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  1. #include <iostream>
  2. #include <vector>
  3. #include <iterator>
  4. #include <functional>
  5.  
  6. using namespace std;
  7.  
  8. double f(double x) {
  9. 	return 4*x+1;
  10. }
  11.  
  12. template<class ForwardIt, class Generator>
  13. void generate_iter(ForwardIt first, ForwardIt last, Generator g)
  14. {
  15.     while (first != last) {
  16.         *first = g(first);
  17.         ++first;
  18.     }
  19. }
  20.  
  21. int main() {
  22.     size_t constexpr nmax = 10;
  23.     std::vector<double> vect1 (nmax);
  24.     generate_iter(vect1.begin(), vect1.end(), [&](const std::vector<double>::iterator& iter) {
  25.     	auto count = std::distance(vect1.begin(), iter);
  26.     	return f(count);
  27.     });
  28.     for (size_t i{0} ; i < nmax ; ++i) {
  29.     	std::cout << vect1[i] << endl;
  30.     }
  31. 	return 0;
  32. }
Success #stdin #stdout 0s 4512KB
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https://ideone.com/kvh2il
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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