HDF5DotNet H5P::create(H5P.PropertyListClass.FILE_ACCESS) fails i.e. returns -1

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1

I'm calling H5P::create(H5P.PropertyListClass.FILE_ACCESS) but the internal
call to H5Pcreate is failing and returning -1.

I've looked the 'H5P::create' in the HDF5DotNet.dll code and the *'classId'*
which is used as follows 'hid_t id = H5Pcreate(static_cast<int>(classId));'
*doesn't appear to be getting set correctly* i.e. it's remains at -1.

It should be getting set, in this case, to 'H5P_CLS_FILE_ACCESS_g.'

'H5P_CLS_FILE_ACCESS_g' is defined as 'H5_DLLVAR hid_t
H5P_CLS_FILE_ACCESS_g' in H5Ppublic.h. However, for some reason (compiler
option?) the HDF5DotNet dll doesn't know its value.

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2

Mark, have you tried calling H5::Open() before making any other calls to
HDF5?
BTW, which HDF5DotNet/OS version are you using?

G.

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-----Original Message-----
From: hdf-forum-bounces@hdfgroup.org [mailto:hdf-forum-bounces@hdfgroup.org]
On Behalf Of Mark Page
Sent: Monday, June 18, 2012 10:34 AM
To: hdf-forum@hdfgroup.org
Subject: [Hdf-forum] HDF5DotNet
H5P::create(H5P.PropertyListClass.FILE_ACCESS) fails i.e. returns -1

I'm calling H5P::create(H5P.PropertyListClass.FILE_ACCESS) but the internal
call to H5Pcreate is failing and returning -1.

I've looked the 'H5P::create' in the HDF5DotNet.dll code and the *'classId'*
which is used as follows 'hid_t id = H5Pcreate(static_cast<int>(classId));'
*doesn't appear to be getting set correctly* i.e. it's remains at -1.

It should be getting set, in this case, to 'H5P_CLS_FILE_ACCESS_g.'

'H5P_CLS_FILE_ACCESS_g' is defined as 'H5_DLLVAR hid_t
H5P_CLS_FILE_ACCESS_g' in H5Ppublic.h. However, for some reason (compiler
option?) the HDF5DotNet dll doesn't know its value.

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Class-FILE-ACCESS-fails-i-e-returns-1-tp4025153.html
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3

G, Thanks for your answer. Calling H5.Open initialises everything for me and
calling H5P.create(H5P.PropertyListClass.FILE_ACCESS) now works ok.

Many Thanks,

Mark

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