cyber: fix mismatch type var comparison and add missing header file. (#6805)

cyber/base/bounded_queue.h

@@ -77,7 +77,7 @@ BoundedQueue<T>::~BoundedQueue() {
     BreakAllWait();
   }
   if (pool_) {
-    for (int i = 0; i < pool_size_; ++i) {
+    for (uint64_t i = 0; i < pool_size_; ++i) {
       pool_[i].~T();
     }
     std::free(pool_);
@@ -97,7 +97,7 @@ bool BoundedQueue<T>::Init(uint64_t size, WaitStrategy* strategy) {
   if (pool_ == nullptr) {
     return false;
   }
-  for (int i = 0; i < pool_size_; ++i) {
+  for (uint64_t i = 0; i < pool_size_; ++i) {
     new (&(pool_[i])) T();
   }
   wait_strategy_.reset(strategy);

cyber/class_loader/class_loader.h

@@ -17,6 +17,7 @@
 #define CYBER_CLASS_LOADER_CLASS_LOADER_H_
 
 #include <algorithm>
+#include <functional>
 #include <memory>
 #include <mutex>
 #include <string>

cyber/class_loader/class_loader_manager.h

@@ -17,6 +17,7 @@
 #ifndef CYBER_CLASS_LOADER_CLASS_LOADER_MANAGER_H_
 #define CYBER_CLASS_LOADER_CLASS_LOADER_MANAGER_H_
 
+#include <functional>
 #include <map>
 #include <memory>
 #include <mutex>

cyber/timer/timing_wheel.h

@@ -18,6 +18,7 @@
 #define CYBER_TIMER_TIMING_WHEEL_H_
 
 #include <algorithm>
+#include <functional>
 #include <iostream>
 #include <list>
 #include <map>