Bit Operations using Macros

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

// Define bitwise macros here
#define SET_BIT(r, pos)  ((r) |= (1 << (pos)));
#define CLEAR_BIT(r, pos) ((r) &= ~(1 << (pos)));
#define TOGGLE_BIT(r, pos) ((r) ^= (1 << (pos)))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    //1. set bits 2 and 7
    SET_BIT(reg, 2);
    SET_BIT(reg, 7);

    //2. clear bit 3
    CLEAR_BIT(reg, 3);

    //3. Toggle bit 5
    TOGGLE_BIT(reg, 5);

    return reg;
}

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