Avoid tautological-compare

Clang complains about tautological compare: it seems an unsigned
integer is always non-negative.

diff --git a/src/smpi/smpi_mpi_dt.c b/src/smpi/smpi_mpi_dt.c
index 4cd5f64..07bec7c 100644 (file)
--- a/src/smpi/smpi_mpi_dt.c
+++ b/src/smpi/smpi_mpi_dt.c
@@ -150,8 +150,7 @@ CREATE_MPI_DATATYPE(MPI_PTR, void*);
  */
 int is_datatype_valid(MPI_Datatype datatype) {
     return datatype != MPI_DATATYPE_NULL
  */
 int is_datatype_valid(MPI_Datatype datatype) {
     return datatype != MPI_DATATYPE_NULL

-        && (datatype->flags & DT_FLAG_COMMITED)
-        && (smpi_datatype_size(datatype)>=0);
+        && (datatype->flags & DT_FLAG_COMMITED);

 }
 
 size_t smpi_datatype_size(MPI_Datatype datatype)
 }
 
 size_t smpi_datatype_size(MPI_Datatype datatype)