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  1. #include <iostream>
  2.  
  3. template<typename T>
  4. T sum(T v)
  5. {
  6.   return v;
  7. }
  8.  
  9. template<typename T, typename... Args>
  10. T sum(T first, Args... args)
  11. {
  12.   return first + sum(args...);
  13. }
  14.  
  15. int main()
  16. {
  17.   long lsum = sum(1, 2, 3, 4, 5);
  18.  
  19.   std::string s1 = "He", s2 = "llo ", s3 = "Wor", s4 = "ld";
  20.   std::string ssum = sum(s1, s2, s3, s4);
  21.  
  22.   std::cout << lsum << std::endl
  23.             << ssum << std::endl;
  24.   return 0;
  25. }
  26.  
Success #stdin #stdout 0s 3232KB
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Standard input is empty
stdout
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15
Hello World
https://ideone.com/39C0k7
Advanced CPP: Template techniques
Variadic templates
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
secret

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