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  1. #include <iostream>
  2. #include <initializer_list>
  3. #include <vector>
  4.  
  5. template<class T> class Matrix {
  6. public:
  7. 	Matrix() {std::cout << "Matrix() " << this << std::endl;}
  8. 	Matrix(int width,int height):w(width),h(height) {std::cout << "Matrix(" << w << "x" << h << ") " << this << std::endl;}
  9. 	~Matrix() {std::cout << "Matrix(" << w << "x" << h << ") " << this << " goodbye" << std::endl;}
  10. private:
  11. 	int w,h;
  12. };
  13.  
  14. class NN {
  15. public:
  16. 	NN()=default;
  17. 	NN(const std::initializer_list<size_t> &l);
  18. private:
  19. 	std::vector<Matrix<double>> m_weights;
  20. };
  21.  
  22. NN::NN(const std::initializer_list<size_t> &l) {
  23. 	m_weights.reserve(l.size()-1); // or deal with move constructors
  24. 	auto itr = l.begin();
  25.     for (auto next = itr + 1; next != l.end(); ++next, ++itr)
  26.     {
  27.         m_weights.emplace_back(*next, *itr);
  28.     }
  29. }
  30.  
  31. int main() {
  32. 	NN test{2,3,3,2};
  33. 	return 0;
  34. }
  35.  
Success #stdin #stdout 0s 4532KB
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stdin
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Standard input is empty
stdout
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Matrix(3x2) 0x5638f59aae70
Matrix(3x3) 0x5638f59aae78
Matrix(2x3) 0x5638f59aae80
Matrix(3x2) 0x5638f59aae70 goodbye
Matrix(3x3) 0x5638f59aae78 goodbye
Matrix(2x3) 0x5638f59aae80 goodbye
https://ideone.com/yHGAMc
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
secret

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