Immutable QList

diredko

Hello everyone,
I wonder if there is a way to get immutable list from regular QList. A fail-safe list is better but I would appreciate any suggestions.
Thanks in advance)

kshegunov

@diredko
Hello.

I wonder if there is a way to get immutable list from regular QList.

Is that what you're after?

QList<int> mutableList;
const QList<int> & immutableList = mutableList;

A fail-safe list is better

What do you mean by fail-safe list?

diredko

Thanks for your reply)
I'd like to provide some clarifications:
By saying "immutable" I meant that after some elements are added to this list, its content cannot be modified - add, remove and insert operations are prohibited or just won't take any effect.
By saying "fails-safe" I meant that whenever such an operation is called on immutable list no application failure will arise and no exception will be thrown.

kshegunov

@diredko
Hello,
Both your requirements are met by the const keyword in C++. A const object can't be modified and prevents you from calling non-const functions. What is it that you're trying to achieve?

Kind regards.

diredko

Thanks for your reply) This is exactly what I needed)