Decode Status Register into Human-Readable Flags

Code

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

void decode_status(uint8_t status_reg) {
   uint8_t bit = 0;  
  char* status[] = {
    "Power On",
    "Error",
    "Tx Ready",
    "Rx Ready",
    "Overheat",
    "Undervoltage",
    "Timeout",
    "Reserved"
  };
  while(bit <= 7) {
   if(((1 << bit) & status_reg) > 0) {
    printf("%s\n", status[bit]);
   }
    bit++;
  }
}

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

Solving Approach

 

 

 

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Input

13

Expected Output

Power On Tx Ready Rx Ready