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-rw-r--r--src/H5Dio.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/H5Dio.c b/src/H5Dio.c
index d9bc1e9..55e66fc 100644
--- a/src/H5Dio.c
+++ b/src/H5Dio.c
@@ -741,11 +741,14 @@ H5D_write(H5D_t *dataset, const H5T_t *mem_type, const H5S_t *mem_space,
/* If MPI based VFD is used, no VL datatype support yet. */
/* This is because they use the global heap in the file and we don't */
/* support parallel access of that yet */
- if (IS_H5FD_MPI(dataset->ent.file) && H5T_get_class(mem_type)==H5T_VLEN)
+ if (IS_H5FD_MPI(dataset->ent.file) && H5T_detect_class(mem_type, H5T_VLEN)>0)
HGOTO_ERROR (H5E_DATASET, H5E_UNSUPPORTED, FAIL, "Parallel IO does not support writing VL datatypes yet")
/* If MPI based VFD is used, no VL datatype support yet. */
/* This is because they use the global heap in the file and we don't */
/* support parallel access of that yet */
+ /* We should really use H5T_detect_class() here, but it will be difficult
+ * to detect the type of the reference if it is nested... -QAK
+ */
if (IS_H5FD_MPI(dataset->ent.file) &&
H5T_get_class(mem_type)==H5T_REFERENCE &&
H5T_get_ref_type(mem_type)==H5R_DATASET_REGION)