fixed some clang-tidy warnings (#3080)

.clang-tidy

@@ -1,5 +1,5 @@
 ---
-Checks:          '*,-abseil-*,-altera-*,-android-*,-cert-*,-cppcoreguidelines-*,-fuchsia-*,-google-*,-hicpp-*,-linuxkernel-*,-llvm-*,-llvmlibc-*,-mpi-*,-objc-*,-openmp-*,-zircon-*,-readability-braces-around-statements,-readability-magic-numbers,-bugprone-macro-parentheses,-readability-isolate-declaration,-readability-function-size,-modernize-use-trailing-return-type,-readability-implicit-bool-conversion,-readability-uppercase-literal-suffix,-modernize-use-auto,-readability-else-after-return,-modernize-use-default-member-init,-readability-named-parameter,-readability-redundant-member-init,-performance-faster-string-find,-modernize-avoid-c-arrays,-modernize-use-equals-default,-readability-container-size-empty,-readability-simplify-boolean-expr,-modernize-use-override,-modernize-pass-by-value,-bugprone-branch-clone,-bugprone-narrowing-conversions,-modernize-raw-string-literal,-readability-convert-member-functions-to-static,-modernize-loop-convert,-misc-unused-using-decls,-modernize-use-emplace,-readability-const-return-type,-performance-unnecessary-value-param,-modernize-return-braced-init-list,-performance-inefficient-string-concatenation,-misc-throw-by-value-catch-by-reference,-readability-avoid-const-params-in-decls,-readability-non-const-parameter,-misc-non-private-member-variables-in-classes,-bugprone-suspicious-string-compare,-readability-misleading-indentation,-clang-analyzer-*,-bugprone-signed-char-misuse,-readability-make-member-function-const,-misc-no-recursion,-readability-use-anyofallof,-performance-no-automatic-move,-bugprone-suspicious-include,-modernize-replace-random-shuffle,-readability-function-cognitive-complexity,-readability-redundant-access-specifiers,-modernize-use-equals-delete,-performance-noexcept-move-constructor,-concurrency-mt-unsafe,-bugprone-easily-swappable-parameters,-readability-suspicious-call-argument'
+Checks:          '*,-abseil-*,-altera-*,-android-*,-cert-*,-cppcoreguidelines-*,-fuchsia-*,-google-*,-hicpp-*,-linuxkernel-*,-llvm-*,-llvmlibc-*,-mpi-*,-objc-*,-openmp-*,-zircon-*,-readability-braces-around-statements,-readability-magic-numbers,-bugprone-macro-parentheses,-readability-isolate-declaration,-readability-function-size,-modernize-use-trailing-return-type,-readability-implicit-bool-conversion,-readability-uppercase-literal-suffix,-modernize-use-auto,-readability-else-after-return,-modernize-use-default-member-init,-readability-named-parameter,-readability-redundant-member-init,-performance-faster-string-find,-modernize-avoid-c-arrays,-modernize-use-equals-default,-readability-container-size-empty,-readability-simplify-boolean-expr,-modernize-use-override,-modernize-pass-by-value,-bugprone-branch-clone,-bugprone-narrowing-conversions,-modernize-raw-string-literal,-readability-convert-member-functions-to-static,-modernize-loop-convert,-misc-unused-using-decls,-modernize-use-emplace,-readability-const-return-type,-performance-unnecessary-value-param,-modernize-return-braced-init-list,-performance-inefficient-string-concatenation,-misc-throw-by-value-catch-by-reference,-readability-avoid-const-params-in-decls,-readability-non-const-parameter,-misc-non-private-member-variables-in-classes,-bugprone-suspicious-string-compare,-clang-analyzer-*,-bugprone-signed-char-misuse,-readability-make-member-function-const,-misc-no-recursion,-readability-use-anyofallof,-performance-no-automatic-move,-bugprone-suspicious-include,-modernize-replace-random-shuffle,-readability-function-cognitive-complexity,-readability-redundant-access-specifiers,-modernize-use-equals-delete,-performance-noexcept-move-constructor,-concurrency-mt-unsafe,-bugprone-easily-swappable-parameters,-readability-suspicious-call-argument'
 WarningsAsErrors: '*'
 CheckOptions:
   - key:             misc-non-private-member-variables-in-classes.IgnoreClassesWithAllMemberVariablesBeingPublic

.gitignore

@@ -32,6 +32,7 @@ tools/extracttests
 *.suo
 *.user
 .vs/
+UpgradeLog*.htm
 
 # VS build folders
 bin/

gui/cppchecklibrarydata.cpp

@@ -34,7 +34,7 @@ static std::string unhandledElement(const QXmlStreamReader &xmlReader)
     throw std::runtime_error(QObject::tr("line %1: Unhandled element %2").arg(xmlReader.lineNumber()).arg(xmlReader.name().toString()).toStdString());
 }
 
