From 6d8a78fd8829828499aca3f652e630b18a7c9b22 Mon Sep 17 00:00:00 2001
From: Daniel Ansorregui <d.ansorregui@samsung.com>
Date: Wed, 2 Feb 2022 13:11:27 +0000
Subject: [PATCH] Avoid clash with Arduino defines

* Arduino defines B0/B1 in "binary.h"
     #define B0 0
     #define B1 1
  This clashes with names of the template
  variables in conjuction

* Renaming them to "B" rather than "B1"
  Now it can be used as-is in Arduino projects
---
 include/nlohmann/detail/meta/type_traits.hpp | 8 ++++----
 single_include/nlohmann/json.hpp             | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/nlohmann/detail/meta/type_traits.hpp b/include/nlohmann/detail/meta/type_traits.hpp
index 984ca1931..166509468 100644
--- a/include/nlohmann/detail/meta/type_traits.hpp
+++ b/include/nlohmann/detail/meta/type_traits.hpp
@@ -152,10 +152,10 @@ struct has_to_json < BasicJsonType, T, enable_if_t < !is_basic_json<T>::value >>
 
 // https://en.cppreference.com/w/cpp/types/conjunction
 template<class...> struct conjunction : std::true_type { };
-template<class B1> struct conjunction<B1> : B1 { };
-template<class B1, class... Bn>
-struct conjunction<B1, Bn...>
-: std::conditional<bool(B1::value), conjunction<Bn...>, B1>::type {};
+template<class B> struct conjunction<Bx> : B { };
+template<class B, class... Bn>
+struct conjunction<B, Bn...>
+: std::conditional<bool(B::value), conjunction<Bn...>, B>::type {};
 
 // https://en.cppreference.com/w/cpp/types/negation
 template<class B> struct negation : std::integral_constant < bool, !B::value > { };
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index e40e3b05b..37faf1692 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -3497,10 +3497,10 @@ struct has_to_json < BasicJsonType, T, enable_if_t < !is_basic_json<T>::value >>
 
 // https://en.cppreference.com/w/cpp/types/conjunction
 template<class...> struct conjunction : std::true_type { };
-template<class B1> struct conjunction<B1> : B1 { };
-template<class B1, class... Bn>
-struct conjunction<B1, Bn...>
-: std::conditional<bool(B1::value), conjunction<Bn...>, B1>::type {};
+template<class B> struct conjunction<Bx> : B { };
+template<class B, class... Bn>
+struct conjunction<B, Bn...>
+: std::conditional<bool(B::value), conjunction<Bn...>, B>::type {};
 
 // https://en.cppreference.com/w/cpp/types/negation
 template<class B> struct negation : std::integral_constant < bool, !B::value > { };