Does Visual C++ consider signed integer overflow undefined?

Question

It\'s gotten a lot of attention lately that signed integer overflow is officially undefined in C and C++. However, a given implementation may choose to define it; in C++, an i

Answer 1

Your example probably does have undefined behavior for n == INT_MAX, but not just because of signed integer overflow being undefined (which it may not be on the Microsoft compiler). Rather, you are probably invoking undefined out-of-bounds pointer arithmetic.