fork download
copy 
  1. #include <iostream>
  2.  
  3. #pragma pack(push, 1)
  4. struct A
  5. {
  6.     int a;
  7.     char b;
  8. };
  9. #pragma pack(pop)
  10.  
  11. struct B : public A
  12. {
  13.     int c;
  14. };
  15.  
  16. int main()
  17. {
  18.     std::cout << "Size of A:  " << sizeof(A) << std::endl;
  19.     std::cout << "Size of B:  " << sizeof(B) << std::endl;
  20.     return 0;
  21. }
Success #stdin #stdout 0.02s 2680KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Size of A:  5
Size of B:  12
https://ideone.com/cZa3V
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!