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  1. #include <type_traits>
  2.  
  3. template<int N>
  4. struct vec1 { double v[N]; }; // コンストラクター無し版。
  5.  
  6.  
  7. template<int N>
  8. struct vec2 // コンストラクター使用版。
  9. {
  10. 	double v[N];
  11.  
  12. 	template<typename... T>
  13. 	constexpr vec2(T... d) : v{ static_cast<double>(d)... }
  14. 	{
  15. 	}
  16. };
  17.  
  18. int main()
  19. {
  20. 	vec1<3> v1{ 1.1f, 2, false };
  21. 	vec2<3> v2{ 1.1f, 2, false };
  22. }
  23.  
Success #stdin #stdout 0s 16064KB
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https://ideone.com/MjE67k
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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