Thread: How to delete item from list, while iterating through list?

How would i delete an item from a list<> class while im iterating through the list? I need it to first delete the item, than go to the next item without any problems.

Code:

for(list<ThrowObject>::iterator it = throwObjects.begin(); it != throwObjects.end(); ++it)
{
    ThrowObject& throwObject = *it;

    //do stuff

    if(****)  //delete the item
    {
      ??
    }
}

Originally Posted by 39ster

How would i delete an item from a list<> class while im iterating through the list? I need it to first delete the item, than go to the next item without any problems.

You have to obtain the next iterator value BEFORE erasing the element the iterator is pointing to. Generally:

Code:

for(iterator it = x.begin(), next; it != x.end(); it = next)
{
    next = it;
    ++next;
    // do stuff, possibly deleting the element
}

Worked. Thanks.