Set or Clear a Specific Bit in a Register

Solving Approach

Code

#include <stdio.h>

unsigned char modifyBit(unsigned char reg, int pos, int mode)
{
    switch(mode)
    {
        case 1: reg |= (1 << pos); break;
        case 0: reg &= ~(1 << pos); break; 
    }

    return reg;
}

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