Question

Is it possible to remove an element from an std::list if you have only the iterator that points to the element you want to remove? I have a large amount of functions that take iterators to list elements, and it would be a huge inconvenience to have to pass the owning list to every one of them.

Answer 1

Edit:

You cant with a single iterator.

If you have the begin/end iterators, you could use the std::remove algorithm to move all the elements you want to erase to the end, and delete them at a later point.

If you don’t, or the above isn’t feasible with your current design, i’d recommend altering your functions to take a std::pair<std::list<T>, std::list<T>::iterator> or something like that.