+$_.~*'()", REGEX_OR) |
                          (RegEx('%') + Hex() + Hex());
   return e;
 }
@@ -148,34 +148,34 @@ inline const RegEx& Tag() {
 // space.
 inline const RegEx& PlainScalar() {
   static const RegEx e =
-      !(BlankOrBreak() || RegEx(",[]{}#&*!|>\'\"%@`", REGEX_OR) ||
-        (RegEx("-?:", REGEX_OR) + (BlankOrBreak() || RegEx())));
+      !(BlankOrBreak() | RegEx(",[]{}#&*!|>\'\"%@`", REGEX_OR) |
+        (RegEx("-?:", REGEX_OR) + (BlankOrBreak() | RegEx())));
   return e;
 }
 inline const RegEx& PlainScalarInFlow() {
   static const RegEx e =
-      !(BlankOrBreak() || RegEx("?,[]{}#&*!|>\'\"%@`", REGEX_OR) ||
+      !(BlankOrBreak() | RegEx("?,[]{}#&*!|>\'\"%@`", REGEX_OR) |
         (RegEx("-:", REGEX_OR) + Blank()));
   return e;
 }
 inline const RegEx& EndScalar() {
-  static const RegEx e = RegEx(':') + (BlankOrBreak() || RegEx());
+  static const RegEx e = RegEx(':') + (BlankOrBreak() | RegEx());
   return e;
 }
 inline const RegEx& EndScalarInFlow() {
   static const RegEx e =
-      (RegEx(':') + (BlankOrBreak() || RegEx() || RegEx(",]}", REGEX_OR))) ||
+      (RegEx(':') + (BlankOrBreak() | RegEx() | RegEx(",]}", REGEX_OR))) |
       RegEx(",?[]{}", REGEX_OR);
   return e;
 }
 
 inline const RegEx& ScanScalarEndInFlow() {
-  static const RegEx e = (EndScalarInFlow() || (BlankOrBreak() + Comment()));
+  static const RegEx e = (EndScalarInFlow() | (BlankOrBreak() + Comment()));
   return e;
 }
 
 inline const RegEx& ScanScalarEnd() {
-  static const RegEx e = EndScalar() || (BlankOrBreak() + Comment());
+  static const RegEx e = EndScalar() | (BlankOrBreak() + Comment());
   return e;
 }
 inline const RegEx& EscSingleQuote() {
@@ -192,8 +192,8 @@ inline const RegEx& ChompIndicator() {
   return e;
 }
 inline const RegEx& Chomp() {
-  static const RegEx e = (ChompIndicator() + Digit()) ||
-                         (Digit() + ChompIndicator()) || ChompIndicator() ||
+  static const RegEx e = (ChompIndicator() + Digit()) |
+                         (Digit() + ChompIndicator()) | ChompIndicator() |
                          Digit();
   return e;
 }
diff --git a/src/node_data.cpp b/src/node_data.cpp
index 04104b7..c65accb 100644
--- a/src/node_data.cpp
+++ b/src/node_data.cpp
@@ -14,16 +14,21 @@ namespace YAML {
 namespace detail {
 
 const std::string& node_data::empty_scalar() {
-    static const std::string svalue;
-    return svalue;
+  static const std::string svalue;
+  return svalue;
 }
 
 node_data::node_data()
     : m_isDefined(false),
       m_mark(Mark::null_mark()),
       m_type(NodeType::Null),
+      m_tag{},
       m_style(EmitterStyle::Default),
-      m_seqSize(0) {}
+      m_scalar{},
+      m_sequence{},
+      m_seqSize(0),
+      m_map{},
+      m_undefinedPairs{} {}
 
 void node_data::mark_defined() {
   if (m_type == NodeType::Undefined)
@@ -238,8 +243,8 @@ bool node_data::remove(node& key, shared_memory_holder /* pMemory */) {
   if (m_type != NodeType::Map)
     return false;
 
