What are some common mistakes when using list iterators in C++?

What are some common mistakes when using list iterators in C++?

Some common mistakes include dereferencing invalid iterators, not checking for end conditions, and modifying the list while iterating.

Can you explain what happens if I dereference an invalid iterator?

Dereferencing an invalid iterator can lead to undefined behavior, which may cause your program to crash or produce incorrect results.

How can I avoid modifying the list while iterating?

To avoid modifying the list while iterating, consider using a separate list to store changes or use the std::remove_if algorithm.

What is the difference between begin() and end() in list iterators?

begin() returns an iterator to the first element, while end() returns an iterator to one past the last element, which is used for boundary checks.