Operators And Expressions

August 23, 2020

Operators and Operands The operations (specific tasks) are represented by Operators and the objects of the operation(s) are referred to as Operand.

Expression An expression in C is any valid combination of tokens.

Types of operators

Unary Operators

Operators that act on one operand are referred to as Unary Opeartors.

Binary Operators

Operators that act upon two operands are referred to as Binary Opeartors.

Ternary Operators

Ternary operators requires three operands. The conditional operator (?:) is a ternary operator.

Arithmetic Operators

These are used to perform arithmetic operations.

//Program to add two numbers
#include<stdio.h>
int main()
{
  int n1, n2, sum;
  printf("Enter two numbers: ");
  scanf("%d %d",&n1,&n2);
  sum = n1 + n2;
  printf("Sum = %d", sum);
 return 0;
}

Output:

Enter two numbers: 10 15
Sum = 25

Relational Operators

These are used to check the relationship between two operands.

Logical Operators

These are used to check whether an expression is true or false.

Bitwise Operators

These are used to perform operations on individual bits.

Assignment Operators

These are used to assign values to variables.

Precedence of operators

The precedence of operators determines which operator is executed first if there is more than one operator in an expression.

Associativity of Operators

The associativity of operators determines the direction in which an expression is evaluated.