C20. C Arithmetic Operators

Arithmetic Operators

The arithmetic operators  >operators that perform addition, subtraction, multipli­cation, and division  >are the workhorses of many programming languages, includ­ing C.

Unary	Binary
+ unary plus  - unary minus	Additive	Multiplicative
	+ addition -subtraction	* multiplication / division  % remainder

The additive and multiplicative operators are said to be binary because they require two operands. The unary operators require one operand:

i = +1;  /* + used as a unary operator */ j j= -i;  /* - used as a unary operator */

The unary + operator does nothing; It's used primarily to emphasize that a numeric constant is positive.

The binary operators probably look familiar. The only one that might not is %, the remainder operator. The value of i % j is the remainder when i is divided by j.