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  1. #include <iostream>
  2.  
  3. template <typename T>
  4. void test(T&& arg)
  5. {
  6. 	arg += arg;
  7. }
  8.  
  9. int main() {
  10. 	int i = 12; 
  11. 	std::string s("ab"); 
  12. 	std::cout << "i = " << i << "   s = " << s << std::endl;
  13. 	test(i);
  14. 	std::cout << "i = " << i << std::endl;
  15. 	test((int)i);
  16. 	std::cout << "i = " << i << std::endl;
  17. 	test(s);
  18. 	std::cout << "s = " << s << std::endl;
  19. 	test((std::string)s);
  20. 	std::cout << "s = " << s << std::endl;
  21. 	return 0;
  22. }
Success #stdin #stdout 0s 3472KB
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stdin
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Standard input is empty
stdout
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i = 12   s = ab
i = 24
i = 24
s = abab
s = abab
https://ideone.com/VeQeyM
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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