What are common iterator errors in C++11 vectors?

What are some common iterator errors I might encounter when using C++11 vectors?

Common iterator errors in C++11 vectors include dereferencing invalid iterators, using iterators after the vector has been modified, and out-of-bounds access.

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 these iterator errors?

To avoid iterator errors, ensure that you do not use iterators after modifying the vector, and always check if the iterator is valid before dereferencing.

What tools can help me debug iterator issues?

You can use tools like Valgrind to detect memory issues, or enable debug mode in your IDE to catch iterator errors during development.