From 506fc3bc9f4300d3b82f574dc77e4dc49f43ac27 Mon Sep 17 00:00:00 2001
From: Christian Heinrich <franz-christian.heinrich@inria.fr>
Date: Thu, 15 Mar 2018 11:19:52 +0100
Subject: [PATCH] [SMPI] Added comment regard Datatype::keyvals

---
 src/smpi/mpi/smpi_datatype.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/smpi/mpi/smpi_datatype.cpp b/src/smpi/mpi/smpi_datatype.cpp
index 7f5470a34f..5beb552b79 100644
--- a/src/smpi/mpi/smpi_datatype.cpp
+++ b/src/smpi/mpi/smpi_datatype.cpp
@@ -97,8 +97,8 @@ CREATE_MPI_DATATYPE(MPI_PTR, void*);
 namespace simgrid{
 namespace smpi{
 
-std::unordered_map<int, smpi_key_elem> Datatype::keyvals_;
-int Datatype::keyval_id_=0;
+std::unordered_map<int, smpi_key_elem> Datatype::keyvals_; // required by the Keyval class implementation
+int Datatype::keyval_id_=0; // required by the Keyval class implementation
 
 Datatype::Datatype(int size,MPI_Aint lb, MPI_Aint ub, int flags) : name_(nullptr), size_(size), lb_(lb), ub_(ub), flags_(flags), refcount_(1){
 #if SIMGRID_HAVE_MC
-- 
2.20.1