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  1. #include <stdio.h>
  2.  
  3. typedef struct {
  4.   unsigned int a ; 
  5. } deepest_t ;  
  6.  
  7. typedef struct {
  8.   deepest_t* deepest_ptr ;
  9. } deeper_t ; 
  10.  
  11. typedef struct {
  12.   deeper_t*  deeper_ptr ;
  13. } deep_t ; 
  14.  
  15. typedef struct {
  16.   void* data ;
  17. } data_container_t ; 
  18.  
  19. //-------------------------------
  20.  
  21. int main(void)
  22. {
  23.     deepest_t deepest = {
  24.       .a = 5, 
  25.     } ; 
  26.  
  27.     deeper_t deeper = { 
  28.       .deepest_ptr = &deepest, 
  29.     } ;
  30.  
  31.     deep_t deep = { 
  32.       .deeper_ptr = &deeper,
  33.     } ;
  34.  
  35.     data_container_t data_container = {
  36.       .data = &(((deeper_t*) deep.deeper_ptr)->deepest_ptr),
  37.     } ; 
  38.  
  39. //-------------------------------
  40.  
  41.     deepest_t * d = *((deepest_t**)(data_container.data));
  42.  
  43.     printf(" %u \n", (*d).a);
  44.  
  45. 	return 0;
  46. }
  47.  
Success #stdin #stdout 0s 1832KB
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https://ideone.com/mGCC24
language:
C (gcc 8.3)
created:
12 years ago
visibility:
public

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