diff --git a/src/libs/languageserverprotocol/lsptypes.h b/src/libs/languageserverprotocol/lsptypes.h
index 21916852c5e..e151e4afa02 100644
--- a/src/libs/languageserverprotocol/lsptypes.h
+++ b/src/libs/languageserverprotocol/lsptypes.h
@@ -152,7 +152,6 @@ class LANGUAGESERVERPROTOCOL_EXPORT Location : public JsonObject
 {
 public:
     using JsonObject::JsonObject;
-    Location &operator=(const Location &) = default;
 
     DocumentUri uri() const { return DocumentUri::fromProtocol(typedValue<QString>(uriKey)); }
     void setUri(const DocumentUri &uri) { insert(uriKey, uri); }
diff --git a/src/libs/languageserverprotocol/messages.h b/src/libs/languageserverprotocol/messages.h
index 840f380ce0d..53f5efbaba7 100644
--- a/src/libs/languageserverprotocol/messages.h
+++ b/src/libs/languageserverprotocol/messages.h
@@ -65,7 +65,6 @@ class LANGUAGESERVERPROTOCOL_EXPORT MessageActionItem : public JsonObject
 {
 public:
     using JsonObject::JsonObject;
-    MessageActionItem &operator=(const MessageActionItem &) = default;
 
     QString title() const { return typedValue<QString>(titleKey); }
     void setTitle(QString title) { insert(titleKey, title); }
diff --git a/src/libs/qmljs/qmljsdocument.h b/src/libs/qmljs/qmljsdocument.h
index df9e426a347..dd7d19764b0 100644
--- a/src/libs/qmljs/qmljsdocument.h
+++ b/src/libs/qmljs/qmljsdocument.h
@@ -170,7 +170,6 @@ public:
     explicit LibraryInfo(const QString &typeInfo);
     explicit LibraryInfo(const QmlDirParser &parser, const QByteArray &fingerprint = QByteArray());
     ~LibraryInfo() = default;
-    LibraryInfo(const LibraryInfo &other) = default;
 
     QByteArray calculateFingerprint() const;
     void updateFingerprint();
diff --git a/src/libs/utils/ansiescapecodehandler.h b/src/libs/utils/ansiescapecodehandler.h
index 4870d593375..2fec51c105c 100644
--- a/src/libs/utils/ansiescapecodehandler.h
+++ b/src/libs/utils/ansiescapecodehandler.h
@@ -34,7 +34,6 @@ namespace Utils {
 class QTCREATOR_UTILS_EXPORT FormattedText {
 public:
     FormattedText() = default;
-    FormattedText(const FormattedText &other) = default;
     FormattedText(const QString &txt, const QTextCharFormat &fmt = QTextCharFormat()) :
         text(txt), format(fmt)
     { }
diff --git a/src/libs/utils/icon.h b/src/libs/utils/icon.h
index d2352be5055..417bbf6c5de 100644
--- a/src/libs/utils/icon.h
+++ b/src/libs/utils/icon.h
@@ -65,8 +65,6 @@ public:
     Icon(std::initializer_list<IconMaskAndColor> args, IconStyleOptions style = ToolBarStyle);
     Icon(const FilePath &imageFileName);
 
-    Icon(const Icon &other) = default;
-
     QIcon icon() const;
     // Same as icon() but without disabled state.
     QPixmap pixmap(QIcon::Mode iconMode = QIcon::Normal) const;
diff --git a/src/libs/utils/set_algorithm.h b/src/libs/utils/set_algorithm.h
index 97e33a047fc..3e79ff87027 100644
--- a/src/libs/utils/set_algorithm.h
+++ b/src/libs/utils/set_algorithm.h
@@ -45,13 +45,6 @@ public:
         : m_callable(&callable)
     {}
 
-    function_output_iterator &operator=(const function_output_iterator &iterator)
-    {
-        m_callable = iterator.m_callable;
-
-        return *this;
-    }
-
     struct helper
     {
         helper(const Callable *callable)
diff --git a/src/plugins/cmakeprojectmanager/configmodel.h b/src/plugins/cmakeprojectmanager/configmodel.h
index 95b1ae383db..3d35f7cdeb9 100644
--- a/src/plugins/cmakeprojectmanager/configmodel.h
+++ b/src/plugins/cmakeprojectmanager/configmodel.h
@@ -122,7 +122,6 @@ private:
     {
     public:
         InternalDataItem(const DataItem &item);
-        InternalDataItem(const InternalDataItem &item) = default;
 
         QString currentValue() const;
 
diff --git a/src/plugins/coreplugin/vcsmanager.cpp b/src/plugins/coreplugin/vcsmanager.cpp
index 5d50f9b56cc..148c776352b 100644
--- a/src/plugins/coreplugin/vcsmanager.cpp
+++ b/src/plugins/coreplugin/vcsmanager.cpp
@@ -68,7 +68,6 @@ public:
         VcsInfo(IVersionControl *vc, const QString &tl) :
             versionControl(vc), topLevel(tl)
         { }
-        VcsInfo(const VcsInfo &other) = default;
 
         bool operator == (const VcsInfo &other) const
         {
diff --git a/src/plugins/qmakeprojectmanager/qmakeparsernodes.h b/src/plugins/qmakeprojectmanager/qmakeparsernodes.h
index c463be7ba26..3f5b30d3e58 100644
--- a/src/plugins/qmakeprojectmanager/qmakeparsernodes.h
+++ b/src/plugins/qmakeprojectmanager/qmakeparsernodes.h
@@ -276,7 +276,6 @@ public:
     }
 
     TargetInformation() = default;
-    TargetInformation(const TargetInformation &other) = default;
 };
 
 class QMAKEPROJECTMANAGER_EXPORT InstallsItem {