From b69713c39480a4aa0b05b24ea07cc542219012ff Mon Sep 17 00:00:00 2001
From: Niels Lohmann <niels.lohmann@gmail.com>
Date: Sun, 2 Jan 2022 09:03:56 +0100
Subject: [PATCH] Fix compilation error with NVCC (#3234)

---
 include/nlohmann/ordered_map.hpp | 8 ++++----
 single_include/nlohmann/json.hpp | 8 ++++----
 test/cuda_example/json_cuda.cu   | 4 ++++
 3 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/include/nlohmann/ordered_map.hpp b/include/nlohmann/ordered_map.hpp
index 51b954524..bfcf89a40 100644
--- a/include/nlohmann/ordered_map.hpp
+++ b/include/nlohmann/ordered_map.hpp
@@ -23,10 +23,10 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
     using key_type = Key;
     using mapped_type = T;
     using Container = std::vector<std::pair<const Key, T>, Allocator>;
-    using typename Container::iterator;
-    using typename Container::const_iterator;
-    using typename Container::size_type;
-    using typename Container::value_type;
+    using iterator = typename Container::iterator;
+    using const_iterator = typename Container::const_iterator;
+    using size_type = typename Container::size_type;
+    using value_type = typename Container::value_type;
 
     // Explicit constructors instead of `using Container::Container`
     // otherwise older compilers choke on it (GCC <= 5.5, xcode <= 9.4)
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 92aa8aef0..88d4d8853 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -17041,10 +17041,10 @@ template <class Key, class T, class IgnoredLess = std::less<Key>,
     using key_type = Key;
     using mapped_type = T;
     using Container = std::vector<std::pair<const Key, T>, Allocator>;
-    using typename Container::iterator;
-    using typename Container::const_iterator;
-    using typename Container::size_type;
-    using typename Container::value_type;
+    using iterator = typename Container::iterator;
+    using const_iterator = typename Container::const_iterator;
+    using size_type = typename Container::size_type;
+    using value_type = typename Container::value_type;
 
     // Explicit constructors instead of `using Container::Container`
     // otherwise older compilers choke on it (GCC <= 5.5, xcode <= 9.4)
diff --git a/test/cuda_example/json_cuda.cu b/test/cuda_example/json_cuda.cu
index 1d4057680..d686cd0f8 100644
--- a/test/cuda_example/json_cuda.cu
+++ b/test/cuda_example/json_cuda.cu
@@ -4,4 +4,8 @@ int main()
 {
     nlohmann::ordered_json json = {"Test"};
     json.dump();
+
+    // regression for #3013 (ordered_json::reset() compile error with nvcc)
+    nlohmann::ordered_json metadata;
+    metadata.erase("key");
 }