-  kv_pairs::iterator it = m_undefinedPairs.begin();
-  while (it != m_undefinedPairs.end()) {
+  for (kv_pairs::iterator it = m_undefinedPairs.begin();
+       it != m_undefinedPairs.end();) {
     kv_pairs::iterator jt = std::next(it);
     if (it->first->is(key))
       m_undefinedPairs.erase(it);
@@ -307,5 +312,5 @@ void node_data::convert_sequence_to_map(shared_memory_holder pMemory) {
   reset_sequence();
   m_type = NodeType::Map;
 }
-}
-}
+}  // namespace detail
+}  // namespace YAML
diff --git a/src/nodebuilder.cpp b/src/nodebuilder.cpp
index e79ac50..c90a66c 100644
--- a/src/nodebuilder.cpp
+++ b/src/nodebuilder.cpp
@@ -11,7 +11,12 @@ namespace YAML {
 struct Mark;
 
 NodeBuilder::NodeBuilder()
-    : m_pMemory(new detail::memory_holder), m_pRoot(nullptr), m_mapDepth(0) {
+    : m_pMemory(new detail::memory_holder),
+      m_pRoot(nullptr),
+      m_stack{},
+      m_anchors{},
+      m_keys{},
+      m_mapDepth(0) {
   m_anchors.push_back(nullptr);  // since the anchors start at 1
 }
 
@@ -127,4 +132,4 @@ void NodeBuilder::RegisterAnchor(anchor_t anchor, detail::node& node) {
     m_anchors.push_back(&node);
   }
 }
-}
+}  // namespace YAML
diff --git a/src/nodebuilder.h b/src/nodebuilder.h
index a6a47f0..642da36 100644
--- a/src/nodebuilder.h
+++ b/src/nodebuilder.h
@@ -27,6 +27,10 @@ class Node;
 class NodeBuilder : public EventHandler {
  public:
   NodeBuilder();
+  NodeBuilder(const NodeBuilder&) = delete;
+  NodeBuilder(NodeBuilder&&) = delete;
+  NodeBuilder& operator=(const NodeBuilder&) = delete;
+  NodeBuilder& operator=(NodeBuilder&&) = delete;
   virtual ~NodeBuilder();
 
   Node Root();
@@ -65,6 +69,6 @@ class NodeBuilder : public EventHandler {
   std::vector<PushedKey> m_keys;
   std::size_t m_mapDepth;
 };
-}
+}  // namespace YAML
 
 #endif  // NODE_NODEBUILDER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/nodeevents.cpp b/src/nodeevents.cpp
index 82261fe..b7222e0 100644
--- a/src/nodeevents.cpp
+++ b/src/nodeevents.cpp
@@ -20,7 +20,7 @@ anchor_t NodeEvents::AliasManager::LookupAnchor(
 }
 
 NodeEvents::NodeEvents(const Node& node)
-    : m_pMemory(node.m_pMemory), m_root(node.m_pNode) {
+    : m_pMemory(node.m_pMemory), m_root(node.m_pNode), m_refCount{} {
   if (m_root)
     Setup(*m_root);
 }
@@ -98,4 +98,4 @@ bool NodeEvents::IsAliased(const detail::node& node) const {
   RefCount::const_iterator it = m_refCount.find(node.ref());
   return it != m_refCount.end() && it->second > 1;
 }
-}
+}  // namespace YAML
diff --git a/src/nodeevents.h b/src/nodeevents.h
index 49c18eb..dbed5d2 100644
--- a/src/nodeevents.h
+++ b/src/nodeevents.h
@@ -26,13 +26,17 @@ class Node;
 class NodeEvents {
  public:
   explicit NodeEvents(const Node& node);
+  NodeEvents(const NodeEvents&) = delete;
+  NodeEvents(NodeEvents&&) = delete;
+  NodeEvents& operator=(const NodeEvents&) = delete;
+  NodeEvents& operator=(NodeEvents&&) = delete;
 
   void Emit(EventHandler& handler);
 
  private:
   class AliasManager {
    public:
-    AliasManager() : m_curAnchor(0) {}
+    AliasManager() : m_anchorByIdentity{}, m_curAnchor(0) {}
 
     void RegisterReference(const detail::node& node);
     anchor_t LookupAnchor(const detail::node& node) const;
@@ -59,6 +63,6 @@ class NodeEvents {
   typedef std::map<const detail::node_ref*, int> RefCount;
   RefCount m_refCount;
 };
-}
+}  // namespace YAML
 
