Bit Operations using Macros

Code

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

// Define bitwise macros here
#define BIT_2  (2U)
#define BIT_7  (7U)
#define BIT_3  (3U)
#define BIT_5  (5U)
#define SET_BIT(reg,b)    (reg|(1<<b))
#define CLEAR_BIT(reg,b)  (reg&~(1<<b))
#define TOGGLE_BIT(reg,b)  (reg^(1<<b))
uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg = SET_BIT(reg,BIT_2) ;
     reg =SET_BIT(reg,BIT_7) ;
     reg =CLEAR_BIT(reg,BIT_3) ;
     reg =TOGGLE_BIT(reg,BIT_5);
    return reg;
}

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

Solving Approach