I am not sure if my solution is the 'one right way', but it seems to work. See
below.
Good luck,
Paul.
subroutine open_or_create_h5group(loc_id, group_name, group_id, hdferr)
! Check if group with the given name exists. Create it if it doesn't,
! open it if it does.
implicit none
integer, intent(in) :: loc_id
character(len=*), intent(in) :: group_name
integer, intent(inout) :: hdferr
integer, intent(out) :: group_id
! Local variables
! Variable for checking if a group exists or not
logical :: group_exists
call h5lexists_f(loc_id, group_name, group_exists, hdferr)
if (group_exists) then
call h5gopen_f(loc_id, group_name, group_id, hdferr)
else
call h5gcreate_f(loc_id, group_name, group_id, hdferr)
end if
end subroutine open_or_create_h5group
On 1. mars 2011, at 10.11, santoshdarekar wrote:
> I am implementing HDF5 where I need to check if given group name exists in
> the file or not. How do I do it?
> I checked using:
>
> H5G_info_t *grpInfo;
> hid_t lapl_id = H5Pcreate(H5P_LINK_ACCESS);
> H5Gget_info_by_name(file_id, groupName, grpInfo, lapl_id);
>
> Please let me know if I can use 'grpInfo' to open existing group?
>
> Actually, what I want is, if the group name doesn't exist then I should
> create new with the same name.
>
> But, if it is there in the file then I should open it..
>
> Is it possible?
>
>
>
> -----
> Best Regards,
> Santosh
> --
> View this message in context:
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>
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