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  1. #include <stdio.h>
  2.  
  3. template <typename T, typename FT, FT &F>
  4. void myforeach(T *p, int N)
  5. {
  6.     for(int i = 0; i < N; i++)
  7.     {
  8.         F(p[i]);
  9.     }
  10. }
  11.  
  12. int y = 2;
  13. auto f = [=](int &x) { x = x * y; };
  14.  
  15. int main()
  16. {
  17.     int a[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
  18.     myforeach<int, decltype(f), f>(a, 10);
  19.     for(int i = 0; i < 10; i++)
  20.     {
  21.         printf("%d ", a[i]);
  22.     }
  23.     printf("\n");
  24.     return 0;
  25. }
  26.  
Success #stdin #stdout 0s 3340KB
comments ()
stdin 
Standard input is empty
stdout 
0 2 4 6 8 10 12 14 16 18
https://ideone.com/7G3uTn
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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