std::remove question

[Silvermaul]

Hi guys, considering the code below :

std::vector<SphereMarker>::const_iterator it = markerList.begin();
while(it != markerList.end()){
    if(std::find(current.begin(), current.end(), *it) != current.end()){
        //point already part of sequence so remove from vector
        markerList.erase(std::remove(markerList.begin(), markerList.end(), *it), markerList.end());
    }
    else{
    //do something else
    }
}

When an element is erased "it" points to the next element. Can someone explain to me where "it" gets it's new value assigned?

[kempofighter]

The erase operation returns a value. Did you look at the interface for the container function? You need to assign it a new value which is the return value of the erase function.
http://cplusplus.com/reference/stl/vector/erase/

To be honest with you, that is a strange loop. I'm not sure why you have the while loop there. Since I don't know what is in the else path, I am not sure what you are trying to do. Bottom line is that "you" must assign something to "it" if you want it to have a value. That is not going to happen automatically.

[Silvermaul]

I did check the interface of course and I was assigning a value to it. But this line of code increases "it" somehow magically. No idea why either :o

[ne555]

read http://www.cplusplus.com/reference/algorithm/remove/
"it" should still be equal to markerList.begin(). "it" was not increase, but the container modified.

[Silvermaul]

So basically if the first element is erased then it points to the next element without being manually increased.

Thanks for the answers guys.