Compilare: main.cpp: In function 'int main()': main.cpp:82:7: warning: unused variable 'p' [-Wunused-variable] 82 | Dbl p, val; | ^ main.cpp:82:10: warning: unused variable 'val' [-Wunused-variable] 82 | Dbl p, val; | ^~~ main.cpp: In instantiation of 'Matrix_impl<T, N>::Matrix_impl() [with T = long double; long unsigned int N = 60]': main.cpp:75:8: required from here main.cpp:14:23: warning: 'Matrix_impl<long double, 60>::m_cols' will be initialized after [-Wreorder] 14 | std::size_t m_rows, m_cols; | ^~~~~~ main.cpp:13:35: warning: 'std::array<std::array<long double, 60>, 60> Matrix_impl<long double, 60>::m_data' [-Wreorder] 13 | std::array<std::array<T, N>, N> m_data; | ^~~~~~ main.cpp:17:3: warning: when initialized here [-Wreorder] 17 | Matrix_impl() : m_rows{N}, m_cols{N}, m_data{} {}; | ^~~~~~~~~~~ main.cpp: In instantiation of 'static constexpr Matrix_impl<T, N> Matrix_impl<T, N>::I(size_t) [with T = long double; long unsigned int N = 60; size_t = long unsigned int]': main.cpp:99:18: required from here main.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'const size_t' {aka 'const long unsigned int'} [-Wsign-compare] 30 | for (int i = 0; i < dim; ++i) { | ~~^~~~~ main.cpp: In instantiation of 'Matrix_impl<T, N>::Matrix_impl(std::size_t, std::size_t) [with T = long double; long unsigned int N = 60; std::size_t = long unsigned int]': main.cpp:29:17: required from 'static constexpr Matrix_impl<T, N> Matrix_impl<T, N>::I(size_t) [with T = long double; long unsigned int N = 60; size_t = long unsigned int]' main.cpp:99:18: required from here main.cpp:14:23: warning: 'Matrix_impl<long double, 60>::m_cols' will be initialized after [-Wreorder] 14 | std::size_t m_rows, m_cols; | ^~~~~~ main.cpp:13:35: warning: 'std::array<std::array<long double, 60>, 60> Matrix_impl<long double, 60>::m_data' [-Wreorder] 13 | std::array<std::array<T, N>, N> m_data; | ^~~~~~ main.cpp:19:3: warning: when initialized here [-Wreorder] 19 | Matrix_impl(const std::size_t rows, const std::size_t cols) | ^~~~~~~~~~~