File default constructor

[gouarin]

Hi,
I would like to create a c++ class with a HighFive::File attribute. This attribute is created in a different way depending on the options given by the user: it can be an hdf5 file with MPIOFileAccess property or each process opens its own hdf5 file.
Unfortunately, it's not possible to do that because the default File constructor is protected. Could you explain why you made this choice?
Thanks

[1uc]

A typical way to get around this type of limitation is:

class ObjWithFile {
public:
  ObjWithFile(...) : _file(open_file(...)) {}

protected:
  static HighFive::File open_file(...) {
    if(...) {
      return HighFive::File(...);
    } else {
      return HighFive::File(...);
    }
private:
  HighFive::File _file;
};

The choice is between preventing incorrectly initialized objects; and programming convenience in cases such as the one you describe.

[gouarin]

Thanks @1uc for your quick reply and the tip!