Is using the OR (||) operator in conditional expressions permissible and safe?

Using the OR operator (||) in conditional expressions in C/C++ is completely valid and widely used. This operator returns true if at least one of the conditions is true. It also has short-circuiting property: if the first condition is true, the second is not evaluated, which can be useful for optimization and error prevention (for example, checking pointers before access).

Example:

int a = 5, b = 10;
if (a > 0 || b < 0) {
    // The condition is true if a > 0 or b < 0
}

It is important to understand the logic and order of conditions correctly to avoid unexpected results. Overall, this is a safe and standard way to combine conditions.