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Assume A = 60 and B = 13; in binary format, they will be as follows :

A = 0011 1100

B = 0000 1101

A&B = 0000 1100

A|B = 0011 1101

A^B = 0011 0001

~A = 1100 0011

The following table lists the bitwise operators supported by C. Assume variable ‘A’ holds 60 and variable ‘B’ holds 13, then :

Example :

Output :

Example :

Output :

Example :

Output :

**Bitwise Operators :**Bitwise operators work on bits and perform bit-by-bit operation. The truth table for &, |, and ^ is as follows :p | q | p & q | p | q | p ^ q |
---|---|---|---|---|

0 | 0 | 0 | 0 | 0 |

0 | 1 | 0 | 1 | 1 |

1 | 1 | 1 | 1 | 0 |

1 | 0 | 0 | 1 | 1 |

Assume A = 60 and B = 13; in binary format, they will be as follows :

A = 0011 1100

B = 0000 1101

A&B = 0000 1100

A|B = 0011 1101

A^B = 0011 0001

~A = 1100 0011

The following table lists the bitwise operators supported by C. Assume variable ‘A’ holds 60 and variable ‘B’ holds 13, then :

Operators | Description | Examples |
---|---|---|

& | Binary AND Operator copies a bit to the result if it exists in both operands. | (A & B) = 12 |

| | Binary OR Operator copies a bit if it exists in either operand. | (A | B) = 61 |

^ | Binary XOR Operator copies the bit if it is set in one operand but not both. | (A ^ B) = 49 |

~ | Binary Ones Complement Operator is unary and has the effect of 'flipping' bits. | (~A ) = -61 |

<< | Binary Left Shift Operator. The left operands value is moved left by the number of bits specified by the right operand. | A << 2 = 240 |

>> | Binary Right Shift Operator. The left operands value is moved right by the number of bits specified by the right operand. | A >> 2 = 15 |

Example :

#include <stdio.h>

int main()

{

unsigned int a=60; /* 60 = 0011 1100 */

unsigned int b=13; /* 13 = 0000 1101 */

int c=0;

c= a & b;

printf("Value of c is %d\n",c); /* 12 = 0000 1100 */

c= a | b;

printf("Value of c is %d\n",c); /* 61 = 0011 1101 */

c= a ^ b;

printf("Value of c is %d\n",c); /* 49 = 0011 0001 */

c= ~a;

printf("Value of c is %d\n",c); /*-61 = 1100 0011 */

c= a << 2;

printf("Value of c is %d\n",c); /* 240 = 1111 0000 */

c= a >> 2;

printf("Value of c is %d\n",c); /* 15 = 0000 1111 */

}

int main()

{

unsigned int a=60; /* 60 = 0011 1100 */

unsigned int b=13; /* 13 = 0000 1101 */

int c=0;

c= a & b;

printf("Value of c is %d\n",c); /* 12 = 0000 1100 */

c= a | b;

printf("Value of c is %d\n",c); /* 61 = 0011 1101 */

c= a ^ b;

printf("Value of c is %d\n",c); /* 49 = 0011 0001 */

c= ~a;

printf("Value of c is %d\n",c); /*-61 = 1100 0011 */

c= a << 2;

printf("Value of c is %d\n",c); /* 240 = 1111 0000 */

c= a >> 2;

printf("Value of c is %d\n",c); /* 15 = 0000 1111 */

}

Output :

Value of c is 12

Value of c is 61

Value of c is 49

Value of c is -61

Value of c is 240

Value of c is 15

Value of c is 61

Value of c is 49

Value of c is -61

Value of c is 240

Value of c is 15

**Assignment Operators :**The following tables lists the assignment operators supported by the C language :Operators | Description | Examples |
---|---|---|

= | Simple assignment operator. Assigns values from right side operands to left side operand. | C = A + B will assign the value of A + B to C |

+= | Add AND assignment operator. It adds the right operand to the left operand and assigns the result to the left operand. | C += A is equivalent to C = C + A |

-= | Subtract AND assignment operator. It subtracts the right operand from the left operand and assigns the result to the left operand. | C -= A is equivalent to C = C - A |

*= | Multiply AND assignment operator. It multiplies the right operand with the left operand and assigns the result to the left operand. | C *= A is equivalent to C = C * A |

