Bit Operations using Macros

Code

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

#define set_bits(n) ((1<<2)|(1<<7)|n); //Macro to set bits at pos:2 and pos:7
#define clear_bit(n) (n&~(1<<3));      //Macro to clear bit at pos:3
#define toggle_bit(n) (n^(1<<5));      //Macro to toggle bit at pos:5


uint8_t modify_register(uint8_t reg) 
{
    reg=set_bits(reg);
    reg=clear_bit(reg);
    reg=toggle_bit(reg);
    return reg;
}

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

Solving Approach