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  1. #include <iostream>
  2. #include <iterator>
  3. #include <memory>
  4. #include <vector>
  5.  
  6. struct alignas(128) Foo
  7. {
  8.     int x;
  9. };
  10.  
  11. int main()
  12. {
  13.     Foo a[10];
  14.     std::vector<Foo> b(10);
  15.     std::cout << sizeof a << "\n"
  16.               << sizeof(Foo) << "\n"
  17.               << (reinterpret_cast<char*>(&*end(b)) - reinterpret_cast<char*>(&*begin(b))) << "\n"
  18.         ;
  19. }
  20.  
Success #stdin #stdout 0s 3472KB
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Standard input is empty
stdout
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1280
128
1280
https://ideone.com/eJsfGX
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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