core: Minor comments added

1 files changed, 6 insertions, 0 deletions

diff --git a/modules/core/c++/id_map.h b/modules/core/c++/id_map.h
index d8329cf..9ad2847 100644
--- a/modules/core/c++/id_map.h
+++ b/modules/core/c++/id_map.h
@@ -32,10 +32,16 @@ private:
 		 */
 		void reduce_free_ids() noexcept {
 				for(;;){
+						/**
+						 * If we have no free ids left, we also have nothing to reduce
+						 */
 						if(free_ids_.empty()){
 								break;
 						}
 
+						/**
+						 * The front contains the highest free id.
+						 */
 						if((free_ids_.front().get_value() + 1) < data_.size()){
 								break;
 						}