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  1. #include <iostream>
  2.  
  3. struct myArrayWrapper 
  4. {
  5.     int m_array[5];
  6. };
  7.  
  8. void doSomething(myArrayWrapper a) 
  9. {
  10.     int* A = a.m_array;
  11.  
  12.     //Display array contents
  13.     std::cout<<"\nIn Function Before Modification\n";
  14.     for (size_t j = 0; j < 5; ++j)
  15.        std::cout << ' ' << A[j];
  16.     std::cout << std::endl;
  17.  
  18.      //Modify the array
  19.      for (size_t j = 0; j < 5; ++j)
  20.        A[j] = 100;
  21.  
  22.     std::cout<<"\nIn Function After Modification\n";
  23.     //Display array contents
  24.     for (size_t j = 0; j < 5; ++j)
  25.        std::cout << ' ' << A[j];
  26.     std::cout << std::endl;
  27.  
  28. }
  29.  
  30. int main()
  31. {
  32.     myArrayWrapper obj;
  33.     obj.m_array[0] = 0;
  34.     obj.m_array[1] = 1;
  35.     obj.m_array[2] = 2;
  36.     obj.m_array[3] = 3;
  37.     obj.m_array[4] = 4;
  38.     doSomething(obj);
  39.  
  40.     //Display array contents
  41.     std::cout<<"\nIn Main\n";
  42.     for (size_t j = 0; j < 5; ++j)
  43.        std::cout << ' ' << obj.m_array[j];
  44.     std::cout << std::endl;
  45.  
  46.     return 0; 
  47. }
Success #stdin #stdout 0.02s 2724KB
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stdin
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Standard input is empty
stdout
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In Function Before Modification
 0 1 2 3 4

In Function After Modification
 100 100 100 100 100

In Main
 0 1 2 3 4
https://ideone.com/BJWw6
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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