fork download
copy 
  1. #include <string>
  2. #include <iostream>
  3.  
  4. struct Foo {
  5. 	char c;
  6. 	void set(std::string s) {c = s[0];}; // We don't really care here
  7. };
  8. struct Bar {
  9. 	int n;
  10. 	void set(std::string s) {n = s.size();}; // We don't really care here
  11. };
  12.  
  13. template<typename T>
  14. struct Identified {
  15.     T model;
  16.     std::string id;
  17. };
  18.  
  19. template<typename T>
  20. Identified<T> GetIdentifiedModel(std::string id) {
  21.     Identified<T> result;
  22.     result.id = id;
  23.     // Obviously shouldn't be ID but for the example
  24.     result.model.set(id);  // Common method for T
  25.     return result;
  26. }
  27.  
  28. void assert(bool b) {
  29. 	if (b) std::cout << "OK" << std::endl;
  30. 	else std::cout << "There is a problem !" << std::endl;
  31. };
  32.  
  33. int main() {
  34. 	auto fooWithID = GetIdentifiedModel<Foo>("foo id");
  35. 	auto barWithID = GetIdentifiedModel<Bar>("bar");
  36. 	assert (fooWithID.model.c == 'f');
  37. 	assert (barWithID.model.n == 3);
  38. 	return (0);
  39. }
Success #stdin #stdout 0s 3472KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
OK
OK
https://ideone.com/rqpsQb
language:
C++14 (gcc 8.3)
created:
7 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!