// Test library configuration for qt.cfg // // Usage: // $ cppcheck --check-library --enable=information --inconclusive --error-exitcode=1 --suppress=missingIncludeSystem --inline-suppr --library=qt test/cfg/qt.cpp // => // No warnings about bad library configuration, unmatched suppressions, etc. exitcode=0 // #include #include #include #include #include #include #include #include #include #include #include #include void QString1(QString s) { for (int i = 0; i <= s.size(); ++i) { // cppcheck-suppress stlOutOfBounds s[i] = 'x'; } } int QString2() { QString s; // FIXME cppcheck-suppress reademptycontainer return s.size(); } QString::iterator QString3() { QString qstring1; QString qstring2; // cppcheck-suppress mismatchingContainers for (QString::iterator it = qstring1.begin(); it != qstring2.end(); ++it) {} QString::iterator it = qstring1.begin(); // cppcheck-suppress returnDanglingLifetime return it; } void QString4() { // cppcheck-suppress unusedVariable QString qs; } void QByteArray1(QByteArray byteArrayArg) { for (int i = 0; i <= byteArrayArg.size(); ++i) { // cppcheck-suppress stlOutOfBounds byteArrayArg[i] = 'x'; } // cppcheck-suppress containerOutOfBoundsIndexExpression byteArrayArg[byteArrayArg.length()] = 'a'; // cppcheck-suppress containerOutOfBoundsIndexExpression byteArrayArg[byteArrayArg.count()] = 'b'; // cppcheck-suppress containerOutOfBoundsIndexExpression printf("val: %c\n", byteArrayArg[byteArrayArg.size()]); QByteArray byteArray1{'a', 'b'}; (void)byteArray1[1]; // cppcheck-suppress ignoredReturnValue byteArray1.at(1); } void QList1(QList intListArg) { for (int i = 0; i <= intListArg.size(); ++i) { // cppcheck-suppress stlOutOfBounds intListArg[i] = 1; } // cppcheck-suppress containerOutOfBoundsIndexExpression intListArg[intListArg.length()] = 5; // cppcheck-suppress containerOutOfBoundsIndexExpression intListArg[intListArg.count()] = 10; // cppcheck-suppress containerOutOfBoundsIndexExpression printf("val: %d\n", intListArg[intListArg.size()]); QList qstringList1{"one", "two"}; (void)qstringList1[1]; QList qstringList2 = {"one", "two"}; (void)qstringList2[1]; qstringList2.clear(); // cppcheck-suppress containerOutOfBounds (void)qstringList2[1]; QList qstringList3; qstringList3 << "one" << "two"; (void)qstringList3[1]; // FIXME: The following should have a containerOutOfBounds suppression #9242 (void)qstringList3[3]; // cppcheck-suppress ignoredReturnValue qstringList3.startsWith("one"); // cppcheck-suppress ignoredReturnValue qstringList3.endsWith("one"); // cppcheck-suppress ignoredReturnValue qstringList3.count(); // cppcheck-suppress ignoredReturnValue qstringList3.length(); // cppcheck-suppress ignoredReturnValue qstringList3.size(); // cppcheck-suppress ignoredReturnValue qstringList3.at(5); // cppcheck-suppress invalidFunctionArg (void)qstringList3.at(-5); QList qstringList4; // cppcheck-suppress containerOutOfBounds (void)qstringList4[0]; qstringList4.append("a"); (void)qstringList4[0]; qstringList4.clear(); // cppcheck-suppress containerOutOfBounds (void)qstringList4[0]; } QList QList2() { // #10556 QList v; for (int i = 0; i < 4; ++i) { v.append(i); (void)v.at(i); } return v; } QList::iterator QList3() { QList qlist1; QList qlist2; // cppcheck-suppress mismatchingContainers for (QList::iterator it = qlist1.begin(); it != qlist2.end(); ++it) {} QList::iterator it = qlist1.begin(); // cppcheck-suppress returnDanglingLifetime return it; } void QLinkedList1() { // cppcheck-suppress unreadVariable QLinkedList qstringLinkedList1{"one", "two"}; QLinkedList qstringLinkedList2 = {"one", "two"}; qstringLinkedList2.clear(); QLinkedList qstringLinkedList3; qstringLinkedList3 << "one" << "two"; // cppcheck-suppress