Fix the unsigned at L503

clin99 · clin99 · commit e3f04c96d038 · 2018-12-28T17:47:41.000-06:00
diff --git a/taskflow/threadpool/workstealing_threadpool.hpp b/taskflow/threadpool/workstealing_threadpool.hpp
@@ -500,7 +500,7 @@ size_t WorkStealingThreadpool<Closure>::num_workers() const {
 template <typename Closure>
 void WorkStealingThreadpool<Closure>::_balance_load(unsigned me) {
 
-  auto n = _workers[me].queue.size();
+  unsigned n = _workers[me].queue.size();
 
   // return if no idler - this might not be the right value
   // but it doesn't affect the correctness
