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  1. /*
  2. http://stackoverflow.com/questions/36700828/dereferencing-2d-array
  3. */
  4.  
  5. #include <iostream>
  6. #include <string>
  7.  
  8. using namespace std;
  9.  
  10. int arr[4][3]={
  11.     {1,2,3},
  12.     {4,5,6},
  13.     {7,8,9},
  14.     {10,11,12}
  15. };
  16.  
  17. int main(){
  18. 	cout<<"&arr = "<<&arr<<endl;
  19. 	cout<<" arr = "<<arr<<endl;
  20. 	cout<<"*arr = "<<*arr<<endl;
  21.  
  22. 	cout<<"*(int*)arr = "<<*(int*)arr<<endl;
  23.  
  24. 	int* b = (int*)arr;
  25. 	for(int i=0; i<4*3; i++){
  26. 		cout<<*b+i<<",";
  27. 	}
  28. }
  29.  
Success #stdin #stdout 0s 3456KB
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stdin
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Standard input is empty
stdout
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&arr = 0x8049bc0
 arr = 0x8049bc0
*arr = 0x8049bc0
*(int*)arr = 1
1,2,3,4,5,6,7,8,9,10,11,12,
https://ideone.com/CzeVMu
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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