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  1. #include <stdio.h>
  2. #include <stddef.h>
  3.  
  4. struct cls
  5. {
  6.   public:
  7.     cls(char c, double d, int i) : c(c), d(d), i(i) {}
  8.   private:
  9.       char c;
  10.       double d;
  11.       int i;
  12. };
  13.  
  14. struct copy
  15. {
  16.   public:
  17.     copy(char c, double d, int i);
  18.   public:
  19.       char c;
  20.       double d;
  21.       int i;
  22. };
  23.  
  24. int main(void)
  25. {
  26.   cls x('1', 2.5, 3);
  27.   printf
  28.   (
  29.   	"%c %f %d\n", 
  30.     *(char*)((void*)&x + offsetof(copy, c)),
  31.     *(double*)((void*)&x + offsetof(copy, d)),
  32.     *(int*)((void*)&x + offsetof(copy, i))
  33.   );
  34.   return 0;
  35. }
Success #stdin #stdout 0s 3412KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
1 2.500000 3
https://ideone.com/gTyt2Q
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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