From 38952643c5b64e7d22f3259ae39550de176f1b51 Mon Sep 17 00:00:00 2001
From: David Pfahler <david.pfahler@x-tention.at>
Date: Wed, 21 Apr 2021 12:46:37 +0200
Subject: [PATCH] generate amalgation to fix CI for #2730

---
 single_include/nlohmann/json.hpp | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 4493dd6542..4af5a62f47 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -2229,15 +2229,18 @@ JSON_HEDLEY_DIAGNOSTIC_POP
 #endif
 
 // C++ language standard detection
-#if (defined(__cplusplus) && __cplusplus >= 202002L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L)
-    #define JSON_HAS_CPP_20
-    #define JSON_HAS_CPP_17
-    #define JSON_HAS_CPP_14
-#elif (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464
-    #define JSON_HAS_CPP_17
-    #define JSON_HAS_CPP_14
-#elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1)
-    #define JSON_HAS_CPP_14
+// if the user wants to manually specify the used c++ version this is skipped
+#ifndef JSON_VERSION_IS_PREDEFINED
+    #if (defined(__cplusplus) && __cplusplus >= 202002L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L)
+        #define JSON_HAS_CPP_20
+        #define JSON_HAS_CPP_17
+        #define JSON_HAS_CPP_14
+    #elif (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464
+        #define JSON_HAS_CPP_17
+        #define JSON_HAS_CPP_14
+    #elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1)
+        #define JSON_HAS_CPP_14
+    #endif
 #endif
 
 // disable documentation warnings on clang
@@ -17094,7 +17097,7 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
         detail::parser_callback_t<basic_json>cb = nullptr,
         const bool allow_exceptions = true,
         const bool ignore_comments = false
-                                 )
+    )
     {
         return ::nlohmann::detail::parser<basic_json, InputAdapterType>(std::move(adapter),
                 std::move(cb), allow_exceptions, ignore_comments);
@@ -25748,7 +25751,7 @@ template<>
 inline void swap<nlohmann::json>(nlohmann::json& j1, nlohmann::json& j2) noexcept( // NOLINT(readability-inconsistent-declaration-parameter-name)
     is_nothrow_move_constructible<nlohmann::json>::value&&  // NOLINT(misc-redundant-expression)
     is_nothrow_move_assignable<nlohmann::json>::value
-                              )
+)
 {
     j1.swap(j2);
 }