How to access QStringList present in 1 class in all other the remaning classes?

learnist

i have a QStringList in 1 class

completer.cpp

#include "completer.h"

Completer::Completer(QObject *parent)
    : QObject(parent)
{
}
Completer::~Completer()
{
}

completer.h

#pragma once
#include <QObject>

class Completer : public QObject
{
    Q_OBJECT
public:
    Completer(QObject *parent);
    ~Completer();
    QStringList global_completer_list;
};

i also have 3 other Dialog classes, all of the dialogs contain QLineedits , one of the class is named as car.h and car.cpp, so , my question is how do i create an object of completer class and access the QStringlist of completer class in all another classes, i am having syntax problems.

JonB

@learnist
Not sure what your problem is, as this is just C++, and has nothing to do with QStringList, or even Qt:

#include "completer.h"
...
Completer *completer = new Completer;
...
qDebug() << completer->global_completer_list;

learnist

@JonB Agreed , not Qt , but more of OOPS concepts problem, i want to know how can i access the QStringList in my new class (a.cpp and a.h), where do i place your code, in my .h or .cpp ?

J.Hilk

@learnist the fact that you have a public member variable named global_completer_list screams spaghetti code with global variables to me!

You should probably rethink and redesign your application concept!

learnist

@JonB i get the error no default constructor exists for class "Completer" in

Completer *completer = new Completer;

J.Hilk

@learnist
either

Completer(QObject *parent = nullptr);

or

Completer *completer = new Completer(nullptr);