Logical Operators In C

Author Praveen

Aug 13, 2015

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Logical operators in C:

• These operators are used to perform logical operations on the given expressions.
• There are 3 logical operators in C language. They are, logical AND (&&), logical OR (||) and logical NOT (!).

S.no	Operators	Name	Example	Description
1	&&	logical AND	(x>5)&&(y<5)	It returns true when both conditions are true
2	||	logical OR	(x>=10)||(y>=10)	It returns true when at-least one of the condition is true
3	!	logical NOT	!((x>5)&&(y<5))	It reverses the state of the operand “((x>5) && (y<5))” If “((x>5) && (y<5))” is true, logical NOT operator makes it false

Code:

#include <stdio.h>

int main()
 {
 int m=40,n=20;
 int o=20,p=30;
 if (m>n && m !=0)
 {
 printf("&& Operator : Both conditions are true\n");
 }
 if (o>p || p!=20)
 {
 printf("|| Operator : Only one condition is true\n");
 }
 if (!(m>n && m !=0))
 {
 printf("! Operator : Both conditions are true\n");
 }
 else
 {
 printf("! Operator : Both conditions are true. " \
 "But, status is inverted as false\n");
 }
 }

Output:

&& Operator : Both conditions are true
|| Operator : Only one condition is true
! Operator : Both conditions are true. But, status is inverted as false

Tag : C Expressions, C language, C Logical Operators, C Operators, Programming, Programming language, Variables In C