 #endif  // NODE_NODEEVENTS_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/ostream_wrapper.cpp b/src/ostream_wrapper.cpp
index a3c7597..5fa5858 100644
--- a/src/ostream_wrapper.cpp
+++ b/src/ostream_wrapper.cpp
@@ -14,7 +14,12 @@ ostream_wrapper::ostream_wrapper()
       m_comment(false) {}
 
 ostream_wrapper::ostream_wrapper(std::ostream& stream)
-    : m_pStream(&stream), m_pos(0), m_row(0), m_col(0), m_comment(false) {}
+    : m_buffer{},
+      m_pStream(&stream),
+      m_pos(0),
+      m_row(0),
+      m_col(0),
+      m_comment(false) {}
 
 ostream_wrapper::~ostream_wrapper() {}
 
@@ -54,4 +59,4 @@ void ostream_wrapper::update_pos(char ch) {
     m_comment = false;
   }
 }
-}
+}  // namespace YAML
diff --git a/src/parser.cpp b/src/parser.cpp
index cd69f39..7bc0c78 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -11,9 +11,9 @@
 namespace YAML {
 class EventHandler;
 
-Parser::Parser() {}
+Parser::Parser() : m_pScanner{}, m_pDirectives{} {}
 
-Parser::Parser(std::istream& in) { Load(in); }
+Parser::Parser(std::istream& in) : Parser() { Load(in); }
 
 Parser::~Parser() {}
 
@@ -126,4 +126,4 @@ void Parser::PrintTokens(std::ostream& out) {
     m_pScanner->pop();
   }
 }
-}
+}  // namespace YAML
diff --git a/src/ptr_vector.h b/src/ptr_vector.h
index 955aebd..d58de04 100644
--- a/src/ptr_vector.h
+++ b/src/ptr_vector.h
@@ -12,15 +12,17 @@
 #include <memory>
 #include <vector>
 
-#include "yaml-cpp/noncopyable.h"
-
 namespace YAML {
 
 // TODO: This class is no longer needed
 template <typename T>
-class ptr_vector : private YAML::noncopyable {
+class ptr_vector {
  public:
-  ptr_vector() {}
+  ptr_vector() : m_data{} {}
+  ptr_vector(const ptr_vector&) = delete;
+  ptr_vector(ptr_vector&&) = default;
+  ptr_vector& operator=(const ptr_vector&) = delete;
+  ptr_vector& operator=(ptr_vector&&) = default;
 
   void clear() { m_data.clear(); }
 
@@ -38,6 +40,6 @@ class ptr_vector : private YAML::noncopyable {
  private:
   std::vector<std::unique_ptr<T>> m_data;
 };
-}
+}  // namespace YAML
 
 #endif  // PTR_VECTOR_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/regex_yaml.cpp b/src/regex_yaml.cpp
index 20b7720..bf1784b 100644
--- a/src/regex_yaml.cpp
+++ b/src/regex_yaml.cpp
@@ -2,18 +2,16 @@
 
 namespace YAML {
 // constructors
-RegEx::RegEx() : m_op(REGEX_EMPTY) {}
 
-RegEx::RegEx(REGEX_OP op) : m_op(op) {}
+RegEx::RegEx(REGEX_OP op) : m_op(op), m_a(0), m_z(0), m_params{} {}
+RegEx::RegEx() : RegEx(REGEX_EMPTY) {}
 
-RegEx::RegEx(char ch) : m_op(REGEX_MATCH), m_a(ch) {}
+RegEx::RegEx(char ch) : m_op(REGEX_MATCH), m_a(ch), m_z(0), m_params{} {}
 
-RegEx::RegEx(char a, char z) : m_op(REGEX_RANGE), m_a(a), m_z(z) {}
+RegEx::RegEx(char a, char z) : m_op(REGEX_RANGE), m_a(a), m_z(z), m_params{} {}
 
