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  1. #include<vector>
  2. #include<algorithm> 
  3. #include<iostream>
  4. #include<iterator>
  5. using namespace std;
  6.  
  7. class ReplaceFunc
  8. { 
  9.      int mNumComp;
  10.      public:
  11.          ReplaceFunc(int i):mNumComp(i){}
  12.          bool operator()(int i)
  13.          {
  14.               if(i==mNumComp)
  15.                   return true;
  16.               else
  17.                   return false;
  18.          }
  19.  
  20. };
  21.  
  22.  
  23. int main()
  24. {
  25.     int arr[]={3, 3, 6, 4, 9, 6, 1, 4, 6, 6, 7, 3};
  26.     std::vector<int> vec(arr,arr + sizeof(arr)/sizeof(arr[0]));
  27.  
  28.     cout<<"Before\n";
  29.     copy(vec.begin(),vec.end(),ostream_iterator<int>(cout,"\n"));
  30.  
  31.     std::replace_if(vec.begin(),vec.end(),ReplaceFunc(3),54);
  32.  
  33.     cout<<"After\n";
  34.     copy(vec.begin(),vec.end(),ostream_iterator<int>(cout,"\n"));
  35.  
  36.     return 0;
  37. }
  38.  
Success #stdin #stdout 0.01s 2856KB
comments (?)
stdin
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Standard input is empty
stdout
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Before
3
3
6
4
9
6
1
4
6
6
7
3
After
54
54
6
4
9
6
1
4
6
6
7
54
https://ideone.com/JB87H
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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