#include <vector>
int main()
{
std::vector<int> items;
items.push_back(1);
items.push_back(2);
items.push_back(3);
std::vector<int>::iterator iter;
for (iter = items.begin(); iter != items.end();) {
if (true) {
iter = items.erase(iter);
} else {
++iter;
}