Bit Operations using Macros

Code

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

// Define bitwise macros here

#define SET_BIT(reg,bit) reg |= (1 << bit);     // Set bit n
#define CLEAR_BIT(reg,bit) reg &= ~(1 << bit);    // Clear bit n
#define TOGGLE_BIT(reg,bit)reg ^= (1 << bit);     // Toggle bit n

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    SET_BIT(reg,2);
    SET_BIT(reg,7);
    CLEAR_BIT(reg,3);
    TOGGLE_BIT(reg,5);
    return reg;
}

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

Solving Approach