-RegEx::RegEx(const std::string& str, REGEX_OP op) : m_op(op) {
-  for (std::size_t i = 0; i < str.size(); i++)
-    m_params.push_back(RegEx(str[i]));
-}
+RegEx::RegEx(const std::string& str, REGEX_OP op)
+    : m_op(op), m_a(0), m_z(0), m_params(str.begin(), str.end()) {}
 
 // combination constructors
 RegEx operator!(const RegEx& ex) {
@@ -22,14 +20,14 @@ RegEx operator!(const RegEx& ex) {
   return ret;
 }
 
-RegEx operator||(const RegEx& ex1, const RegEx& ex2) {
+RegEx operator|(const RegEx& ex1, const RegEx& ex2) {
   RegEx ret(REGEX_OR);
   ret.m_params.push_back(ex1);
   ret.m_params.push_back(ex2);
   return ret;
 }
 
-RegEx operator&&(const RegEx& ex1, const RegEx& ex2) {
+RegEx operator&(const RegEx& ex1, const RegEx& ex2) {
   RegEx ret(REGEX_AND);
   ret.m_params.push_back(ex1);
   ret.m_params.push_back(ex2);
@@ -42,4 +40,4 @@ RegEx operator+(const RegEx& ex1, const RegEx& ex2) {
   ret.m_params.push_back(ex2);
   return ret;
 }
-}
+}  // namespace YAML
diff --git a/src/regex_yaml.h b/src/regex_yaml.h
index 1611cb2..3a347bb 100644
--- a/src/regex_yaml.h
+++ b/src/regex_yaml.h
@@ -31,14 +31,14 @@ enum REGEX_OP {
 class YAML_CPP_API RegEx {
  public:
   RegEx();
-  RegEx(char ch);
+  explicit RegEx(char ch);
   RegEx(char a, char z);
   RegEx(const std::string& str, REGEX_OP op = REGEX_SEQ);
   ~RegEx() {}
 
   friend YAML_CPP_API RegEx operator!(const RegEx& ex);
-  friend YAML_CPP_API RegEx operator||(const RegEx& ex1, const RegEx& ex2);
-  friend YAML_CPP_API RegEx operator&&(const RegEx& ex1, const RegEx& ex2);
+  friend YAML_CPP_API RegEx operator|(const RegEx& ex1, const RegEx& ex2);
+  friend YAML_CPP_API RegEx operator&(const RegEx& ex1, const RegEx& ex2);
   friend YAML_CPP_API RegEx operator+(const RegEx& ex1, const RegEx& ex2);
 
   bool Matches(char ch) const;
@@ -53,7 +53,7 @@ class YAML_CPP_API RegEx {
   int Match(const Source& source) const;
 
  private:
-  RegEx(REGEX_OP op);
+  explicit RegEx(REGEX_OP op);
 
   template <typename Source>
   bool IsValidSource(const Source& source) const;
diff --git a/src/scanner.cpp b/src/scanner.cpp
index 546a2f0..ac84892 100644
--- a/src/scanner.cpp
+++ b/src/scanner.cpp
@@ -9,10 +9,15 @@
 namespace YAML {
 Scanner::Scanner(std::istream& in)
     : INPUT(in),
+      m_tokens{},
       m_startedStream(false),
       m_endedStream(false),
       m_simpleKeyAllowed(false),
-      m_canBeJSONFlow(false) {}
+      m_canBeJSONFlow(false),
+      m_simpleKeys{},
+      m_indents{},
+      m_indentRefs{},
+      m_flows{} {}
 
 Scanner::~Scanner() {}
 
diff --git a/src/scantoken.cpp b/src/scantoken.cpp
index fd8758d..325de57 100644
--- a/src/scantoken.cpp
+++ b/src/scantoken.cpp
@@ -338,7 +338,7 @@ void Scanner::ScanQuotedScalar() {
 
   // setup the scanning parameters
   ScanScalarParams params;
-  RegEx end = (single ? RegEx(quote) && !Exp::EscSingleQuote() : RegEx(quote));
+  RegEx end = (single ? RegEx(quote) & !Exp::EscSingleQuote() : RegEx(quote));
   params.end = &end;
   params.eatEnd = true;
   params.escape = (single ? '\'' : '\\');
@@ -434,4 +434,4 @@ void Scanner::ScanBlockScalar() {
   token.value = scalar;
   m_tokens.push(token);
 }
-}
+}  // namespace YAML
diff --git a/src/setting.h b/src/setting.h
index b78d40e..280d1e7 100644
--- a/src/setting.h
+++ b/src/setting.h
@@ -8,8 +8,8 @@
 #endif
 
