[svn-r10832] Purpose:

    Bug fix

Description:
    Fix problems with hyperslab operations with hyperslabs that have count == 0
or block == 0 values. (bugzilla #294)

Solution:
    Detect zero sized selections and translate into appropriate action on the
current hyperslab, rather than go through the formality of generating span
trees with zero-sized spans, etc.

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

1 files changed, 8 insertions, 0 deletions

diff --git a/test/tselect.c b/test/tselect.c
index 3f2083b..1801e0c 100644
--- a/test/tselect.c
+++ b/test/tselect.c
@@ -281,6 +281,14 @@ test_select_hyper(hid_t xfer_plist)
     ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
     CHECK(ret, FAIL, "H5Sselect_hyperslab");
 
+    /* Select 0x26 hyperslab to OR into current selection (should be a NOOP) */
+    start[0]=0; start[1]=0;
+    stride[0]=1; stride[1]=1;
+    count[0]=0; count[1]=26;
+    block[0]=1; block[1]=1;
+    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_OR,start,stride,count,block);
+    CHECK(ret, FAIL, "H5Sselect_hyperslab");
+
     /* Read selection from disk */
     ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer_plist,rbuf);
     CHECK(ret, FAIL, "H5Dread");