#include <stdio.h> #include <stdint.h> typedef struct { uint8_t start; uint8_t command; uint16_t data; uint8_t crc; uint8_t end; } Packet; void print_packet_fields(uint8_t *buffer) { // Overlay struct and print values // Interpret buffer as a Packet struct (overlay) Packet *pkt = (Packet *)buffer; // overlays the array as a struct //Access and print each field: printf("Start: %u\n", pkt->start); printf("Command: %u\n", pkt->command); printf("Data: %u\n", pkt->data); printf("CRC: %u\n", pkt->crc); printf("End: %u\n", pkt->end); } int main() { uint8_t buffer[6]; for (int i = 0; i < 6; i++) { scanf("%hhu", &buffer[i]); } print_packet_fields(buffer); return 0; }
Test Cases
Test Results
Input
165 1 52 18 119 90
Expected Output
Start: 165 Command: 1 Data: 4660 CRC: 119 End: 90