Bit Operations using Macros

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

// Define bitwise macros here
#define BIT_SET(reg,pos) ((reg)|=(1<<pos))
#define BIT_CLEAR(reg,pos) ((reg)&=~(1<<pos))
#define BIT_TOGGLE(reg,pos) ((reg)^= (1<<pos))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    BIT_SET(reg,2);
    BIT_SET(reg,7);
    BIT_CLEAR(reg,3);
    BIT_TOGGLE(reg,5);
    return reg;
}

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