Bit Operations using Macros

Code

#include <stdio.h>
#include <stdint.h>

// Define bitwise macros here
uint8_t set_bit(uint8_t reg, uint8_t pos) 
{
    reg |= (1 << pos);
    return reg;
}

uint8_t clear_bit(uint8_t reg, uint8_t pos) 
{
    reg &= ~(1 << pos);
    return reg;
}

uint8_t toggle_bit(uint8_t reg, uint8_t pos) 
{
    reg ^= (1 << pos);
    return reg;
}

uint8_t modify_register(uint8_t reg) 
{
    reg = set_bit(reg, 2);
    reg = set_bit(reg, 7);

    reg = clear_bit(reg, 3);

    reg = toggle_bit(reg, 5);

    return reg;
}

int main() 
{
    uint8_t reg;
    scanf("%hhu", &reg);
    printf("%u", modify_register(reg));
    return 0;
}

Solving Approach