Bit Operations using Macros

Code

#include <stdio.h>
#include <stdint.h>
/*#define  m1  (1 << 2);
#define  m2  (1 << 7);
#define  m3  ~(1 << 3);
#define  m4  (1 << 5);
this was my approach, solves test cases, but not portable*/
#define set(r,b) ((r) |= (1 << (b)))
#define clr(r,b) ((r) &= ~(1 << (b)))
#define toggle(r,b) ((r) ^= (1 << (b)))


// Define bitwise macros here

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    /*reg |= m1;
    reg |= m2;
    reg &= m3;
    reg ^= m4;*/
    set(reg,2);
    set(reg,7);
    clr(reg,3);
    toggle(reg,5);
    return reg;
}

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

Solving Approach