Bit Operations using Macros

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

#define bit_set(byte, n) ((byte) |= (1<<(n)))
#define bit_clear(byte, n) ((byte) &= ~(1<<(n))) 
#define bit_toggle(byte, n) ((byte) ^= (1<<(n)))
#define bit_check(byte, n) ((byte) & (1<<(n)))

uint8_t modify_register(uint8_t reg) {
    reg = bit_set(reg, 2);
    reg = bit_set(reg, 7);
    reg = bit_clear(reg, 3);
    reg = bit_toggle(reg, 5);
    return reg;
}

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