/= | Divide AND assignment operator. It divides the left operand with the right operand and assigns the result to the left operand. | C /= A is equivalent to C = C / A |

%= | Modulus AND assignment operator. It takes modulus using two operands and assigns the result to the left operand. | C %= A is equivalent to C = C % A |

<<= | Left shift AND assignment operator. | C <<= 2 is same as C= C << 2 |

>>= | Right shift AND assignment operator. | C >>= 2 is same as C= C >> 2 |

&= | Bitwise AND assignment operator. | C &= 2 is same as C=C & 2 |

^= | Bitwise exclusive OR and assignment operator. | C ^= 2 is same as C = C ^ 2 |

|= | Bitwise exclusive OR and assignment operator. | C |= 2 is same as C =C | 2 |

Example :

#include <stdio.h>

int main()

{

int a=21, c;

c=a;

printf("Value if c is %d\n",c);

c+=a;

printf("Value if c is %d\n",c);

c-=a;

printf("Value if c is %d\n",c);

c*=a;

printf("Value if c is %d\n",c);

c/=a;

printf("Value if c is %d\n",c);

c%=a;

printf("Value if c is %d\n",c);

c<<=a;

printf("Value if c is %d\n",c);

c>>=a;

printf("Value if c is %d\n",c);

c&=a;

printf("Value if c is %d\n",c);

c^=a;

printf("Value if c is %d\n",c);

c|=a;

printf("Value if c is %d\n",c);

}

int main()

{

int a=21, c;

c=a;

printf("Value if c is %d\n",c);

c+=a;

printf("Value if c is %d\n",c);

c-=a;

printf("Value if c is %d\n",c);

c*=a;

printf("Value if c is %d\n",c);

c/=a;

printf("Value if c is %d\n",c);

c%=a;

printf("Value if c is %d\n",c);

c<<=a;

printf("Value if c is %d\n",c);

c>>=a;

printf("Value if c is %d\n",c);

c&=a;

printf("Value if c is %d\n",c);

c^=a;

printf("Value if c is %d\n",c);

c|=a;

printf("Value if c is %d\n",c);

}

Output :

Value if c is 21

Value if c is 42

Value if c is 21

Value if c is 441

Value if c is 21

Value if c is 0

Value if c is 0

Value if c is 0

Value if c is 0

Value if c is 21

Value if c is 21

Value if c is 42

Value if c is 21

Value if c is 441

Value if c is 21

Value if c is 0

Value if c is 0

Value if c is 0

Value if c is 0

Value if c is 21

Value if c is 21

**Misc Operators :**The following tables lists the misc operators supported by the C language :Operators | Description | Examples |
---|---|---|

sizeof() | Returns the size of a variable. | sizeof(a), where a is integer, will return 4. |

& | Returns the address of a variable. | &a; returns the actual address of the variable. |

* | Pointer to a variable. | *a; |

*= | Multiply AND assignment operator. It multiplies the right operand with the left operand and assigns the result to the left operand. | C *= A is equivalent to C = C * A |

?: | Conditional Expression. | If Condition is true ? then value X : otherwise value Y |

Example :

#include <stdio.h>

int main()

{

int a=5;

short b;

double c;

int *ptr;

sizeof(a);

printf("Size of variable a = %d\n", sizeof(a) );

ptr = &a; /* 'ptr' now contains the address of 'a'*/

printf("value of a is %d\n", a);

printf("*ptr is %d.\n", *ptr); /* example of ternary operator */

a = 10;

b = (a == 1) ? 20: 30;

printf( "Value of b is %d\n", b );

b = (a == 10) ? 20: 30;

printf( "Value of b is %d\n", b );

}

int main()

{

int a=5;

short b;

double c;

int *ptr;

sizeof(a);

printf("Size of variable a = %d\n", sizeof(a) );

ptr = &a; /* 'ptr' now contains the address of 'a'*/

printf("value of a is %d\n", a);

printf("*ptr is %d.\n", *ptr); /* example of ternary operator */

a = 10;

b = (a == 1) ? 20: 30;

printf( "Value of b is %d\n", b );

b = (a == 10) ? 20: 30;

printf( "Value of b is %d\n", b );

}

Output :

Size of variable a = 4

value of a is 5

*ptr is 5

Value of b is 30

Value of b is 20

value of a is 5

*ptr is 5

Value of b is 30

Value of b is 20

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