Bit Operations using Macros

Code

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

#define set_bits_2_7(data)  (data |= (1<<2|1<<7))  
#define clear_bit_3(data)   (data &= (~(1<<3)))
#define toggle_bit_5(data)  (data ^= (1<<5))

uint8_t modify_register(uint8_t reg) {
    set_bits_2_7(reg);
    clear_bit_3(reg);
    toggle_bit_5(reg);
    return reg;
}

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

Solving Approach