From 11cb1ccdc46a75610f8d42914d8b3409e7d3919c Mon Sep 17 00:00:00 2001
From: Florian Albrechtskirchinger <falbrechtskirchinger@gmail.com>
Date: Wed, 29 Jun 2022 08:17:11 +0200
Subject: [PATCH] Fix ordered_map::erase(first, last) with first == last

---
 include/nlohmann/ordered_map.hpp | 5 +++++
 single_include/nlohmann/json.hpp | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/include/nlohmann/ordered_map.hpp b/include/nlohmann/ordered_map.hpp
index b7a39888f..d9000791b 100644
--- a/include/nlohmann/ordered_map.hpp
+++ b/include/nlohmann/ordered_map.hpp
@@ -199,6 +199,11 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
 
     iterator erase(iterator first, iterator last)
     {
+        if (first == last)
+        {
+            return first;
+        }
+
         const auto elements_affected = std::distance(first, last);
         const auto offset = std::distance(Container::begin(), first);
 
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 23d763d2c..65670d92c 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -18458,6 +18458,11 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
 
     iterator erase(iterator first, iterator last)
     {
+        if (first == last)
+        {
+            return first;
+        }
+
         const auto elements_affected = std::distance(first, last);
         const auto offset = std::distance(Container::begin(), first);