C Bitwise pro

C Program to convert number to binary using bitwise operators

 #include

#include

void printbinary(int num)

{

int mask=0x4000;

if((num&0x8000)==0)

printf("0");

else

printf("1");

while(mask!=0)

{

if((num&mask)==0)

printf("0");

else

printf("1");

mask=mask>>1;

}

}

void main()

{

int intnum;

printf("\n enter a integer number: ");

scanf("%d",&intnum);

printf("\n integer number in binary format: ");

printbinary(intnum);

getch();

}

Output

Enter a integer number :91

Integer number in binary format : 0000000001011011

C Program to demonstrate Bitwise right shift operator

#include

#include

void printbinary(int num)

{

int mask=0x4000;

if((num&0x8000)==0)

printf("0");

else

printf("1");

while(mask!=0)

{

if((num&mask)==0)

printf("0");

else

printf("1");

mask=mask>>1;

}

}

void main()

{

int intnum, shiftednumber,n;

printf("\n right shift operation:”);

printf("\n enter a integer number:”);

scanf("%d",&intnum);

printf("\nplaces by which you want to right shift: ");

scanf("%d",&n);

shiftednumber=intnum>>n;

printf("\n original number: ");

printbinary(intnum);

printf("\ number after right shifting : “);

printbinary(shiftednumber);

getch();

}

Output

Right shift operation:

Enter a integer number :88

Places by which you want to right shift : 3

Original number   :0000000001011000

Number after right shifting : 0000000000001011

C Program to Swap two numbers using XOR Operator

 #include

#include

int main()

{

int num1,num2;

printf("\n enter first number: ");

scanf("%d",&num1);

printf("\n enter second number : ");

scanf("%d",&num2);

num1=num1^num2;

num2=num1^num2;

num1=num1^num2;

printf("\n numbers after exchange : ");

printf("\n num1=%d and num2=%d",num1,num2);

return(0);

}

Output

Enter first number         :         20

Enter second number     :40
Number after exchange : num1=40 and num2 = 20

C Program to demonstrate Bitwise left shift operator

#include

#include

void printbinary(int num)

{

int mask=0x4000;

if((num&0x8000)==0)

printf("0");

else

printf("1");

while(mask!=0)

{

if((num&mask)==0)

printf("0");

else

printf("1");

mask=mask>>1;

}

}

void main()

{

int intnum, shiftednumber,n;

printf("\n left shift operation:”);

printf("\n enter a integer number:”);

scanf("%d",&intnum);

printf("\nplaces by which you want to left shift: ");

scanf("%d",&n);

shiftednumber=intnum<

printf("\n original number: ");

printbinary(intnum);

printf("\ number after left shifting : “);

printbinary(shiftednumber);

getch();

}

Output

          Left shift operation:

          Enter a integer number : 45

          Places by which you want to left shift : 3

         Original number   :0000000000101101

         Number after left shifting : 0000000101101000