Apply clang-format on previously renamed files.

[simgrid.git] / src / smpi / colls / coll_tuned_topo.cpp

diff --git a/src/smpi/colls/coll_tuned_topo.cpp b/src/smpi/colls/coll_tuned_topo.cpp
index aa797a9..06a23b4 100644 (file)
--- a/src/smpi/colls/coll_tuned_topo.cpp
+++ b/src/smpi/colls/coll_tuned_topo.cpp
@@ -19,8 +19,8 @@
  * Additional copyrights may follow
  */
 
-#include "colls_private.h"
-#include "coll_tuned_topo.h"
+#include "coll_tuned_topo.hpp"
+#include "colls_private.hpp"
 /*
  * Some static helpers.
  */
@@ -52,7 +52,10 @@ static int calculate_num_nodes_up_to_level( int fanout, int level )
 {
     /* just use geometric progression formula for sum:
        a^0+a^1+...a^(n-1) = (a^n-1)/(a-1) */
-    return ((pown(fanout,level) - 1)/(fanout - 1));
+  if(fanout > 1)  
+   return ((pown(fanout,level) - 1)/(fanout - 1));
+  else
+   return 0; // is this right ?
 }
 
 /*