Added missing references

src/scheduler/Scheduler.cpp

@@ -316,7 +316,7 @@ void Aidge::SequentialScheduler::generateEarlyLateScheduling(std::vector<StaticS
         }
 
         // Node can be run the earliest just after its latest parent was run
-        for (const auto parent : node->getParents()) {
+        for (const auto& parent : node->getParents()) {
             // Find parent node latest scheduled position
             const auto it = std::find_if(schedule.rend() - elt, schedule.rend(),
                 [parent](const auto& v) { return (v.node == parent); });
@@ -343,7 +343,7 @@ void Aidge::SequentialScheduler::generateEarlyLateScheduling(std::vector<StaticS
         }
 
         // Node can be run the latest just before its earliest child is run
-        for (const auto child : node->getChildren()) {
+        for (const auto& child : node->getChildren()) {
             // Find child node earliest scheduled position
             const auto it = std::find_if(schedule.begin() + elt + 1, schedule.end(),
                 [child](const auto& v) { return (v.node == child); });