drest | easily expose Doctrine entities as REST resource endpoints | REST library

template
struct MatrixView {
  MatrixView operator[](std::size_t i) {
    return {ptr + i* *strides, strides+1};
  }
  MatrixView( T* p, std::size_t const* stride ):ptr(p), strides(stride) {}
private:
  T* ptr = 0;
  std::size_t const* strides = 0;
};
template
struct MatrixView {
  T& operator[](std::size_t i) {
    return ptr[i];
  }
  MatrixView( T* p, std::size_t const* stride ):ptr(p) {}
private:
  T* ptr = 0;
};
template
struct Matrix {
  Matrix( std::array sizes ) {
    std::size_t accumulated = 1;
    for (std::size_t i = 1; i < sizes.size(); ++i) {
      accumulated *= sizes[N-i];
      strides[N-i] = accumulated;
    }
    storage.resize( strides[0] * sizes[0] );
  }
  MatrixView get() { return {storage.data(), strides.data()}; }
  MatrixView get() const { return {storage.data(), strides.data()}; }
private:
  std::vector storage;
  std::array strides;
};