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!****h* ROBODoc/H5LIB_PROVISIONAL
!
! NAME
! MODULE H5LIB_PROVISIONAL
!
! PURPOSE
! This file contains helper functions for Fortran 2003 features and is
! only compiled when Fortran 2003 features are enabled, otherwise
! the file H5_ff_F90.f90 is compiled.
!
! COPYRIGHT
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
! Copyright by The HDF Group. *
! Copyright by the Board of Trustees of the University of Illinois. *
! All rights reserved. *
! *
! This file is part of HDF5. The full HDF5 copyright notice, including *
! terms governing use, modification, and redistribution, is contained in *
! the files COPYING and Copyright.html. COPYING can be found at the root *
! of the source code distribution tree; Copyright.html can be found at the *
! root level of an installed copy of the electronic HDF5 document set and *
! is linked from the top-level documents page. It can also be found at *
! http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
! access to either file, you may request a copy from help@hdfgroup.org. *
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
!
! NOTES
! *** IMPORTANT ***
! If you add a new function you must add the function name to the
! Windows dll file 'hdf5_fortrandll.def.in' in the fortran/src directory.
! This is needed for Windows based operating systems.
!*****
MODULE H5LIB_PROVISIONAL
CONTAINS
!****f* H5LIB_PROVISIONAL/h5offsetof
!
! NAME
! h5offsetof
!
! PURPOSE
! Computes the offset in memory
!
! Inputs:
! start - starting pointer address
! end - ending pointer address
!
! Outputs:
! offset - offset of a member within the derived type
!
! AUTHOR
! M. Scot Breitenfeld
! Augest 25, 2008
!
! ACKNOWLEDGEMENTS
! Joe Krahn
!
! Fortran2003 Interface:
FUNCTION h5offsetof(start,end) RESULT(offset)
USE, INTRINSIC :: ISO_C_BINDING
USE H5GLOBAL
IMPLICIT NONE
INTEGER(SIZE_T) :: offset
TYPE(C_PTR), VALUE, INTENT(IN) :: start, end
!*****
INTEGER(C_INTPTR_T) :: int_address_start, int_address_end
int_address_start = TRANSFER(start, int_address_start)
int_address_end = TRANSFER(end , int_address_end )
offset = int_address_end - int_address_start
END FUNCTION h5offsetof
END MODULE H5LIB_PROVISIONAL
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