-static std::string mandatoryAttibuteMissing(const QXmlStreamReader &xmlReader, QString attributeName)
+static std::string mandatoryAttibuteMissing(const QXmlStreamReader &xmlReader, const QString& attributeName)
 {
     throw std::runtime_error(QObject::tr("line %1: Mandatory attribute '%2' missing in '%3'")
                              .arg(xmlReader.lineNumber())

lib/path.cpp

@@ -72,7 +72,7 @@ std::string Path::fromNativeSeparators(std::string path)
 
 std::string Path::simplifyPath(std::string originalPath)
 {
-    return simplecpp::simplifyPath(originalPath);
+    return simplecpp::simplifyPath(std::move(originalPath));
 }
 
 std::string Path::getPathFromFilename(const std::string &filename)

lib/symboldatabase.cpp

@@ -1310,20 +1310,20 @@ void SymbolDatabase::createSymbolDatabaseSetVariablePointers()
 void SymbolDatabase::createSymbolDatabaseEnums()
 {
     // fill in enumerators in enum
-    for (std::list<Scope>::iterator it = scopeList.begin(); it != scopeList.end(); ++it) {
+    for (Scope &scope : scopeList) {
-        if (it->type != Scope::eEnum)
+        if (scope.type != Scope::eEnum)
             continue;
 
         // add enumerators to enumerator tokens
-        for (Enumerator & i : it->enumeratorList)
+        for (Enumerator & i : scope.enumeratorList)
             const_cast<Token *>(i.name)->enumerator(&i);
     }
 
-    for (std::list<Scope>::iterator it = scopeList.begin(); it != scopeList.end(); ++it) {
+    for (Scope &scope : scopeList) {
-        if (it->type != Scope::eEnum)
+        if (scope.type != Scope::eEnum)
             continue;
 
-        for (Enumerator & enumerator : it->enumeratorList) {
+        for (Enumerator & enumerator : scope.enumeratorList) {
             // look for initialization tokens that can be converted to enumerators and convert them
             if (enumerator.start) {
                 if (!enumerator.end)

lib/tokenlist.cpp

@@ -211,7 +211,7 @@ void TokenList::deleteTokens(Token *tok)
 // add a token.
 //---------------------------------------------------------------------------
 
-void TokenList::addtoken(std::string str, const nonneg int lineno, const nonneg int column, const nonneg int fileno, bool split)
+void TokenList::addtoken(const std::string& str, const nonneg int lineno, const nonneg int column, const nonneg int fileno, bool split)
 {
     if (str.empty())
         return;
@@ -244,7 +244,7 @@ void TokenList::addtoken(std::string str, const nonneg int lineno, const nonneg
     mTokensFrontBack.back->fileIndex(fileno);
 }
 
-void TokenList::addtoken(std::string str, const Token *locationTok)
+void TokenList::addtoken(const std::string& str, const Token *locationTok)
 {
     if (str.empty())
         return;

lib/tokenlist.h

@@ -70,8 +70,8 @@ public:
      */
     static void deleteTokens(Token *tok);
 
-    void addtoken(std::string str, const nonneg int lineno, const nonneg int column, const nonneg int fileno, bool split = false);
+    void addtoken(const std::string& str, const nonneg int lineno, const nonneg int column, const nonneg int fileno, bool split = false);
-    void addtoken(std::string str, const Token *locationTok);
+    void addtoken(const std::string& str, const Token *locationTok);
 
     void addtoken(const Token *tok, const nonneg int lineno, const nonneg int column, const nonneg int fileno);
     void addtoken(const Token *tok, const Token *locationTok);

lib/valueflow.cpp

@@ -1807,7 +1807,7 @@ static void valueFlowGlobalStaticVar(TokenList *tokenList, const Settings *setti
 static Analyzer::Result valueFlowForward(Token* startToken,
                                          const Token* endToken,
                                          const Token* exprTok,
-                                         std::list<ValueFlow::Value> values,
+                                         const std::list<ValueFlow::Value>& values,
                                          TokenList* const tokenlist,
                                          const Settings* settings);
 
@@ -1815,7 +1815,7 @@ static void valueFlowReverse(TokenList* tokenlist,
                              Token* tok,
                              const Token* const varToken,
                              ValueFlow::Value val,
-                             ValueFlow::Value val2,
+                             const ValueFlow::Value& val2,
                              ErrorLogger* errorLogger,
                              const Settings* settings);
 
@@ -3026,7 +3026,7 @@ ValuePtr<Analyzer> makeAnalyzer(const Token* exprTok, ValueFlow::Value value, co
 static Analyzer::Result valueFlowForward(Token* startToken,
                                          const Token* endToken,
                                          const Token* exprTok,
-                                         std::list<ValueFlow::Value> values,
+                                         const std::list<ValueFlow::Value>& values,
                                          TokenList* const tokenlist,
                                          const Settings* settings)
 {
@@ -3067,7 +3067,7 @@ static void valueFlowReverse(TokenList* tokenlist,
                              Token* tok,
                              const Token* const varToken,
                              ValueFlow::Value val,
-                             ValueFlow::Value val2,
+                             const ValueFlow::Value& val2,
                              ErrorLogger* /*errorLogger*/,
                              const Settings* settings)
 {

tools/triage/mainwindow.cpp

@@ -147,7 +147,7 @@ void MainWindow::refreshResults()
     filter(ui->version->currentText());
 }
 
-void MainWindow::filter(QString filter)
+void MainWindow::filter(const QString& filter)
 {
     QStringList allErrors;
 

tools/triage/mainwindow.h

@@ -42,7 +42,7 @@ public:
 public slots:
     void loadFile();
     void loadFromClipboard();
-    void filter(QString filter);
+    void filter(const QString& filter);
     void showResult(QListWidgetItem *item);
     void refreshResults();
     void fileTreeFilter(const QString &str);