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  1. #include <stdio.h>
  2.  
  3. typedef struct elem {
  4.     void * d;
  5. } Elem;
  6.  
  7. int main() {
  8.     Elem *p = &(struct elem) { .d = NULL }; //malloc(sizeof(Elem));
  9.     Elem e;
  10.     double pi = 3.14;
  11.     e.d = &pi;
  12.     p->d = &pi;
  13.     printf("%f\n", *((double *)p->d));
  14.     printf("%f\n", *((double *)e.d));
  15. }
  16.  
  17. //https://pt.stackoverflow.com/q/110588/101
Success #stdin #stdout 0s 4200KB
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stdin
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Standard input is empty
stdout
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3.140000
3.140000
https://ideone.com/RgBeIW
language:
C99 (gcc 8.3)
created:
4 years ago
visibility:
secret

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