From 30dcd207e3a68158b0af4ed3d6fccf620cfe2966 Mon Sep 17 00:00:00 2001
From: SUTER Frederic <frederic.suter@cc.in2p3.fr>
Date: Mon, 6 Sep 2021 13:55:51 +0200
Subject: [PATCH] do not use unsigned there, -1 is used to indicate there is no
 route between hosts

---
 include/simgrid/kernel/routing/FloydZone.hpp | 2 +-
 src/kernel/routing/FloydZone.cpp             | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/simgrid/kernel/routing/FloydZone.hpp b/include/simgrid/kernel/routing/FloydZone.hpp
index 46f12088c2..990071a265 100644
--- a/include/simgrid/kernel/routing/FloydZone.hpp
+++ b/include/simgrid/kernel/routing/FloydZone.hpp
@@ -23,7 +23,7 @@ namespace routing {
  */
 class XBT_PRIVATE FloydZone : public RoutedZone {
   /* vars to compute the Floyd algorithm. */
-  std::vector<std::vector<unsigned long>> predecessor_table_;
+  std::vector<std::vector<long>> predecessor_table_;
   std::vector<std::vector<unsigned long>> cost_table_;
   std::vector<std::vector<std::unique_ptr<Route>>> link_table_;
 
diff --git a/src/kernel/routing/FloydZone.cpp b/src/kernel/routing/FloydZone.cpp
index feda4acfb5..8de2e8cd46 100644
--- a/src/kernel/routing/FloydZone.cpp
+++ b/src/kernel/routing/FloydZone.cpp
@@ -41,7 +41,7 @@ void FloydZone::get_local_route(const NetPoint* src, const NetPoint* dst, Route*
   std::vector<Route*> route_stack;
   unsigned long cur = dst->id();
   do {
-    int pred = predecessor_table_[src->id()][cur];
+    long pred = predecessor_table_[src->id()][cur];
     if (pred == -1)
       throw std::invalid_argument(xbt::string_printf("No route from '%s' to '%s'", src->get_cname(), dst->get_cname()));
     route_stack.push_back(link_table_[pred][cur].get());
-- 
2.20.1