Hi,
Given that removing/inserting elements from a map/slist/whatever does
not invalidate iterators to list elements, it is safe to use the
element that the iterator "points" to ?
For example:
slist<struct foo> list;
thread A:
lock();
list.insert_after(list.begin(), elem);
unlock();
thread B:
lock();
const_iterator it = slist.begin();
// or
iterator it = slist.begin();
const struct foo& elem = *it;
// or
struct foo& elem = *it'
unlock();
// operations on elem are atomic
while (bar++) {
foo.i++ | *it.i++
// or
if (foo.i == 5)
foobar();
}
lock();
slist.erase(it);
unlock();
