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  1. #include<iostream> 
  2. #include<thread> 
  3. using namespace std; 
  4.  
  5. class arrayModifier { 
  6. public: 
  7.  
  8.     void operator()(int a[], int len) { 
  9.         for (int i = 0; i < len; i++) { 
  10.             a[i] *= 2; 
  11.         } 
  12.     } 
  13.  
  14.     void invers(int a[], int len) { 
  15.         for (int i = 0; i < len; i++) { 
  16.             a[i] *= -1; 
  17.         } 
  18.     } 
  19. }; 
  20.  
  21. int main() { 
  22.     const int length = 5; 
  23.     int arr[length] = {1, 2, 3, 4, 5}; 
  24.     arrayModifier obj; 
  25.     cout << "Output the array before threads\n"; 
  26.     for (int i = 0; i < length; i++) { 
  27.         cout << arr[i] << ' '; 
  28.     } 
  29.     // Инициализируется объект функцией 
  30.     thread arr_thread(obj, arr, length); 
  31.     // Инициализируется обычным открытым методом 
  32.     thread arr_thread2(&arrayModifier::invers, &obj, arr, length); 
  33.     if (arr_thread.joinable()) arr_thread.join(); 
  34.     if (arr_thread2.joinable()) arr_thread2.join(); 
  35.     cout << "\nOutput th array after threads\n"; 
  36.     for (int i = 0; i < length; i++) { 
  37.         cout << arr[i] << ' '; 
  38.     } 
  39.     return 0; 
  40. }
Success #stdin #stdout 0s 19344KB
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stdin
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Standard input is empty
stdout
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Output the array before threads
1 2 3 4 5 
Output th array after threads
-2 -4 -6 -8 -10
https://ideone.com/SO9DjU
language:
C++14 (clang 8.0)
created:
5 years ago
visibility:
public

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