Checking if file exists without having error message

HDF5 Library
1

I am trying to write data into a HDF5 file. And I want to check if the file already exists before I write. So I checked the status of H5Fopen.

file_id = H5Fopen(FILE2, H5F_ACC_RDWR, H5P_DEFAULT);
if (file_id < 0 ) {…}

But I always got the error message from function H5Fopen saying “unable to open to file”. Is there any way to check without having such message?

2

You could wrap your call to H5Fopen() in H5E_BEGIN_TRY / H5E_END_TRY.

Quincey
3

Thank you! It works.