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  1. #include <iostream>
  2.  
  3.  
  4. template<typename, int Value>
  5. struct parent {
  6.  
  7.    void foo() const {
  8.       std::clog << "parent: " << Value << std::endl;
  9.    }
  10. };
  11.  
  12. template<typename, int>
  13. struct child;
  14.  
  15. template<int Value>
  16. struct child<int, Value> : parent<int, Value> {
  17.  
  18.    void bar() const {
  19.       this->foo();
  20.       std::clog << "child: int, " << Value << std::endl;
  21.    }
  22. };
  23.  
  24. template<int Value>
  25. struct child<char, Value> : parent<char, Value> {
  26.  
  27.    void bar() const {
  28.       this->foo();
  29.       std::clog << "child: char, " << Value << std::endl;
  30.    }
  31. };
  32.  
  33.  
  34. int main() {
  35.    child<int, 1>().bar();
  36.    child<char, 2>().bar();
  37. }
  38.  
Success #stdin #stdout #stderr 0s 3292KB
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Standard input is empty
stdout
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Standard output is empty
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parent: 1
child: int, 1
parent: 2
child: char, 2
https://ideone.com/yoWDrt
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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