报错passing as 'this' argument discards qualifiers [-fpermissive]的 之前按要求该程序时的报错。 当时有要求把类里的一个函数设成const,然后我就在函数名后面加上了const。运行后报错 passing as 'this' argument discards qualifiers [-fpermissive] 上网查资料后发现是因为const函数里有调用非const的函数,所以会...
C++编程常见问题—error: passing 'const std::map<>]' discards qualifiers或pass-by-reference-to-const-map导致的“d 产生问题的场景: int func(const map<int, string> &aMap) { 1. string value = amap[0]; } 1. 或者 int Test::func()const { string value = amap[0]; //amap是Test类的成...
解决方法就是将getId和getName方法声明为const成员,即在函数末尾加上const关键字。
C++编程常见问题—error: passing 'const std::map<>]' discards qualifiers或pass-by-reference-to-const-map导致的“d } 解决办法有两个:
error: passing 'const QString' as 'this' argument of 'QString& QString::operator=(char)' discards qualifiers [-fpermissive] dic.at(i) = char(i); The full code that I am trying to run is this: QVector <QString> dic ( 256 ); for(int i = 0; i < 256; i++) { dic.at(...
3、 warning: assignment discards qualifiers from pointer target type 解释:赋值时,取消了右值的限定。 4、 warning: passing argument 1 of ‘send’ makes pointer from integer without a cast 解释:函数send的第一个integer型参数没有强制转换为pointer型 ...
G:\sourceCode\constTest\constTest\main.cpp|23|error: passing 'const Point3d' as 'this' argument of 'float Point3d::GetX()' discards qualifiers| discards qualifiers的意思是丢弃了限定符。可以这么理解,pd.GetX()操作时,由于pd是const对象,所以认为调用的GetX()是这样的: ...
For a takeover operator task, the NetView program calls DSIEX12 as mentioned above. For this type of task, DSIEX12 is called mainly to validate the operator ID and password. When the takeover processing completes, the task for the session that is being taken over is the task used for ...
prog.cpp:7:12: note: passing'const PairHash<int, int>*'as'this'argument discards qualifiers In file included from /usr/include/c++/5/bits/move.h:57:0, from /usr/include/c++/5/bits/stl_pair.h:59, from /usr/include/c++/5/utility:70, ...
输出: passing 'const Test' as 'this' argument of 'int Test::getValue()' discards qualifiers 让我们看另一个例子: 输出:Hello world I'm Rancho Baba Inside display() Function 以上。 每天学点小知识,希望对你有帮助~ 另外如果你想更好的提升你的编程能力,学好C语言C++编程!弯道超车,快人一步!笔者...