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  1. #include <iostream>
  2. #include <stdexcept>
  3.  
  4. namespace documentation {
  5. 	struct Page {
  6. 		char const * text;
  7. 	};
  8.  
  9. 	// Print at printer, costs hundreds of dollars because it's an awesome printer
  10. 	void print(Page const &) {
  11. 		throw std::logic_error{"WTF! Who turned on the printer!?!"};
  12. 	}
  13.  
  14. 	// Write on screen
  15. 	std::ostream & operator<<(std::ostream & s, Page const & p) {
  16. 		return (s << p.text);
  17. 	}
  18. }
  19.  
  20. namespace IO {
  21.  
  22.     template <typename T>
  23.     void print(const T& input)
  24.     {
  25.         std::cout << input << ' ';
  26.     }
  27.  
  28.  
  29.     template <typename T, typename... Types>
  30.     void print(const T& firstArg, const Types&... arguments)
  31.     {
  32.         std::cout << firstArg << ' ';
  33.         print(arguments...);
  34.     }
  35. }
  36.  
  37.  
  38. int main() {
  39. 	try {
  40. 		documentation::Page p {"Some nice text"};
  41. 		IO::print("Introduction: ", p);
  42. 	} catch (std::exception const & e) {
  43. 		std::cout << "ERROR: " << e.what() << std::endl;
  44. 	}
  45. }
Success #stdin #stdout 0s 15240KB
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Introduction:  ERROR: WTF! Who turned on the printer!?!
https://ideone.com/TdJs8b
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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