From dae54122684bbe256117b82992e95e7840720b75 Mon Sep 17 00:00:00 2001
From: Florian Albrechtskirchinger <falbrechtskirchinger@gmail.com>
Date: Sun, 7 Aug 2022 13:55:09 +0200
Subject: [PATCH] Properly constrain non-string json_pointer overloads (#3681)

Thanks, @alex-700, for reminding me.
---
 include/nlohmann/json.hpp        | 8 ++++----
 single_include/nlohmann/json.hpp | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/nlohmann/json.hpp b/include/nlohmann/json.hpp
index 5fda88f26..5fdb8c900 100644
--- a/include/nlohmann/json.hpp
+++ b/include/nlohmann/json.hpp
@@ -2736,9 +2736,9 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
         return ptr.contains(this);
     }
 
-    template<typename BasicJsonType>
+    template<typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
     JSON_HEDLEY_DEPRECATED_FOR(3.11.0, basic_json::json_pointer or nlohmann::json_pointer<basic_json::string_t>) // NOLINT(readability/alt_tokens)
-    bool contains(const typename ::nlohmann::json_pointer<BasicJsonType> ptr) const
+    bool contains(const typename ::nlohmann::json_pointer<BasicJsonType>& ptr) const
     {
         return ptr.contains(this);
     }
@@ -4617,7 +4617,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
         return ptr.get_checked(this);
     }
 
-    template<typename BasicJsonType>
+    template<typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
     JSON_HEDLEY_DEPRECATED_FOR(3.11.0, basic_json::json_pointer or nlohmann::json_pointer<basic_json::string_t>) // NOLINT(readability/alt_tokens)
     reference at(const ::nlohmann::json_pointer<BasicJsonType>& ptr)
     {
@@ -4631,7 +4631,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
         return ptr.get_checked(this);
     }
 
-    template<typename BasicJsonType>
+    template<typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
     JSON_HEDLEY_DEPRECATED_FOR(3.11.0, basic_json::json_pointer or nlohmann::json_pointer<basic_json::string_t>) // NOLINT(readability/alt_tokens)
     const_reference at(const ::nlohmann::json_pointer<BasicJsonType>& ptr) const
     {
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 7d8d91e2e..989c799ee 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -21868,9 +21868,9 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
         return ptr.contains(this);
     }
 
-    template<typename BasicJsonType>
+    template<typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
     JSON_HEDLEY_DEPRECATED_FOR(3.11.0, basic_json::json_pointer or nlohmann::json_pointer<basic_json::string_t>) // NOLINT(readability/alt_tokens)
-    bool contains(const typename ::nlohmann::json_pointer<BasicJsonType> ptr) const
+    bool contains(const typename ::nlohmann::json_pointer<BasicJsonType>& ptr) const
     {
         return ptr.contains(this);
     }
@@ -23749,7 +23749,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
         return ptr.get_checked(this);
     }
 
-    template<typename BasicJsonType>
+    template<typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
     JSON_HEDLEY_DEPRECATED_FOR(3.11.0, basic_json::json_pointer or nlohmann::json_pointer<basic_json::string_t>) // NOLINT(readability/alt_tokens)
     reference at(const ::nlohmann::json_pointer<BasicJsonType>& ptr)
     {
@@ -23763,7 +23763,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
         return ptr.get_checked(this);
     }
 
-    template<typename BasicJsonType>
+    template<typename BasicJsonType, detail::enable_if_t<detail::is_basic_json<BasicJsonType>::value, int> = 0>
     JSON_HEDLEY_DEPRECATED_FOR(3.11.0, basic_json::json_pointer or nlohmann::json_pointer<basic_json::string_t>) // NOLINT(readability/alt_tokens)
     const_reference at(const ::nlohmann::json_pointer<BasicJsonType>& ptr) const
     {