Decode Status Register into Human-Readable Flags

Code

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

#define CHECK_NTH_SET_BIT(reg, pos)     !!(reg & (1 << pos))

char *flags[] = {"Power On\n", 
                 "Error\n", 
                 "Tx Ready\n", 
                 "Rx Ready\n",
                 "Overheat\n",
                 "Undervoltage\n",
                 "Timeout\n",
                 "Reserved\n"};

void decode_status(uint8_t status_reg) {
    // Your logic here
    for (uint8_t pos = 0; pos < 8; pos++) {
        if (CHECK_NTH_SET_BIT(status_reg, pos)) {
            printf("%s", flags[pos]);
        }
    }
}

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

Solving Approach