Bit Operations using Macros

Code

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

// Define bitwise macros here
#define setBit(reg, x) ((reg) |= (1 << (x)))
#define clearBit(reg, x) ((reg) &= ~(1 << x))
#define toggleBit(reg,x) ((reg) ^= (1 << x))


uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    //reg = ((reg | (1 << 2) | (1 << 7)) & ~(1 << 3)) ^ (1 << 5) ;
    setBit(reg, 2) ;
    setBit(reg, 7) ;
    clearBit(reg, 3) ;
    toggleBit(reg, 5) ;

    return reg;
}

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

Solving Approach