Enum Sequence

Sebastian

Dear All,
suppose I have Qflags. I want to know in which sequence the enum value is added.for eg.
class MyClass: public QObject
{
Q_OBJECT

public:
explicit MyClass(QObject *parent = 0);
~MyClass();

enum Sequence{
    one  = 1,
    two = 2,
    three = 3
 
};
Q_DECLARE_FLAGS(NumSequence, Sequence)

NumSequence m_Flag;
void setFlag(NumSequence &value)
 {
             m_Flag= value;
 }

};
Q_DECLARE_OPERATORS_FOR_FLAGS(MyClass::NumSequence)

Eg: MyClass myClassObj;
myClassObj.setFlag(MyClass::three || MyClass::one );

In this example my code should give me that MyClass::three was the first value.

SGaist

Hi and welcome to devnet,

Your enum declaration is wrong if you want to create flags from it.

enum Sequence{
    one  = 0x01,
    two = 0x02,
    three = 0x04
};

3 being 11 in base 2, it would been that you have both one and two set

Sebastian

@Sebastian said:

nt to know in which sequence the enum value is added.for eg.
class MyClass: public QObject

thanks for your reply.
but i want to know the sequence of enum is added.for the above example how should i know that MyClass::three was the first value was the first value of mine.........and after that MyClass::one was the second value ...???(I want to know the sequence).

thanks again @SGaist

SGaist

Then you're using the wrong tool, flags don't have any notion of input order. If you want a FIFO behavior you should rather use a container like QQueue