Weird behaviour with vector::erase and std::remove_if with end range different from vector.end()
- by Edison Gustavo Muenz
Hi,
I need to remove elements from the middle of a std::vector.
So I tried:
struct IsEven {
bool operator()(int ele)
{
return ele % 2 == 0;
}
};
int elements[] = {1, 2, 3, 4, 5, 6};
std::vector<int> ints(elements, elements+6);
std::vector<int>::iterator it = std::remove_if(ints.begin() + 2, ints.begin() + 4, IsEven());
ints.erase(it, ints.end());
After this I would expect that the ints vector have: [1, 2, 3, 5, 6].
In the debugger of Visual studio 2008, after the std::remove_if line, the elements of ints are modified, I'm guessing I'm into some sort of undefined behaviour here.
So, how do I remove elements from a Range of a vector?
