[alexlarsson]

Yes, but it can't assume any random function call it does doesn't use a different pointer to the same object which is not const. So, even if you don't cast const to non-const pointers you can run into the const value changing.

[bstamour]

Concrete example:

  void foo(const int* const p1, int* const p2) {
    int a = *p1;
    *p2 += 42;
    int b = *p1;
    return a == b; // b = a + 42
  }
  int main() {
    int x = 0;
    return foo(&x, &x);
  }