programming-examples/c/Bitwise/C Program to Reverse all the Bits of an 32-bit Integer using Bitwise.c

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2019-11-15 12:59:38 +01:00
/*
* C Program to Reverse all the Bits of an 32-bit Integer using
* Bitwise
*/
#include <stdio.h>
#define NUM_BITS_INT sizeof(int)*8
void main()
{
unsigned int number;
int i = 0, hexadecimal, rev = 0, bit;
printf("enter the hexdecimal value\n");
scanf("0x%number", &hexadecimal);
while (i++ < NUM_BITS_INT)
{
bit = hexadecimal & 1;
hexadecimal = hexadecimal >> 1;
rev = rev ^ bit;
if (i < NUM_BITS_INT)
rev = rev << 1;
}
printf("reverse of hexadecimal value is 0x%number", rev);
}