ignoredReturnValue qstringLinkedList3.startsWith("one"); // cppcheck-suppress ignoredReturnValue qstringLinkedList3.endsWith("one"); // cppcheck-suppress ignoredReturnValue qstringLinkedList3.count(); // cppcheck-suppress ignoredReturnValue qstringLinkedList3.size(); QLinkedList qstringLinkedList4; qstringLinkedList4.append("a"); qstringLinkedList4.clear(); } QLinkedList::iterator QLinkedList3() { QLinkedList intQLinkedList1; QLinkedList intQLinkedList2; // cppcheck-suppress mismatchingContainers for (QLinkedList::iterator it = intQLinkedList1.begin(); it != intQLinkedList2.end(); ++it) {} QLinkedList::iterator it = intQLinkedList1.begin(); // cppcheck-suppress returnDanglingLifetime return it; } void QStringList1(QStringList stringlistArg) { for (int i = 0; i <= stringlistArg.size(); ++i) { // cppcheck-suppress stlOutOfBounds stringlistArg[i] = "abc"; } // cppcheck-suppress containerOutOfBoundsIndexExpression stringlistArg[stringlistArg.length()] = "ab"; stringlistArg[stringlistArg.length() - 1] = "ab"; // could be valid // cppcheck-suppress containerOutOfBoundsIndexExpression stringlistArg[stringlistArg.count()] = "12"; stringlistArg[stringlistArg.count() - 1] = "12"; // could be valid // cppcheck-suppress containerOutOfBoundsIndexExpression (void)stringlistArg[stringlistArg.size()]; (void)stringlistArg[stringlistArg.size() - 1]; // could be valid QStringList qstringlist1{"one", "two"}; (void)qstringlist1[1]; QStringList qstringlist2 = {"one", "two"}; (void)qstringlist2[1]; QStringList qstringlist3; qstringlist3 << "one" << "two"; (void)qstringlist3[1]; // FIXME: The following should have a containerOutOfBounds suppression #9242 (void)qstringlist3[3]; // cppcheck-suppress ignoredReturnValue qstringlist3.startsWith("one"); // cppcheck-suppress ignoredReturnValue qstringlist3.endsWith("one"); // cppcheck-suppress ignoredReturnValue qstringlist3.count(); // cppcheck-suppress ignoredReturnValue qstringlist3.length(); // cppcheck-suppress ignoredReturnValue qstringlist3.size(); // cppcheck-suppress ignoredReturnValue qstringlist3.at(5); // cppcheck-suppress invalidFunctionArg (void)qstringlist3.at(-5); } QStringList::iterator QStringList2() { QStringList qstringlist1; QStringList qstringlist2; // cppcheck-suppress mismatchingContainers for (QStringList::iterator it = qstringlist1.begin(); it != qstringlist2.end(); ++it) {} QStringList::iterator it = qstringlist1.begin(); // cppcheck-suppress returnDanglingLifetime return it; } void QVector1(QVector intVectorArg) { for (int i = 0; i <= intVectorArg.size(); ++i) { // cppcheck-suppress stlOutOfBounds intVectorArg[i] = 1; } // cppcheck-suppress containerOutOfBoundsIndexExpression intVectorArg[intVectorArg.length()] = 5; // cppcheck-suppress containerOutOfBoundsIndexExpression intVectorArg[intVectorArg.count()] = 10; // cppcheck-suppress containerOutOfBoundsIndexExpression printf("val: %d\n", intVectorArg[intVectorArg.size()]); QVector qstringVector1{"one", "two"}; (void)qstringVector1[1]; QVector qstringVector2 = {"one", "two"}; (void)qstringVector2[1]; QVector qstringVector3; qstringVector3 << "one" << "two"; (void)qstringVector3[1]; // FIXME: The following should have a containerOutOfBounds suppression #9242 (void)qstringVector3[3]; // cppcheck-suppress ignoredReturnValue qstringVector3.startsWith("one"); // cppcheck-suppress ignoredReturnValue qstringVector3.endsWith("one"); // cppcheck-suppress ignoredReturnValue qstringVector3.count(); // cppcheck-suppress ignoredReturnValue qstringVector3.length(); // cppcheck-suppress ignoredReturnValue qstringVector3.size(); // cppcheck-suppress ignoredReturnValue qstringVector3.at(5); // cppcheck-suppress invalidFunctionArg (void)qstringVector3.at(-5); } QVector::iterator