 #include <memory>
+#include <utility>
 #include <vector>
-#include "yaml-cpp/noncopyable.h"
 
 namespace YAML {
 class SettingChangeBase;
@@ -18,6 +18,7 @@ template <typename T>
 class Setting {
  public:
   Setting() : m_value() {}
+  Setting(const T& value) : m_value() { set(value); }
 
   const T get() const { return m_value; }
   std::unique_ptr<SettingChangeBase> set(const T& value);
@@ -36,10 +37,14 @@ class SettingChangeBase {
 template <typename T>
 class SettingChange : public SettingChangeBase {
  public:
-  SettingChange(Setting<T>* pSetting) : m_pCurSetting(pSetting) {
-    // copy old setting to save its state
-    m_oldSetting = *pSetting;
-  }
+  SettingChange(Setting<T>* pSetting)
+      : m_pCurSetting(pSetting),
+        m_oldSetting(*pSetting)  // copy old setting to save its state
+  {}
+  SettingChange(const SettingChange&) = delete;
+  SettingChange(SettingChange&&) = delete;
+  SettingChange& operator=(const SettingChange&) = delete;
+  SettingChange& operator=(SettingChange&&) = delete;
 
   virtual void pop() { m_pCurSetting->restore(m_oldSetting); }
 
@@ -55,9 +60,12 @@ inline std::unique_ptr<SettingChangeBase> Setting<T>::set(const T& value) {
   return pChange;
 }
 
-class SettingChanges : private noncopyable {
+class SettingChanges {
  public:
-  SettingChanges() {}
+  SettingChanges() : m_settingChanges{} {}
+  SettingChanges(const SettingChanges&) = delete;
+  SettingChanges(SettingChanges&&) = default;
+  SettingChanges& operator=(const SettingChanges&) = delete;
   ~SettingChanges() { clear(); }
 
   void clear() {
@@ -90,6 +98,6 @@ class SettingChanges : private noncopyable {
   typedef std::vector<std::unique_ptr<SettingChangeBase>> setting_changes;
   setting_changes m_settingChanges;
 };
-}
+}  // namespace YAML
 
 #endif  // SETTING_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/singledocparser.cpp b/src/singledocparser.cpp
index e267797..be82741 100644
--- a/src/singledocparser.cpp
+++ b/src/singledocparser.cpp
@@ -18,6 +18,7 @@ SingleDocParser::SingleDocParser(Scanner& scanner, const Directives& directives)
     : m_scanner(scanner),
       m_directives(directives),
       m_pCollectionStack(new CollectionStack),
+      m_anchors{},
       m_curAnchor(0) {}
 
 SingleDocParser::~SingleDocParser() {}
@@ -170,10 +171,10 @@ void SingleDocParser::HandleBlockSequence(EventHandler& eventHandler) {
 
     // check for null
     if (!m_scanner.empty()) {
-      const Token& token = m_scanner.peek();
-      if (token.type == Token::BLOCK_ENTRY ||
-          token.type == Token::BLOCK_SEQ_END) {
-        eventHandler.OnNull(token.mark, NullAnchor);
+      const Token& nextToken = m_scanner.peek();
+      if (nextToken.type == Token::BLOCK_ENTRY ||
+          nextToken.type == Token::BLOCK_SEQ_END) {
+        eventHandler.OnNull(nextToken.mark, NullAnchor);
         continue;
       }
     }
diff --git a/src/singledocparser.h b/src/singledocparser.h
index a78301e..392453e 100644
--- a/src/singledocparser.h
+++ b/src/singledocparser.h
@@ -12,7 +12,6 @@
 #include <string>
 
 #include "yaml-cpp/anchor.h"
-#include "yaml-cpp/noncopyable.h"
 
 namespace YAML {
 class CollectionStack;
@@ -23,9 +22,13 @@ struct Directives;
 struct Mark;
 struct Token;
 
