In C++, operator associativity generally follows these rules: 1. Left-to-right: Left-associative operators are evaluated from left to right. For example, both multiplication and division are left-associative. In the expression a * b * c, the operations are performed sequentially from left to right. 2. Right-to-left: Right-associative operators are evaluated from right to left. For instance, addition and subtraction are right-associative; thus, in the expression a + b + c, the calculations proceed from right to left for addition. Some operators do not affect associativity; for example, unary operators (like positive and negative signs) do not change the direction of other operators' associativity. It's important to note that when an operand is a compound expression, its associativity may change; for instance, in a + (b + c), since the addition inside parentheses is left associative, b + c is calculated first before adding it to a. In summary, operator associativity in C++ is determined by the type and precedence of operators used. When writing expressions, one should be mindful of operator precedence and associativity to ensure correct calculation results.
