Decode Status Register into Human-Readable Flags

Code

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

typedef union{
    uint8_t input;
    struct{
        unsigned BIT_SET_0 :1;
        unsigned BIT_SET_1 :1;
        unsigned BIT_SET_2 :1;
        unsigned BIT_SET_3 :1;
        unsigned BIT_SET_4 :1;
        unsigned BIT_SET_5 :1;
        unsigned BIT_SET_6 :1;
        unsigned BIT_SET_7 :1;
    }_8bit;
}data;

void decode_status(uint8_t status_reg) {
    data r; 
    r.input = status_reg;
    if(r._8bit.BIT_SET_0==1)
    {
        printf("Power On\n");
    }
    if(r._8bit.BIT_SET_1==1)
    {
        printf("Error\n");
    }
    if(r._8bit.BIT_SET_2==1)
    {
        printf("Tx Ready\n");
    }
    if(r._8bit.BIT_SET_3==1)
    {
        printf("Rx Ready\n");
    }
    if(r._8bit.BIT_SET_4==1)
    {
        printf("Overheat\n");
    }
    if(r._8bit.BIT_SET_5==1)
    {
        printf("Undervoltage\n");
    }
    if(r._8bit.BIT_SET_6==1)
    {
        printf("Timeout\n");
    }
    if(r._8bit.BIT_SET_7==1)
    {
        printf("Reserved\n");
    }
}

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

Solving Approach