In terms of object-oriented design principles, what is typically the most significant critique against the use of friend functions?
- They break encapsulation.
- They increase execution time.
- They aren't necessary in OOP.
- They cause memory leaks.
Friend functions have the ability to access private and protected members of a class, which can be seen as a violation of the principle of encapsulation in object-oriented programming. While they offer flexibility, they can break the boundaries set by encapsulation.
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