The C++ standard [sec 5.7] says:
If both the pointer operand and the result point to elements of the same array object, or one past the last element of the array object, the evaluation shall not produce an overflow; otherwise, the behavior is undefined.
So, am I correct in assuming that pointers one-past-the-end of other types than arrays are undefined?
For example:
int a = 0;
vector<int> v(&a, (&a)+1);
The above snippet compiles and works just fine (with g++), but is it valid?