C++ 메모

1. vector 순환하며 삭제

auto i = std::begin(inv);
while (i != std::end(inv)) {
    // Do some stuff
    if (blah)
        i = inv.erase(i);
    else
        ++i;
}

for (auto it = begin(vec); it != end(vec);) {
  if (*it > 5)
    it = vec.erase(it);
  else
    ++it;
}

2. 맵 순환하며 삭제

std::map::iterator itr = myMap.begin();
while (itr != myMap.end()) {
    if (ShouldDelete(*itr)) {
       std::map::iterator toErase = itr;
       ++itr;
       myMap.erase(toErase);
    } else {
       ++itr;
    }
}

3.