Cannot advance an iterator to an empty deque by zero, or take an empty slice.

With Boost 1.72.0, the following code causes an assert under debug, or a divide by zero for release builds...

boost::container::deque<int> myDeque;
auto iter = myDeque.begin();
std::advance(iter, 0);

This happens when trying to take a zero sized slice of an empty deque...

boost::container::deque<int> myDeque;
nItems = 0;
for(const auto &item : myDeque | boost::adaptors::sliced(0, nItems))
{
    // do something
}

This looks similar to #83 which was a similar issue but for vectors instead of deques.

boostorg / container