Use AllocatorType<ObjectType::value_type>,

.gitignore

@@ -26,6 +26,8 @@ cmake-build-debug
 
 test/test-*
 test/test_data.hpp
+Temporary
+
 /.vs
 .vscode
 

README.md

@@ -1527,7 +1527,7 @@ This library will not support comments in the future. If you wish to use comment
 
 ### Order of object keys
 
-By default, the library does not preserve the **insertion order of object elements**. This is standards-compliant, as the [JSON standard](https://tools.ietf.org/html/rfc8259.html) defines objects as "an unordered collection of zero or more name/value pairs". If you do want to preserve the insertion order, you can specialize the object type with containers like [`tsl::ordered_map`](https://github.com/Tessil/ordered-map) ([integration](https://github.com/nlohmann/json/issues/546#issuecomment-304447518)) or [`nlohmann::fifo_map`](https://github.com/nlohmann/fifo_map) ([integration](https://github.com/nlohmann/json/issues/485#issuecomment-333652309)).
+By default, the library does not preserve the **insertion order of object elements**. This is standards-compliant, as the [JSON standard](https://tools.ietf.org/html/rfc8259.html) defines objects as "an unordered collection of zero or more name/value pairs". If you do want to preserve the insertion order, you can try the new [`nlohmann::ordered_json`](https://github.com/nlohmann/json/issues/2179) specialization, or use a more sophisticated ordered map like [`tsl::ordered_map`](https://github.com/Tessil/ordered-map) ([integration](https://github.com/nlohmann/json/issues/546#issuecomment-304447518)) or [`nlohmann::fifo_map`](https://github.com/nlohmann/fifo_map) ([integration](https://github.com/nlohmann/json/issues/485#issuecomment-333652309)).
 
 ### Memory Release
 

doc/mkdocs/docs/features/types.md

@@ -89,7 +89,7 @@ From the template arguments, the following types are derived:
 ```cpp
 using object_comparator_t = std::less<>;
 using object_t = ObjectType<StringType, basic_json, object_comparator_t,
-                   AllocatorType<std::pair<const StringType, basic_json>>>;
+          AllocatorType<typename ObjectType<StringType, basic_json>::value_type>>;
 
 using array_t = ArrayType<basic_json, AllocatorType<basic_json>>;
 

include/nlohmann/json.hpp

@@ -496,9 +496,7 @@ class basic_json
     using object_t = ObjectType<StringType,
           basic_json,
           object_comparator_t,
-          // TODO: AllocatorType<ObjectType::value_type>
-          AllocatorType<std::pair<const StringType,
-          basic_json>>>;
+          AllocatorType<typename ObjectType<StringType, basic_json>::value_type>>;
 
     /*!
     @brief a type for an array

include/nlohmann/ordered_map.hpp

@@ -11,8 +11,8 @@ namespace nlohmann
 /// ordered_map: a minimal map-like container that preserves insertion order
 /// for use within nlohmann::basic_json<ordered_map>
 template <class Key, class T, class IgnoredLess = std::less<Key>,
-          class IgnoredAllocator = std::allocator<std::pair<Key, T>>,
-          class Container = std::vector<std::pair<Key, T>>>
+          class Allocator = std::allocator<std::pair<Key, T>>,
+          class Container = std::vector<std::pair<Key, T>, Allocator>>
 struct ordered_map : Container
 {
     using key_type = Key;

single_include/nlohmann/json.hpp

@@ -15880,8 +15880,8 @@ namespace nlohmann
 /// ordered_map: a minimal map-like container that preserves insertion order
 /// for use within nlohmann::basic_json<ordered_map>
 template <class Key, class T, class IgnoredLess = std::less<Key>,
-          class IgnoredAllocator = std::allocator<std::pair<Key, T>>,
-          class Container = std::vector<std::pair<Key, T>>>
+          class Allocator = std::allocator<std::pair<Key, T>>,
+          class Container = std::vector<std::pair<Key, T>, Allocator>>
 struct ordered_map : Container
 {
     using key_type = Key;
@@ -16348,9 +16348,7 @@ class basic_json
     using object_t = ObjectType<StringType,
           basic_json,
           object_comparator_t,
-          // TODO: AllocatorType<ObjectType::value_type>
-          AllocatorType<std::pair<const StringType,
-          basic_json>>>;
+          AllocatorType<typename ObjectType<StringType, basic_json>::value_type>>;
 
     /*!
     @brief a type for an array