Bit Operations using Macros

Code

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

#define Set_Bit(reg,bit)  ((reg) |= (1<<bit));
#define Clear_Bit(reg,bit)  ((reg) &= ~(1<<bit));
#define Toggle_bit(reg,bit) ((reg ^= (1<<bit)));

uint8_t modify_register(uint8_t reg) {
    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