C++ Std::vector confusion

Question

I try to .push_back() a new obj instance of a class into a vector, but it throws an error saying "attempting to reference a deleted function". Could anyone help me out?

Answer 1

@NicoLoos is right. The correct function is typing is ".push_back(object)"
*************

MyClass object;
std::vector<MyClass> myVector;

myVector.push_back(object);

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This is how it would be done, in a very basic way. Hope this helps and happy coding!

Answer 2

Ohhhhh I think what is happening is that you create a local variable of type Projectiles somewhere, and then the scope for that object doesn't include your else if statement; this is just the assumption I'm making based on the error you received. Does that make sense? For an example:

void makeProjectile() {
Projectiles projobj;
} // scope of projobj ends here

else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Space)) {
projectilesvector.push_back(projobj); // doesn't recognize projobj because it has...
} // ...destructed above.

Let me know if that's what is happening in your code. Maybe more of your code could help, like a link to a playground, even if it won't run.

Answer 3

i guess the correct writing is ".push_back()"...

Answer 4

yeah I made the mistake when writing the question, I used the correct syntax in my app

Answer 5

could you paste the code or at least a snippet Plesse?

Answer 6

Projectiles projobj;
std::vector<Projectiles> projectilesvector;

*gap*

else if (sf::Keyboard::isKeyPressed(sf::Keyboard::Space)) {

projectilesvector.push_back(projobj);

}

Answer 7

I managed to resolve it. I had to create an overloaded constructor as the default constructor would be destroyed once I was out of scope, and when actually creating the objects. I'll provide some of the code later on if anyone requires it