[svn-r10951] Purpose:

    Bug fix

Description:
    Hyperslab selections that had a selection offset and were applied to a
chunked dataset could get into an infinite loop or core dump if the same
selection was used multiple times, with different selection offsets.

Solution:
    "Normalize" the selection with the selection offset, generate the
selections for the chunks overlapped and then "denormalize" the selection.

Platforms tested:
    FreeBSD 4.11 (sleipnir)
    Too minor to require h5committest

1 files changed, 2 insertions, 1 deletions

diff --git a/src/H5Sprivate.h b/src/H5Sprivate.h
index 06c9f02..ac6a297 100644
--- a/src/H5Sprivate.h
+++ b/src/H5Sprivate.h
@@ -258,7 +258,8 @@ H5_DLL htri_t H5S_hyper_intersect_block (H5S_t *space, hsize_t *start, hsize_t *
 H5_DLL herr_t H5S_hyper_adjust_u(H5S_t *space, const hsize_t *offset);
 H5_DLL herr_t H5S_hyper_adjust_s(H5S_t *space, const hssize_t *offset);
 H5_DLL herr_t H5S_hyper_move(H5S_t *space, const hssize_t *offset);
-H5_DLL herr_t H5S_hyper_normalize_offset(H5S_t *space);
+H5_DLL herr_t H5S_hyper_normalize_offset(H5S_t *space, hssize_t *old_offset);
+H5_DLL herr_t H5S_hyper_denormalize_offset(H5S_t *space, const hssize_t *old_offset);
 
 /* Operations on selection iterators */
 H5_DLL herr_t H5S_select_iter_init(H5S_sel_iter_t *iter, const H5S_t *space, size_t elmt_size);