Fix cast warning

Author: Christos Konstantinos Matzoros

include/osp/bsp/scheduler/GreedySchedulers/GreedyVarianceSspScheduler.hpp

@@ -75,7 +75,14 @@ class GreedyVarianceSspScheduler : public MaxBspScheduler<Graph_t> {
             }
             temp = std::log(temp) / 2 + max_priority;
 
-            double node_weight = std::log((double)std::max(graph.vertex_work_weight(*r_iter), static_cast<v_workw_t<Graph_t>>(1)));
+            double node_weight = std::log(
+                static_cast<double>(
+                    std::max(
+                        graph.vertex_work_weight(*r_iter),
+                        static_cast<v_workw_t<Graph_t>>(1)
+                    )
+                )
+            );
             double larger_val = node_weight > temp ? node_weight : temp;
 
             work_variance[*r_iter] =