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Changes in V4.3  

The following describes the most significant changes which occurred in HDS between versions V4.2 and V4.3 (the current version).

1.
A change has been made to the way that data pointers are allocated by HDS, so that the new CNF_PVAL function (described in SUN/209) may be used when passing pointers using the "%VAL" facility (see §[*]). Use of this function remains optional on currently-supported platforms, but it may be required if Fortran software which holds pointers in INTEGER variables is required to run in circumstances where memory pointers require a longer variable for storage. Use of CNF_PVAL is recommended in all new Fortran software which uses HDS pointers.

2.
The maximum number of objects which may be simultaneously mapped via CMP_ routines has been increased to 1024.

3.
This document (SUN/92) has been updated to reflect the above changes.


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Next: About this document ...
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HDS Hierarchical Data System
Starlink User Note 92
R.F. Warren-Smith & M.D. Lawden
23rd February 1999
E-mail:rfws@star.rl.ac.uk

Copyright (C) 1999 Central Laboratory of the Research Councils