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

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

Common iterator errors in C++11 maps include dereferencing invalid iterators, using end() iterators incorrectly, and modifying the map 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 safely iterate over a map without running into these errors?

To safely iterate, use a for loop with auto keyword, and avoid modifying the map during iteration. Consider using copy if needed.

What should I do if I need to remove elements while iterating?

You can use the erase() method with the iterator returned by the erase function to safely remove elements while iterating.