Decode Status Register into Human-Readable Flags

Code

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

void decode_status(uint8_t status_reg) {
    uint8_t idx = 0 ;
    while(status_reg != 0 )
    {
        if(status_reg & 1)
        {
            switch(idx)
            {
                case 0: 
                    printf("Power On\n");
                    break;
                case 1: 
                    printf("Error\n");
                    break;
                case 2: 
                    printf("Tx Ready\n");
                    break;
                case 3: 
                    printf("Rx Ready\n");
                    break;
                case 4: 
                    printf("Overheat\n");
                    break;
                case 5: 
                    printf("Undervoltage\n");
                    break;
                case 6: 
                    printf("Timeout\n");
                    break;   
                case 7: 
                    printf("Reserved\n");  
                    break;                                                                                                                   
            }
        }
        status_reg >>= 1;
        idx++;
    }
}

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

Solving Approach