https://github.com/iPapatsoris/Maximum-Independent-Set/pull/2

foo.patch

diff --git a/src/Graph.cpp b/src/Graph.cpp
index e4385fb..7431ce3 100644
--- a/src/Graph.cpp
+++ b/src/Graph.cpp
@@ -709,6 +709,7 @@ bool Graph::getEffectiveNodeOrOptimalFunnel(uint32_t &effectiveNode, uint32_t &n
             }
         }
     }
+    return true;
 }
 
 bool Graph::getGoodFunnel(uint32_t &node1, uint32_t &node2) const {
diff --git a/src/Graph.hpp b/src/Graph.hpp
index 9e49d7e..6b1ac36 100644
--- a/src/Graph.hpp
+++ b/src/Graph.hpp
@@ -167,6 +167,7 @@ public:
                 removedNeighbors.insert(removedNeighbors.end(), (*edgeBuffer)[offset]);
             }
         }
+	return true;
     }
 
     template <typename Container, typename OriginalNodesContainer>
diff --git a/src/Reductions.cpp b/src/Reductions.cpp
index 34274b8..a89b7fb 100644
--- a/src/Reductions.cpp
+++ b/src/Reductions.cpp
@@ -148,6 +148,7 @@ bool Reductions::removeDominatedNodes2(const uint32_t &theta) {
             }
         }
     }
+    return true;
 }
 
 bool Reductions::removeDesks() {