cppcheck/test/cfg/qt.cpp

324 lines
9.1 KiB
C++

// 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 <QObject>
#include <QString>
#include <QVector>
#include <QtPlugin>
#include <QFile>
#include <cstdio>
#include <QCoreApplication>
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 iterators2
for (QString::iterator it = qstring1.begin(); it != qstring2.end(); ++it)
{}
QString::iterator it = qstring1.begin();
// cppcheck-suppress returnDanglingLifetime
return it;
}
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<int> 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<QString> qstringList1{"one", "two"};
(void)qstringList1[1];
QList<QString> qstringList2 = {"one", "two"};
(void)qstringList2[1];
qstringList2.clear();
// TODO: cppcheck-suppress containerOutOfBounds #9243
(void)qstringList2[1];
QList<QString> qstringList3;
qstringList3 << "one" << "two";
// FIXME: The following containerOutOfBounds suppression is wrong #9242
// Please remove the suppression as soon as this is fixed
// cppcheck-suppress containerOutOfBounds
(void)qstringList3[1];
// 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<QString> qstringList4;
// cppcheck-suppress containerOutOfBounds
(void)qstringList4[0];
qstringList4.append("a");
(void)qstringList4[0];
qstringList4.clear();
// TODO: cppcheck-suppress containerOutOfBounds #9243
(void)qstringList4[0];
}
QList<int>::iterator QList3()
{
QList<int> qlist1;
QList<int> qlist2;
// cppcheck-suppress iterators2
for (QList<int>::iterator it = qlist1.begin(); it != qlist2.end(); ++it)
{}
QList<int>::iterator it = qlist1.begin();
// TODO: 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";
// FIXME: The following containerOutOfBounds suppression is wrong #9242
// Please remove the suppression as soon as this is fixed
// cppcheck-suppress containerOutOfBounds
(void)qstringlist3[1];
// 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 iterators2
for (QStringList::iterator it = qstringlist1.begin(); it != qstringlist2.end(); ++it)
{}
QStringList::iterator it = qstringlist1.begin();
// cppcheck-suppress returnDanglingLifetime
return it;
}
void QVector1(QVector<int> 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<QString> qstringVector1{"one", "two"};
(void)qstringVector1[1];
QVector<QString> qstringVector2 = {"one", "two"};
(void)qstringVector2[1];
QVector<QString> qstringVector3;
qstringVector3 << "one" << "two";
// FIXME: The following containerOutOfBounds suppression is wrong #9242
// Please remove the suppression as soon as this is fixed
// cppcheck-suppress containerOutOfBounds
(void)qstringVector3[1];
// 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<int>::iterator QVector2()
{
QVector<int> qvector1;
QVector<int> qvector2;
// cppcheck-suppress iterators2
for (QVector<int>::iterator it = qvector1.begin(); it != qvector2.end(); ++it)
{}
QVector<int>::iterator it = qvector1.begin();
// TODO cppcheck-suppress returnDanglingLifetime
return it;
}
// 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()
{
// TODO: remove suppression when #9002 is fixed
// cppcheck-suppress checkLibraryFunction
QString str = MacroTest2::tr("hello");
QByteArray ba = str.toLatin1();
printf(ba.data());
#ifndef QT_NO_DEPRECATED
// TODO: remove suppression when #9002 is fixed
// cppcheck-suppress checkLibraryFunction
str = MacroTest2::trUtf8("test2");
ba = str.toLatin1();
printf(ba.data());
#endif
}
void validCode(int * pIntPtr)
{
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"));
}
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;
}
}