Logical and Conditional Operator In C language

Topic: Logical Operators and Conditional Operator Presented by: Abdul Rehman (BSSE09151014)

Three Logical Operators 1. && (Logical AND) 2. | | (Logical OR) 3. ! (Logical NOT) Logical Operators

 In this operator, the condition is true if both conditions are true. if ( gender == 1 && age >= 65 ) senior++; && (Logical AND)

Table of Logical AND Operand 1 Operand 2 Results x y x&&y 0 0 0 0 Non-Zero 0 Non-Zero 0 0 Non-Zero Non-Zero 1

• Use the AND operator on the bit patterns 10011000 and 00101010. Example

 In this operator , the program is executed if any one of the two conditions is true. if (semesterAvg >= 90 || finalExam >=90 ) printf("Student grade is A“); | | (Logical OR)

Operand 1 Operand 2 Result x y x | | y 0 0 0 0 Non-Zero 1 Non-Zero 0 1 Non-Zero Non-Zero 1 Table of Logical OR

Use the OR operator on the bit patterns 10011001 and 00101110. Example

Int x,y,z; if (x<y | | x<z) printf(“x is small”); Example

 If a condition is true then Logical NOT operator will make false and vice versa. if ( !( grade == 20 ) ) printf(“hello world“); Alternative: if ( grade != 20 ) printf(“hello world“); ! (Logical NOT)

Operand 1 Operand 2 Result Result x y !x !y 0 0 1 1 0 Non-Zero 1 0 Non-Zero 0 0 1 Non-Zero Non-Zero 0 0 Table of Logical NOT

Use the NOT operator on the bit pattern 10011000. Example

Ternary operator are used to reduce the code the in a short form. Conditional Operator

 General form is, (expression 1 ? expression 2 : expression 3);  Conditional operators ? and : are sometimes called ternary operators  if expression 1 is true, then the value returned will be expression 2, otherwise the value returned will be expression 3 Syntax

Nested conditional operator (expression 1 ? expression 2 : expression 3); Single condition or compound condition (expression 1 ? expression 2 : expression 3); (expression 1 ? expression 2 : expression 3);

Example program main( ) { float sal ; printf ("Enter the salary" ) ; scanf ( "%f", &sal ) ; ( (sal < 40000 && sal > 25000) ? printf ( "Manager" ) : (( sal < 25000 && sal > 15000 ) ? printf ( "Accountant") : printf ( "Clerk" ) )); }

Logical and Conditional Operator In C language

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Logical and Conditional Operator In C language