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-rw-r--r--test/trefer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/test/trefer.c b/test/trefer.c
index 04b34eb..dec049e 100644
--- a/test/trefer.c
+++ b/test/trefer.c
@@ -568,7 +568,7 @@ test_reference_region(H5F_libver_t libver_low, H5F_libver_t libver_high)
hsize_t high[SPACE2_RANK]; /* Selection bounds */
H5R_ref_t *wbuf, /* buffer to write to disk */
*rbuf; /* buffer read from disk */
- H5R_ref_t nvrbuf[3]={{{0}},{{101}},{{255}}}; /* buffer with non-valid refs */
+ H5R_ref_t nvrbuf[3]={{{0}},{{101}},{{-128}}}; /* buffer with non-valid refs */
uint8_t *dwbuf, /* Buffer for writing numeric data to disk */
*drbuf; /* Buffer for reading numeric data from disk */
uint8_t *tu8; /* Temporary pointer to uint8 data */