kotlin-stdlib / kotlin.collections / AbstractMutableList / modCount

modCount

Common

Native

1.1

protected var modCount: Int
(Common source) (JS source) (Native source)

The number of times this list is structurally modified.

A modification is considered to be structural if it changes the list size, or otherwise changes it in a way that iterations in progress may return incorrect results.

This value can be used by iterators returned by iterator and listIterator to provide fail-fast behavior when a concurrent modification is detected during iteration. ConcurrentModificationException will be thrown in this case.