-class SingleDocParser : private noncopyable {
+class SingleDocParser {
  public:
   SingleDocParser(Scanner& scanner, const Directives& directives);
+  SingleDocParser(const SingleDocParser&) = delete;
+  SingleDocParser(SingleDocParser&&) = delete;
+  SingleDocParser& operator=(const SingleDocParser&) = delete;
+  SingleDocParser& operator=(SingleDocParser&&) = delete;
   ~SingleDocParser();
 
   void HandleDocument(EventHandler& eventHandler);
diff --git a/src/stream.cpp b/src/stream.cpp
index 3b013cf..592802d 100644
--- a/src/stream.cpp
+++ b/src/stream.cpp
@@ -111,24 +111,15 @@ static UtfIntroState s_introTransitions[][uictMax] = {
 
 static char s_introUngetCount[][uictMax] = {
     // uict00, uictBB, uictBF, uictEF, uictFE, uictFF, uictAscii, uictOther
-    {0, 1, 1, 0, 0, 0, 0, 1},
-    {0, 2, 2, 2, 2, 2, 2, 2},
-    {3, 3, 3, 3, 0, 3, 3, 3},
-    {4, 4, 4, 4, 4, 0, 4, 4},
-    {1, 1, 1, 1, 1, 1, 1, 1},
-    {1, 1, 1, 1, 1, 1, 1, 1},
-    {2, 2, 2, 2, 2, 0, 2, 2},
-    {2, 2, 2, 2, 0, 2, 2, 2},
-    {0, 1, 1, 1, 1, 1, 1, 1},
-    {0, 2, 2, 2, 2, 2, 2, 2},
-    {1, 1, 1, 1, 1, 1, 1, 1},
-    {1, 1, 1, 1, 1, 1, 1, 1},
-    {0, 2, 2, 2, 2, 2, 2, 2},
-    {0, 3, 3, 3, 3, 3, 3, 3},
-    {4, 4, 4, 4, 4, 4, 4, 4},
-    {2, 0, 2, 2, 2, 2, 2, 2},
-    {3, 3, 0, 3, 3, 3, 3, 3},
-    {1, 1, 1, 1, 1, 1, 1, 1},
+    {0, 1, 1, 0, 0, 0, 0, 1}, {0, 2, 2, 2, 2, 2, 2, 2},
+    {3, 3, 3, 3, 0, 3, 3, 3}, {4, 4, 4, 4, 4, 0, 4, 4},
+    {1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1},
+    {2, 2, 2, 2, 2, 0, 2, 2}, {2, 2, 2, 2, 0, 2, 2, 2},
+    {0, 1, 1, 1, 1, 1, 1, 1}, {0, 2, 2, 2, 2, 2, 2, 2},
+    {1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1},
+    {0, 2, 2, 2, 2, 2, 2, 2}, {0, 3, 3, 3, 3, 3, 3, 3},
+    {4, 4, 4, 4, 4, 4, 4, 4}, {2, 0, 2, 2, 2, 2, 2, 2},
+    {3, 3, 0, 3, 3, 3, 3, 3}, {1, 1, 1, 1, 1, 1, 1, 1},
 };
 
 inline UtfIntroCharType IntroCharTypeOf(std::istream::int_type ch) {
@@ -192,6 +183,9 @@ inline void QueueUnicodeCodepoint(std::deque<char>& q, unsigned long ch) {
 
 Stream::Stream(std::istream& input)
     : m_input(input),
+      m_mark{},
+      m_charSet{},
+      m_readahead{},
       m_pPrefetched(new unsigned char[YAML_PREFETCH_SIZE]),
       m_nPrefetchedAvailable(0),
       m_nPrefetchedUsed(0) {
@@ -445,4 +439,4 @@ void Stream::StreamInUtf32() const {
 
   QueueUnicodeCodepoint(m_readahead, ch);
 }
-}
+}  // namespace YAML
diff --git a/src/stream.h b/src/stream.h
index 42d542d..ff5149e 100644
--- a/src/stream.h
+++ b/src/stream.h
@@ -7,7 +7,6 @@
 #pragma once
 #endif
 