QVector2() { QVector qvector1; QVector qvector2; // cppcheck-suppress mismatchingContainers for (QVector::iterator it = qvector1.begin(); it != qvector2.end(); ++it) {} QVector::iterator it = qvector1.begin(); // cppcheck-suppress returnDanglingLifetime return it; } void duplicateExpression_QString_Compare(QString style) //#8723 { // cppcheck-suppress duplicateExpression if (style.compare( "x", Qt::CaseInsensitive ) == 0 || style.compare( "x", Qt::CaseInsensitive ) == 0) {} } void QStack1(QStack intStackArg) { for (int i = 0; i <= intStackArg.size(); ++i) { // cppcheck-suppress stlOutOfBounds intStackArg[i] = 1; } // cppcheck-suppress containerOutOfBoundsIndexExpression intStackArg[intStackArg.length()] = 5; // cppcheck-suppress containerOutOfBoundsIndexExpression intStackArg[intStackArg.count()] = 10; // cppcheck-suppress containerOutOfBoundsIndexExpression printf("val: %d\n", intStackArg[intStackArg.size()]); QStack qstringStack1; qstringStack1.push("one"); qstringStack1.push("two"); (void)qstringStack1[1]; QStack qstringStack2; qstringStack2 << "one" << "two"; (void)qstringStack2[1]; // FIXME: The following should have a containerOutOfBounds suppression #9242 (void)qstringStack2[3]; // cppcheck-suppress ignoredReturnValue qstringStack2.startsWith("one"); // cppcheck-suppress ignoredReturnValue qstringStack2.endsWith("one"); // cppcheck-suppress ignoredReturnValue qstringStack2.count(); // cppcheck-suppress ignoredReturnValue qstringStack2.length(); // cppcheck-suppress ignoredReturnValue qstringStack2.size(); // cppcheck-suppress ignoredReturnValue qstringStack2.at(5); // cppcheck-suppress invalidFunctionArg (void)qstringStack2.at(-5); } QStack::iterator QStack2() { QStack qstack1; QStack qstack2; // cppcheck-suppress mismatchingContainers for (QStack::iterator it = qstack1.begin(); it != qstack2.end(); ++it) {} QStack::iterator it = qstack1.begin(); // cppcheck-suppress returnDanglingLifetime return it; } void QStack3() { QStack intStack; intStack.push(1); // cppcheck-suppress ignoredReturnValue intStack.top(); intStack.pop(); } // Verify that Qt macros do not result in syntax errors, false positives or other issues. class MacroTest1 : public QObject { Q_OBJECT Q_PLUGIN_METADATA(IID "com.foo.bar" FILE "test.json") public: explicit MacroTest1(QObject *parent = 0); ~MacroTest1(); }; class MacroTest2 { Q_DECLARE_TR_FUNCTIONS(MacroTest2) public: MacroTest2(); ~MacroTest2(); }; void MacroTest2_test() { QString str = MacroTest2::tr("hello"); QByteArray ba = str.toLatin1(); printf(ba.data()); #ifndef QT_NO_DEPRECATED str = MacroTest2::trUtf8("test2"); ba = str.toLatin1(); printf(ba.data()); #endif } void validCode(int * pIntPtr, QString & qstrArg) { if (QFile::exists("test")) {} if (pIntPtr != Q_NULLPTR) { *pIntPtr = 5; } if (pIntPtr && *pIntPtr == 1) { forever { } } else if (pIntPtr && *pIntPtr == 2) { Q_FOREVER {} } if (Q_LIKELY(pIntPtr)) {} if (Q_UNLIKELY(!pIntPtr)) {} printf(QT_TR_NOOP("Hi")); Q_DECLARE_LOGGING_CATEGORY(logging_category_test); QT_FORWARD_DECLARE_CLASS(forwardDeclaredClass); QT_FORWARD_DECLARE_STRUCT(forwardDeclaredStruct); //#9650 QString qstr1(qstrArg); if (qstr1.length() == 1) {} else { qstr1.chop(1); if (qstr1.length() == 1) {} } if (qstr1.length() == 1) {} else { qstr1.remove(1); if (qstr1.length() == 1) {} } } void ignoredReturnValue() { // cppcheck-suppress ignoredReturnValue QFile::exists("test"); QFile file1("test"); // cppcheck-suppress ignoredReturnValue file1.exists(); } void nullPointer(int * pIntPtr) { int * pNullPtr = Q_NULLPTR; // cppcheck-suppress nullPointer *pNullPtr = 1; if (pIntPtr != Q_NULLPTR) { *pIntPtr = 2; } else { // cppcheck-suppress nullPointerRedundantCheck *pIntPtr = 3; } }