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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main() {
  6.  
  7. 	int* tab = new int[100];
  8.  
  9. 	for(int i=0;i<10;++i)
  10. 		tab[i] = i;
  11.  
  12. 	int* tabSize = tab-1;
  13.  
  14. 	cout << "sizeof(int): " << sizeof(int) << endl;
  15. 	cout << "Tab: " << (unsigned int)tab << endl;
  16. 	cout << "TabSize: " << (unsigned int)tabSize << endl;
  17. 	cout << "TabSize value: " << *tabSize << endl; 
  18.  
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 3272KB
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stdin
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Standard input is empty
stdout
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sizeof(int): 4
Tab: 151810056
TabSize: 151810052
TabSize value: 409
https://ideone.com/DzAyGM
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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