-#include "yaml-cpp/noncopyable.h"
 #include "yaml-cpp/mark.h"
 #include <cstddef>
 #include <deque>
@@ -17,11 +16,15 @@
 #include <string>
 
 namespace YAML {
-class Stream : private noncopyable {
+class Stream {
  public:
   friend class StreamCharSource;
 
   Stream(std::istream& input);
+  Stream(const Stream&) = delete;
+  Stream(Stream&&) = delete;
+  Stream& operator=(const Stream&) = delete;
+  Stream& operator=(Stream&&) = delete;
   ~Stream();
 
   operator bool() const;
@@ -71,6 +74,6 @@ inline bool Stream::ReadAheadTo(size_t i) const {
     return true;
   return _ReadAheadTo(i);
 }
-}
+}  // namespace YAML
 
 #endif  // STREAM_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/streamcharsource.h b/src/streamcharsource.h
index 624599e..4b6a143 100644
--- a/src/streamcharsource.h
+++ b/src/streamcharsource.h
@@ -7,7 +7,6 @@
 #pragma once
 #endif
 
-#include "yaml-cpp/noncopyable.h"
 #include <cstddef>
 
 namespace YAML {
@@ -16,6 +15,9 @@ class StreamCharSource {
   StreamCharSource(const Stream& stream) : m_offset(0), m_stream(stream) {}
   StreamCharSource(const StreamCharSource& source)
       : m_offset(source.m_offset), m_stream(source.m_stream) {}
+  StreamCharSource(StreamCharSource&&) = default;
+  StreamCharSource& operator=(const StreamCharSource&) = delete;
+  StreamCharSource& operator=(StreamCharSource&&) = delete;
   ~StreamCharSource() {}
 
   operator bool() const;
@@ -27,8 +29,6 @@ class StreamCharSource {
  private:
   std::size_t m_offset;
   const Stream& m_stream;
-
-  StreamCharSource& operator=(const StreamCharSource&);  // non-assignable
 };
 
 inline StreamCharSource::operator bool() const {
@@ -43,6 +43,6 @@ inline const StreamCharSource StreamCharSource::operator+(int i) const {
     source.m_offset = 0;
   return source;
 }
-}
+}  // namespace YAML
 
 #endif  // STREAMCHARSOURCE_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/src/tag.cpp b/src/tag.cpp
index 5143552..df8a2cf 100644
--- a/src/tag.cpp
+++ b/src/tag.cpp
@@ -6,7 +6,8 @@
 #include "token.h"
 
 namespace YAML {
-Tag::Tag(const Token& token) : type(static_cast<TYPE>(token.data)) {
+Tag::Tag(const Token& token)
+    : type(static_cast<TYPE>(token.data)), handle{}, value{} {
   switch (type) {
     case VERBATIM:
       value = token.value;
@@ -46,4 +47,4 @@ const std::string Tag::Translate(const Directives& directives) {
   }
   throw std::runtime_error("yaml-cpp: internal error, bad tag type");
 }
-}
+}  // namespace YAML
diff --git a/src/token.h b/src/token.h
index ad0b7d0..9a27f3d 100644
--- a/src/token.h
+++ b/src/token.h
@@ -14,10 +14,11 @@
 
 namespace YAML {
 const std::string TokenNames[] = {
-    "DIRECTIVE", "DOC_START", "DOC_END", "BLOCK_SEQ_START", "BLOCK_MAP_START",
-    "BLOCK_SEQ_END", "BLOCK_MAP_END", "BLOCK_ENTRY", "FLOW_SEQ_START",
-    "FLOW_MAP_START", "FLOW_SEQ_END", "FLOW_MAP_END", "FLOW_MAP_COMPACT",
-    "FLOW_ENTRY", "KEY", "VALUE", "ANCHOR", "ALIAS", "TAG", "SCALAR"};
+    "DIRECTIVE",        "DOC_START",      "DOC_END",       "BLOCK_SEQ_START",
+    "BLOCK_MAP_START",  "BLOCK_SEQ_END",  "BLOCK_MAP_END", "BLOCK_ENTRY",
+    "FLOW_SEQ_START",   "FLOW_MAP_START", "FLOW_SEQ_END",  "FLOW_MAP_END",
+    "FLOW_MAP_COMPACT", "FLOW_ENTRY",     "KEY",           "VALUE",
+    "ANCHOR",           "ALIAS",          "TAG",           "SCALAR"};
 
