C program to implement bit flipping.

Write a C program to implement bit flipping.
C Program to setbits(x,p,n,y) that returns x with the n bits that begin at position p set to the rightmost n bits of y, leaving the other bits unchanged in the least number of lines.
Bit flipping or flip bit is the complement(~) of bits. i.e., 0 to 1 and vise versa. bit flipping is the bits manipulation or processing individual bits within a byte. Bit flipping is used in the very low-level programming and is often used in graphics and systems programming.Read more about C Programming Language .

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#include <stdio.h>
#include <math.h>
#include <limits.h>

unsigned setbits(unsigned x, unsigned p, unsigned n, unsigned y) {
x |= (y & ~(~0 << n)) << p;
size_t s = (int)(log(INT_MAX)/log(2)) + 1;
printf("nnnSuccess! Number after bit flipping: n", s);
int mask = pow(2.0, (int)s);
do {
((x & mask) == 0) ? printf("0") : printf("1");
((s%4)==0) ? printf(" ") : printf("");
x <<= 1;
} while (s--);

void main( ) {
unsigned retrn=1, begin=0, nbits=0, num=0;

printf("Enter the number to bit flip!n");
printf("Enter the number of bits to be flip!n");
printf("Enter the position to begin bit flip!n");
unsigned x = setbits(retrn, begin, nbits, num);

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