When iterating over a standard container, do you think it's a good idea to omit the `std::` prefix and rely on ADL to find the definition? Example:

```
std::vector<int> vec = get_vec();
// range-based for loop would be preferred here, but just for the sake of example
for (auto it = begin(vec), end = end(vec); it != end; ++it) { /*...*/ }

```

Are there any reasons to do or not do this?