Bit Operations using Macros

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

#define toggle_5 reg^=1<<5
#define clear_3 reg&=~(1<<3)
#define set_2 reg |= 1<<2
#define set_7 reg |= 1<<7

uint8_t modify_register(uint8_t reg) {
    toggle_5;
    clear_3;
    
    set_2;
    set_7;
    return reg;
}

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