Add missing const specifiers.

src/xt/xt_request_msgs.h

@@ -58,7 +58,7 @@
  * @remark ownership of the MPI requests is passed to the Xt_request object,
  *         however the caller remains the owner of the requests array
  */
-Xt_request xt_request_msgs_new(int n, MPI_Request *requests,
+Xt_request xt_request_msgs_new(int n, const MPI_Request requests[n],
                                MPI_Comm comm);
 
 #endif // XT_REQUEST_MSGS_H

src/xt/xt_request_msgs_packed.h

@@ -71,13 +71,14 @@
  *         however the caller remain the owner of the packed_data and
  *         tmp_buffers array
  */
-Xt_request xt_request_msgs_packed_new(int n_requests, MPI_Request * requests,
+Xt_request xt_request_msgs_packed_new(int n_requests,
+                                      const MPI_Request requests[n_requests],
                                       MPI_Comm comm, int n_packed,
                                       int n_tmp_buffers,
-                                      MPI_Datatype * datatypes,
-                                      void ** packed_data,
-                                      void ** tmp_buffers,
-                                      void * unpacked_data);
+                                      const MPI_Datatype datatypes[n_packed],
+                                      void *packed_data[n_packed],
+                                      void *tmp_buffers[n_tmp_buffers],
+                                      void *unpacked_data);
 
 #endif // XT_REQUEST_MSGS_PACKED_H
 

src/xt_request_msgs.c

@@ -69,18 +69,18 @@ static const struct Xt_request_vtable request_msgs_vtable = {
   .test = xt_request_msgs_test,
 };
 
-typedef struct Xt_request_msgs_ * Xt_request_msgs;
+typedef struct Xt_request_msgs_ *Xt_request_msgs;
 
 struct Xt_request_msgs_ {
 
-  const struct Xt_request_vtable * vtable;
+  const struct Xt_request_vtable *vtable;
   int n;
   MPI_Comm comm;
-  int * ops_completed_buffer;
+  int *ops_completed_buffer;
   MPI_Request requests[];
 };
 
-Xt_request xt_request_msgs_new(int n, MPI_Request * requests,
+Xt_request xt_request_msgs_new(int n, const MPI_Request *requests,
                                MPI_Comm comm) {
 
   assert(n >= 0);

src/xt_request_msgs_packed.c

@@ -82,10 +82,11 @@ struct Xt_request_msgs_packed_ {
   void * unpacked_data;
 };
 
-Xt_request xt_request_msgs_packed_new(int n_requests, MPI_Request * requests,
+Xt_request xt_request_msgs_packed_new(int n_requests,
+                                      const MPI_Request *requests,
                                       MPI_Comm comm, int n_packed,
                                       int n_tmp_buffers,
-                                      MPI_Datatype * datatypes,
+                                      const MPI_Datatype * datatypes,
                                       void ** packed_data,
                                       void ** tmp_buffers,
                                       void * unpacked_data) {