Deleting elements from a STL List conditionally

[dariophoenix]

Hi,
We¡re getting a segmentation fault because we¡re trying to delete elements from a List while traversing it, i.e.:

void Character::deleteProcessed(list<Line> &active,int y){
    bool erasedAtTheEnd = false;
    for (list<Line>::iterator it = active.begin();it != active.end()&&!erasedAtTheEnd;){
        if (it->getHighPoint().getY() < (HeightFloat/Height)*(y+1)){
            Line aux = *it;
            it++;
            //In case you try to delete the final element ,  it != end  doesn't 
                        //stop the loop
            if (it==active.end()) 
                erasedAtTheEnd = true;
            active.remove(aux);
        }
        else it++;
    }
}
 

[Colloid Snake]

I know for sure in Java(not 100% sure about C++), that when you declare an iterator and use it to traverse a list, you cannot manipulate the list, by design. Have you tried a for loop with a counter that is cast as a 'Line' object to traverse the list? That might let you bypass (if it is the same in C++ as Java) the whole iterator/manipulation thing.