passing values Working on Debug mode and doesn't on release mode!

Proton Phoenix

hi ~~

registeracc *registeraccount; // the problem is here sure! it works on debug but not on release mode  !~
  connect(ui->statuslineedit,SIGNAL(textChanged(QString)),registeraccount,SLOT(recieveacco(QString)));

void registeracc::recieveacco(QString recieve){

    ch = recieve;
    qDebug()<<ch;
      if(recieve=="yes"){

          ui->statusregister->setText("  you accepted the rules   ");
          ui->licenceagrement->setChecked(true);
      }
      if(recieve=="no"){

          ui->licenceagrement->setChecked(false);
      }
      if(ui->licenceagrement->isChecked()){
          ui->registerdatabutton_2->setEnabled(true);

      }else{
    ui->statusregister->setText("  you didn't accept software rules");
    ui->registerdatabutton_2->setDisabled(true);
    QTimer timer2;
    timer2.singleShot(3000, this, SLOT(cleartext()));
    timer2.start();
    timer2.stop();
    }
}

is there any solution !~~?
how can i initialize without = new ....
and the important thing ,, everything work smoothly on debug mode!~
the error on release mode is ~
QObject::connect: Cannot connect QLineEdit::textChanged(QString) to (nullptr)::recieveacco(QString)

J.Hilk

@Proton-Phoenix said in passing values Working on Debug mode and doesn't on release mode!:

registeracc *registeraccount;

thats a floating pointer not a pointer to a vaild instance, of course the connect fails

im surpised it worked in debug at all, luck I guess

Proton Phoenix

@J-Hilk
yep it works on debug mode .. not only this , i have many floating pointers on my test software and all of it works on debug mode ... but doesn't on release mode~!
iif i write it like this ... registeracc *registeraccount= new registeracc();
it will work but i can't see the changes because it will show the changes on another object of registeracc ... ~~~ is there any solution to initialize registeracc ~?
i want it to connect with the same already openned form not new one

JonB

@Proton-Phoenix
Forget about apparent differences between debug vs release builds. You need to understand the basics of C++ instances.

Proton Phoenix

okay bro Thank you so much i will try to understand more about c++ instances <3

JonB

@Proton-Phoenix
Nicely, you really do, because without understanding instances you won't get far in Qt or OO programming. It's worth the time to understand.

Proton Phoenix

@JonB said in passing values Working on Debug mode and doesn't on release mode!:

@Proton-Phoenix
Nicely, you really do, because without understanding instances you won't get far in Qt or OO programming. It's worth the time to understand.

Thank you bro <3 i am learning programming from creating softwares ... that's why a lot of basics i didn't understand yet .. but i need to to continue the road <3
but really thank you guys ...
you could give me the solution but you want me to learn <3
As an old Chinese saying goes, it is better to teach one the skill of fishing than to offer him fish.
really thank you guys many time <3