在Qt开发中遇到“error: reference to non-static member function must be called”错误通常表明你尝试以错误的方式引用或调用非静态成员函数。下面我将分点解释这个错误,并提供解决方案。 1. 解释错误信息的含义 这个错误信息意味着你尝试使用非静态成员函数的方式不正确。在C++中,非静态成员函数是依赖于类的实例(...
Qt开发,一行代码报错: reference to non-static member function must be called; did you mean to call it with no arguments? 代码: if(tbxD.toPlainText().trimmed().length==0) { ... } if(tbxM.toPlainText().trimmed().length==0) { ... } if(tbxS.toPlainText().trimmed().length==0)...
Qt error: reference to non-static member function must be called 对应报错函数应设置为静态类成员(如static void… \ static int…) Qt error: invalid use of member in static member function static型函数只能访问static型变量 以上两问题的解释[C++编译报错:invalid use of non-static member function - ...
-Wc++98-compat %select{class template|class template partial|variable template|variable template partial|function template|member function|static data member|member class|member enumeration}0 specialization of %1 outside namespace %2 is incompatible with C++98 -Wc++98-compat reference initialized from ...
equivalent to the non-static overloaded function myObject->disconnect(SIGNAL(mySignal())); Disconnect a specific receiver: disconnect(myObject, 0, myReceiver, 0); equivalent to the non-static overloaded function myObject->disconnect(myReceiver); 0 may be used as a wildcard, meaning "any signa...
(QMetaObject::Call, int, void**)'; serial.o:serial.cpp:(.text+0x45c0): first defined here /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/11/../../../x86_64-linux-gnu/Scrt1.o: in function `_start': (.text+0x1b): undefined reference to `main' collect2: error: ld ...
Copies the regular expressionrxand returns a reference to the copy. The case sensitivity, wildcard, and minimal matching options are also copied. bool QRegExp::operator== ( const QRegExp &rx) const Returns true if this regular expression is equal torx; otherwise returns false. ...
On non-const strings, operator[]() returns a reference to a character that can be used on the left side of an assignment. For example: QString str; str.resize(4); str[0] = QChar('U'); str[1] = QChar('n'); str[2] = QChar(0x10e3); str[3] = QChar(0x03a3); For ...
QGlobalStatic - Used to implement a global static object QHash - Template class that provides a hash-table-based dictionary QHashIterator - Java-style const iterator for QHash and QMultiHash QHistoryState - Means of returning to a previously active substate ...
() << qUtf8Printable(errorString); } } if (ret) { //when loading a library we add a reference to it so that the QLibraryPrivate won't get deleted //this allows to unload the library at a later time libraryUnloadCount.ref(); libraryRefCount.ref(); installCoverageTool(this); } ...