From 972c15f26e0e5a5042d0d45c436c941bd0d77028 Mon Sep 17 00:00:00 2001
From: Krylov Yaroslav <y.krylov@octaviangaming.com>
Date: Mon, 7 Dec 2020 20:15:41 +0300
Subject: [PATCH] ordered_map::insert(InputIt first, InputIt last) is added

---
 include/nlohmann/ordered_map.hpp | 13 +++++++++++++
 single_include/nlohmann/json.hpp | 13 +++++++++++++
 test/src/unit-ordered_json.cpp   |  4 ++--
 3 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/include/nlohmann/ordered_map.hpp b/include/nlohmann/ordered_map.hpp
index 7dd644543..330677c4d 100644
--- a/include/nlohmann/ordered_map.hpp
+++ b/include/nlohmann/ordered_map.hpp
@@ -168,6 +168,19 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
         Container::push_back(value);
         return {--this->end(), true};
     }
+
+    template<typename InputIt>
+    using require_input_iter = typename std::enable_if<std::is_convertible<typename std::iterator_traits<InputIt>::iterator_category,
+            std::input_iterator_tag>::value>::type;
+
+    template<typename InputIt, typename = require_input_iter<InputIt>>
+    void insert(InputIt first, InputIt last)
+    {
+        for (auto it = first; it != last; ++it)
+        {
+            insert(*it);
+        }
+    }
 };
 
 }  // namespace nlohmann
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index e821c79a3..4caae0560 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -16634,6 +16634,19 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
         Container::push_back(value);
         return {--this->end(), true};
     }
+
+    template<typename InputIt>
+    using require_input_iter = typename std::enable_if<std::is_convertible<typename std::iterator_traits<InputIt>::iterator_category,
+            std::input_iterator_tag>::value>::type;
+
+    template<typename InputIt, typename = require_input_iter<InputIt>>
+    void insert(InputIt first, InputIt last)
+    {
+        for (auto it = first; it != last; ++it)
+        {
+            insert(*it);
+        }
+    }
 };
 
 }  // namespace nlohmann
diff --git a/test/src/unit-ordered_json.cpp b/test/src/unit-ordered_json.cpp
index 92a5b9882..9bd1187e4 100644
--- a/test/src/unit-ordered_json.cpp
+++ b/test/src/unit-ordered_json.cpp
@@ -76,7 +76,7 @@ TEST_CASE("ordered_json")
     CHECK(multi_ordered.dump() == "{\"z\":1,\"m\":2,\"y\":4}");
     CHECK(multi_ordered.erase("m") == 1);
     CHECK(multi_ordered.dump() == "{\"z\":1,\"y\":4}");
-    
+
     // Ranged insert test.
     // It seems that values shouldn't be overwritten. Only new values are added
     json j1 {{"c", 1}, {"b", 2}, {"a", 3}};
@@ -84,7 +84,7 @@ TEST_CASE("ordered_json")
     j1.insert( j2.cbegin(), j2.cend() );
     CHECK(j1.size() == 4);
     CHECK(j1.dump() == "{\"a\":3,\"b\":2,\"c\":1,\"d\":42}");
-    
+
     ordered_json oj1 {{"c", 1}, {"b", 2}, {"a", 3}};
     const ordered_json oj2 {{"c", 77}, {"d", 42}, {"a", 4}};
     oj1.insert( oj2.cbegin(), oj2.cend() );