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  1. #include <iostream>
  2. #include <vector>
  3. #include <type_traits>
  4.  
  5. int main() 
  6. {
  7. 	using namespace std;
  8. 	vector<int> vect = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
  9. 	auto pvect       = &vect;
  10. 	auto pvect0      = &vect[0];
  11.  
  12.  
  13. 	*pvect0 = 42;
  14. 	cout << "vect[0] = " << vect[0] << endl;
  15.  
  16. 	cout << endl;
  17. 	cout << "&vect    = " << pvect    << endl;
  18. 	cout << "&vect[0] = " << pvect0 << endl;
  19.  
  20. 	cout << endl;
  21. 	cout << "sizeof(vect)              = " << sizeof(vect)              << endl;
  22. 	cout << "sizeof(int) * vect.size() = " << sizeof(int) * vect.size() << endl;
  23.  
  24.  
  25.  
  26.  
  27. 	return 0;
  28. }
Success #stdin #stdout 0s 4488KB
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stdin
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Standard input is empty
stdout
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vect[0] = 42

&vect    = 0x7ffc9d7aa3c0
&vect[0] = 0x5624574c0c20

sizeof(vect)              = 24
sizeof(int) * vect.size() = 40
https://ideone.com/RYmdkz
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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