fork(1) download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. typedef bool (*fnPkCheck)(void);
  5.  
  6. template<int N>
  7. struct data {
  8.     fnPkCheck checkers[N];
  9. };
  10.  
  11. template<fnPkCheck ... A>
  12. class packet
  13. {
  14. public:
  15.     packet() : m_data {{A...}}
  16.     { }
  17.  
  18.     bool check() {
  19.         for (int i = 0; i < sizeof(m_data.checkers) / sizeof(fnPkCheck); i++) {
  20.             if (!m_data.checkers[i]())
  21.                 return false;
  22.         }
  23.         return true;
  24.     }
  25.  
  26. private:
  27.     const data<sizeof...(A)> m_data;
  28. };
  29.  
  30. bool check1() {
  31. 	std::cout << __FUNCTION__ << "\n";
  32.     return true;
  33. }
  34.  
  35. bool check2() {
  36. 	std::cout << __FUNCTION__ << "\n";
  37.     return true;
  38. }
  39.  
  40. bool check3() {
  41. 	std::cout << __FUNCTION__ << "\n";
  42.     return true;
  43. }
  44.  
  45. int main() {
  46. 	// your code goes here
  47. 	packet<check1, check2> c1;
  48. 	packet<check3, check1, check2, check2, check3> c2;
  49. 	c1.check();
  50. 	c2.check();
  51. 	return 0;
  52. }
Success #stdin #stdout 0s 3412KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
check1
check2
check3
check1
check2
check2
check3
https://ideone.com/NbRQEu
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!