From c61b1e350845ba9b12201768945379dc2e716e8f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Fri, 31 Dec 2021 00:59:41 +0100
Subject: [PATCH] Fix some -Wsign-conversion warnings

---
 include/boost/mpl/aux_/preprocessed/gcc/template_arity.hpp | 2 +-
 include/boost/mpl/aux_/template_arity.hpp                  | 2 +-
 include/boost/mpl/aux_/yes_no.hpp                          | 3 ++-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/boost/mpl/aux_/preprocessed/gcc/template_arity.hpp b/include/boost/mpl/aux_/preprocessed/gcc/template_arity.hpp
index daec4b8..bb568f6 100644
--- a/include/boost/mpl/aux_/preprocessed/gcc/template_arity.hpp
+++ b/include/boost/mpl/aux_/preprocessed/gcc/template_arity.hpp
@@ -12,7 +12,7 @@
 namespace boost { namespace mpl { namespace aux {
 template< int N > struct arity_tag
 {
-    typedef char (&type)[N + 1];
+    typedef char (&type)[(unsigned)N + 1];
 };
 
 template<
diff --git a/include/boost/mpl/aux_/template_arity.hpp b/include/boost/mpl/aux_/template_arity.hpp
index f011159..f77761b 100644
--- a/include/boost/mpl/aux_/template_arity.hpp
+++ b/include/boost/mpl/aux_/template_arity.hpp
@@ -65,7 +65,7 @@ namespace boost { namespace mpl { namespace aux {
 
 template< BOOST_MPL_AUX_NTTP_DECL(int, N) > struct arity_tag
 {
-    typedef char (&type)[N + 1];
+    typedef char (&type)[(unsigned)N + 1];
 };
 
 #   define AUX778076_MAX_ARITY_OP(unused, state, i_) \
diff --git a/include/boost/mpl/aux_/yes_no.hpp b/include/boost/mpl/aux_/yes_no.hpp
index 21a18a2..2fdda93 100644
--- a/include/boost/mpl/aux_/yes_no.hpp
+++ b/include/boost/mpl/aux_/yes_no.hpp
@@ -18,6 +18,7 @@
 #include <boost/mpl/aux_/config/arrays.hpp>
 #include <boost/mpl/aux_/config/msvc.hpp>
 #include <boost/mpl/aux_/config/workaround.hpp>
+#include <cstddef>
 
 
 namespace boost { namespace mpl { namespace aux {
@@ -36,7 +37,7 @@ template<> struct yes_no_tag<true>
 };
 
 
-template< BOOST_MPL_AUX_NTTP_DECL(long, n) > struct weighted_tag
+template< BOOST_MPL_AUX_NTTP_DECL(std::size_t, n) > struct weighted_tag
 {
 #if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)
     typedef char (&type)[n];