boolean expression evaluation in C++

Question

Say I have this C++ code (it's from a binary tree problem)

if(t->left != nullptr && t->left->data != t->data)

Isn't it problematic since I try to access possibly a nullpointer's data? Or does it work? because the boolean evaluation happens in a specific order.

Answer 1

If the first condition results to false, the second one is not evaluated. So it's completely safe.