In this article, you’ll learn about what is Operator Precedence, Operator Precedence Table and more.
In C++, operator precedence dictates the order in which expressions containing multiple operators are evaluated. This is crucial for ensuring your code produces the intended results, especially when dealing with complex expressions.
What is Operator Precedence
Imagine you have a complex math problem with various operations like multiplication, addition, subtraction, and exponentiation. To solve it accurately, you follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)). Similarly, C++ has a set of rules that determine which operators are evaluated first in an expression.
For example x = 7 + 3 * 2; here, x is assigned 13, not 20 because operator * has higher precedence than +, so it first gets multiplied with 3*2 and then adds into 7.
Operator Precedence Table
C++ operators have different precedence levels, with higher precedence operators taking priority. Here’s a simplified table (consult your compiler’s documentation for the complete list):