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  1. #include <iostream>
  2. #include <ios>
  3.  
  4. int main()
  5. {
  6. 	int ia[ 2 ][ 4 ] = { { 1, 3, 5, 7 }, { 2, 4, 6, 8 } };
  7.  
  8. 	//int** ip = ia;
  9. 	int* ip = reinterpret_cast< int* >( ia );
  10.  
  11. 	std::cout << std::hex << ia;
  12. 	std::cout << " ia" << std::endl;
  13.  
  14. 	std::cout << "---" << std::endl;
  15.  
  16. 	for ( int i = 0 ; i < 2 ; ++i )
  17. 	{
  18. 		for ( int j = 0 ; j < 4 ; ++j )
  19. 		{
  20. 			std::cout << std::hex << &( ia[ i ][ j ] );
  21. 			std::cout << " ia[ " << i << " ][ " << j << " ]" << std::endl;
  22. 		}
  23. 	}
  24.  
  25. 	std::cout << "---" << std::endl;
  26.  
  27. 	std::cout << "sizeof( ia ) == " << sizeof( ia ) << std::endl;
  28. 	std::cout << "sizeof( ip ) == " << sizeof( ip ) << std::endl;
  29.  
  30. 	std::cout << "---" << std::endl;
  31.  
  32. 	for ( int i = 0 ; i < 2 ; ++i )
  33. 	{
  34. 		for ( int j = 0 ; j < 4 ; ++j )
  35. 		{
  36. 			//std::cout << ip[ i ][ j ] << ' ';
  37. 			std::cout << *( ip + 4 * i + j ) << ' ';
  38. 		}
  39. 		std::cout << std::endl;
  40. 	}
  41.  
  42. 	return 0;
  43. }
  44.  
Success #stdin #stdout 0.01s 2728KB
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stdin
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Standard input is empty
stdout
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0xbf860fd4 ia
---
0xbf860fd4 ia[ 0 ][ 0 ]
0xbf860fd8 ia[ 0 ][ 1 ]
0xbf860fdc ia[ 0 ][ 2 ]
0xbf860fe0 ia[ 0 ][ 3 ]
0xbf860fe4 ia[ 1 ][ 0 ]
0xbf860fe8 ia[ 1 ][ 1 ]
0xbf860fec ia[ 1 ][ 2 ]
0xbf860ff0 ia[ 1 ][ 3 ]
---
sizeof( ia ) == 20
sizeof( ip ) == 4
---
1 3 5 7 
2 4 6 8
https://ideone.com/R8ENM
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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