 struct Token {
   // enums
@@ -48,7 +49,7 @@ struct Token {
 
   // data
   Token(TYPE type_, const Mark& mark_)
-      : status(VALID), type(type_), mark(mark_), data(0) {}
+      : status(VALID), type(type_), mark(mark_), value{}, params{}, data(0) {}
 
   friend std::ostream& operator<<(std::ostream& out, const Token& token) {
     out << TokenNames[token.type] << std::string(": ") << token.value;
@@ -64,6 +65,6 @@ struct Token {
   std::vector<std::string> params;
   int data;
 };
-}
+}  // namespace YAML
 
 #endif  // TOKEN_H_62B23520_7C8E_11DE_8A39_0800200C9A66
diff --git a/test/regex_test.cpp b/test/regex_test.cpp
index 7589d2e..658db9e 100644
--- a/test/regex_test.cpp
+++ b/test/regex_test.cpp
@@ -1,6 +1,6 @@
-#include "gtest/gtest.h"
 #include "regex_yaml.h"
 #include "stream.h"
+#include "gtest/gtest.h"
 
 using YAML::RegEx;
 using YAML::Stream;
@@ -106,8 +106,8 @@ TEST(RegExTest, OperatorOr) {
     for (int j = i + 1; j < 128; ++j) {
       auto iStr = std::string(1, char(i));
       auto jStr = std::string(1, char(j));
-      RegEx ex1 = RegEx(iStr) || RegEx(jStr);
-      RegEx ex2 = RegEx(jStr) || RegEx(iStr);
+      RegEx ex1 = RegEx(iStr) | RegEx(jStr);
+      RegEx ex2 = RegEx(jStr) | RegEx(iStr);
 
       for (int k = MIN_CHAR; k < 128; ++k) {
         auto str = std::string(1, char(k));
@@ -128,8 +128,8 @@ TEST(RegExTest, OperatorOr) {
 }
 
 TEST(RegExTest, OperatorOrShortCircuits) {
-  RegEx ex1 = RegEx(std::string("aaaa")) || RegEx(std::string("aa"));
-  RegEx ex2 = RegEx(std::string("aa")) || RegEx(std::string("aaaa"));
+  RegEx ex1 = RegEx(std::string("aaaa")) | RegEx(std::string("aa"));
+  RegEx ex2 = RegEx(std::string("aa")) | RegEx(std::string("aaaa"));
 
   EXPECT_TRUE(ex1.Matches(std::string("aaaaa")));
   EXPECT_EQ(4, ex1.Match(std::string("aaaaa")));
@@ -139,13 +139,13 @@ TEST(RegExTest, OperatorOrShortCircuits) {
 }
 
 TEST(RegExTest, OperatorAnd) {
-  RegEx emptySet = RegEx('a') && RegEx();
+  RegEx emptySet = RegEx('a') & RegEx();
   EXPECT_FALSE(emptySet.Matches(std::string("a")));
 }
 
 TEST(RegExTest, OperatorAndShortCircuits) {
-  RegEx ex1 = RegEx(std::string("aaaa")) && RegEx(std::string("aa"));
-  RegEx ex2 = RegEx(std::string("aa")) && RegEx(std::string("aaaa"));
+  RegEx ex1 = RegEx(std::string("aaaa")) & RegEx(std::string("aa"));
+  RegEx ex2 = RegEx(std::string("aa")) & RegEx(std::string("aaaa"));
 
   EXPECT_TRUE(ex1.Matches(std::string("aaaaa")));
   EXPECT_EQ(4, ex1.Match(std::string("aaaaa")));
@@ -174,4 +174,4 @@ TEST(RegExTest, StringOr) {
 
   EXPECT_EQ(1, ex.Match(str));
 }
-}
+}  // namespace