Switch from `typedef` to `using` in C++ code. NFC (#5258)

This is more modern and (IMHO) easier to read than that old C typedef
syntax.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/support/insert_ordered.h b/src/support/insert_ordered.h
index 6b0f54968..1460c4329 100644
--- a/src/support/insert_ordered.h
+++ b/src/support/insert_ordered.h
@@ -32,7 +32,7 @@ template<typename T> struct InsertOrderedSet {
   std::unordered_map<T, typename std::list<T>::iterator> Map;
   std::list<T> List;
 
-  typedef typename std::list<T>::iterator iterator;
+  using iterator = typename std::list<T>::iterator;
   iterator begin() { return List.begin(); }
   iterator end() { return List.end(); }
 
@@ -87,7 +87,7 @@ template<typename Key, typename T> struct InsertOrderedMap {
     Map;
   std::list<std::pair<const Key, T>> List;
 
-  typedef typename std::list<std::pair<const Key, T>>::iterator iterator;
+  using iterator = typename std::list<std::pair<const Key, T>>::iterator;
   iterator begin() { return List.begin(); }
   iterator end() { return List.end(); }