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  1. #include <stdio.h>
  2.  
  3. int check_endianness() {
  4.     int value = 1;
  5.     char *ptr = (char*)&value;
  6.  
  7.     if (*ptr == 1) {
  8.         return 1; // Little-endian
  9.     } else {
  10.         return 0; // Big-endian
  11.     }
  12. }
  13.  
  14. int main() {
  15.     if (check_endianness()) {
  16.         printf("Little-endian\n");
  17.     } else {
  18.         printf("Big-endian\n");
  19.     }
  20.     return 0;
  21. }
Success #stdin #stdout 0s 5284KB
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Little-endian
https://ideone.com/kY5QV3
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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