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  1. #include <stdio.h>
  2.  
  3. union{
  4. char arr[4];
  5. long data;
  6. } test;
  7.  
  8. int main() {
  9. printf("endian.c\n\n");
  10.  
  11.     printf("sizeof(char) = %lu\n", sizeof(char));
  12.     printf("sizeof(short) = %lu\n\n", sizeof(short));
  13.  
  14.     short x = 1;
  15.  
  16.     short *w = &x; /* w to wskaznik na zmienna typu short */
  17.  
  18.     printf("*w = %d\n\n", *w);
  19.  
  20.     char *b = (char*)w; /* b to wskaznik na zmienna typu char */
  21.  
  22.     /* wskazniki w i b przechowuja ten sam adres */
  23.  
  24.     printf("w = %p\n", w);
  25.     printf("b = %p\n\n", b);
  26.  
  27.     /* test architektury */
  28.  
  29.     printf("*b = %d\n", *b);
  30.     printf("*(b+1) = %d\n", *(b+1));
  31. }
  32.  
Success #stdin #stdout 0.01s 5528KB
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stdin
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123
stdout
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endian.c

sizeof(char) = 1
sizeof(short) = 2

*w = 1

w = 0x7ffc9362f9d6
b = 0x7ffc9362f9d6

*b = 1
*(b+1) = 0
https://ideone.com/EYlA2S
language:
C (gcc 8.3)
created:
1 year ago
visibility:
public

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