--- /dev/null
+/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
+/*
+ *
+ * (C) 2015 by Argonne National Laboratory.
+ * See COPYRIGHT in top-level directory.
+ */
+#include <mpi.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "mpitest.h"
+
+/* tests multiple invocations of MPI_Type_free_keyval on the same keyval */
+
+int delete_fn(MPI_Comm comm, int keyval, void *attr, void *extra);
+int delete_fn(MPI_Comm comm, int keyval, void *attr, void *extra)
+{
+ MPI_Type_free_keyval(&keyval);
+ return MPI_SUCCESS;
+}
+
+int main(int argc, char **argv)
+{
+ MPI_Datatype type;
+ MPI_Datatype type_dup;
+ int keyval = MPI_KEYVAL_INVALID;
+ int keyval_copy = MPI_KEYVAL_INVALID;
+ int errs = 0;
+
+ MTest_Init(&argc, &argv);
+ MPI_Type_dup(MPI_INT, &type);
+ MPI_Type_dup(MPI_INT, &type_dup);
+
+ MPI_Type_create_keyval(MPI_NULL_COPY_FN, delete_fn, &keyval, NULL);
+ keyval_copy = keyval;
+ MPI_Type_set_attr(type, keyval, NULL);
+ MPI_Type_set_attr(type_dup, keyval, NULL);
+
+ MPI_Type_free(&type); /* first MPI_Type_free_keyval */
+ MPI_Type_free_keyval(&keyval); /* second MPI_Type_free_keyval */
+ MPI_Type_free_keyval(&keyval_copy); /* third MPI_Type_free_keyval */
+ MPI_Type_free(&type_dup); /* fourth MPI_Type_free_keyval */
+ MTest_Finalize(errs);
+ MPI_Finalize();
+ return 0;
+}