Set or Clear a Specific Bit in a Register

Code

#include <stdio.h>

unsigned char modifyBit(unsigned char reg, int pos, int mode) {
    // Write your code here
    if(mode==1)
    return reg |= (1<<pos);
    else
    return reg &= ~(1<<pos);
}

int main() {
    unsigned char reg;
    int pos, mode;
    scanf("%hhu %d %d", &reg, &pos, &mode);
    printf("%d", modifyBit(reg, pos, mode));
    return 0;
}

Solving Approach

by  passing  values reg, pos, mode at the time  function calling which  taken from user then compare mode ==1  for setting else clear and return the o/p i.e reg