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Bitwise Operators in C

Bitwise Operators in C. Bitwise Operators in C. Bitwise operators are used to manipulate one or more bits from integral operands like char, int , short, long. Bitwise Operators in C. There are six bit operators: bitwise AND(&) bitwise OR(|) bitwise XOR(^) bitwise complement(~)

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Bitwise Operators in C

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  1. Bitwise Operators in C

  2. Bitwise Operators in C • Bitwise operators are used to manipulate one or more bits from integral operands like char, int, short, long.

  3. Bitwise Operators in C • There are six bit operators: • bitwise AND(&) • bitwise OR(|) • bitwise XOR(^) • bitwise complement(~) • left shift(<<) • right shift(>>)

  4. Bitwise Operators in C • Bitwise and: c1 & c2 • # include<stdio.h> • main() • { • char c1 = 4,c2 = 6,c3 ; • c3 = c1 & c2; • printf("\n Bitwise AND i.e. c1 & c2 = %d",c3); • } • Bitwise AND i.e. c1 & c2 = 4 • Suppose c1 = 4, c2 = 6; • The value of c1 & c2 is interpreted: • 0000 0100 • & 0000 0110 • ---------------- • 0000 0100

  5. Bitwise Operators in C • Bitwise or: c1 | c2 • # include<stdio.h> • main() • { • char c1 = 4,c2 =6 ,c3 = 3; • c3 = c1 | c2; • printf("\n Bitwise OR i.e. c1 | c2 = %c",c3); • } • Bitwise OR i.e. c1 | c2 = ? • Suppose c1 = 4, c2 = 6; • The value of c1 | c2 is interpreted as follows: • 0000 0100 • | 0000 0110 • -------------- • 0000 0110

  6. Bitwise Operators in C • Bitwise XOR: c1 ^ c2 • # include<stdio.h> • main() • { • char c1 = 4,c2 = 6,c3 = 3; • c3 = c1 ^ c2; • printf("\n Bitwise XOR i.e. c1 ^ c2 = %c",c3); • } • Suppose c1 = 4, c2 = 6; • The value of c1 ^ c2 is interpreted as follows: • 0000 0100 • ^ 0000 0110 • --------------- • 0000 0010

  7. Bitwise Operators in C • Complement: ~ • # include<stdio.h> • main() • { • char c1 = 4,c2 = 6,c3 = 3; • c3 = ~c1; • printf("\n ones complement of c1 = %c",c3); • } • Suppose c1 = 4, c2 = 6; • The value of ~ c1 is interpreted as follows: • ~ 0000 0100 • --------------- • 1111 1011

  8. Bitwise Operators in C • Left shift operator • # include<stdio.h> • main() • { • char c1 = 1,c2 = 2,c3 = 3; • c3 = c1<<2; • printf("\n left shift by 2 bits c1 << 2 = %c",c3); • } • c3 = c1 << 2; • The bits are shifted left by two places. • c1 is 0000 0100 • It is shifted 2 bits to the left • 0001 00** • While shifting, the high-order (left) bits are discarded. • The vacuum on the right side is filled with 0s.

  9. Bitwise Operators in C • Right shift operation • # include<stdio.h> • main() • { • char c1 = 1,c2 = 2,c3 = 3; • c3 = c1>>2; • printf("\n right shift by 2 bits c1 >> 2 = %c",c3); • }

  10. Bitwise Operators in C • Bitwise AND • xi yi xi &1 yi • 0 0 0 • 0 1 0 • 1 0 0 • 1 1 1 • Variable b3 b2 b1 b0 • x 1 1 0 0 • y 1 0 1 0 • z = x & y 1 0 0 0

  11. Bitwise Operators in C • Bitwise OR • xi yi xi |1 yi • 0 0 0 • 0 1 1 • 1 0 1 • 1 1 1 • Variable b3 b2 b1 b0 • x 1 1 0 0 • y 1 0 1 0 • z = x | y 1 1 1 0

  12. Bitwise Operators in C • Bitwise XOR • xi yi xi ^1 yi • 0 0 0 • 0 1 1 • 1 0 1 • 1 1 0 • Variable b3 b2 b1 b0 • x 1 1 0 0 • y 1 0 1 0 • z = x ^ y 0 1 1 0

  13. Bitwise Operators in C • Bitwise NOT • xi ~1 xi • 0 1 • 1 0 • Variable b3 b2 b1 b0 • x 1 1 0 0 • z = ~x 0 0 1 1

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