From 1a8dca4f2c223965ffe965a551971674c40a7d1c Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Mon, 28 Nov 2022 05:15:06 +0200
Subject: [PATCH] Disable is_tuple_like for msvc-12.0 and earlier

---
 include/boost/container_hash/is_tuple_like.hpp | 3 ++-
 test/is_tuple_like_test.cpp                    | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/boost/container_hash/is_tuple_like.hpp b/include/boost/container_hash/is_tuple_like.hpp
index 5368283..8f57364 100644
--- a/include/boost/container_hash/is_tuple_like.hpp
+++ b/include/boost/container_hash/is_tuple_like.hpp
@@ -7,6 +7,7 @@
 
 #include <boost/type_traits/integral_constant.hpp>
 #include <boost/config.hpp>
+#include <boost/config/workaround.hpp>
 #include <utility>
 
 namespace boost
@@ -18,7 +19,7 @@ template<class T, class E = true_type> struct is_tuple_like_: false_type
 {
 };
 
-#if !defined(BOOST_NO_CXX11_HDR_TUPLE)
+#if !defined(BOOST_NO_CXX11_HDR_TUPLE) && !BOOST_WORKAROUND(BOOST_MSVC, <= 1800)
 
 template<class T> struct is_tuple_like_<T, integral_constant<bool, std::tuple_size<T>::value == std::tuple_size<T>::value> >: true_type
 {
diff --git a/test/is_tuple_like_test.cpp b/test/is_tuple_like_test.cpp
index 728dec3..d00dca7 100644
--- a/test/is_tuple_like_test.cpp
+++ b/test/is_tuple_like_test.cpp
@@ -9,6 +9,7 @@
 #include <boost/container_hash/is_tuple_like.hpp>
 #include <boost/core/lightweight_test_trait.hpp>
 #include <boost/config.hpp>
+#include <boost/config/workaround.hpp>
 #include <utility>
 
 struct X
@@ -73,7 +74,7 @@ int main()
     BOOST_TEST_TRAIT_FALSE((is_tuple_like<X>));
     BOOST_TEST_TRAIT_FALSE((is_tuple_like<int[2]>));
 
-#if !defined(BOOST_NO_CXX11_HDR_TUPLE)
+#if !defined(BOOST_NO_CXX11_HDR_TUPLE) && !BOOST_WORKAROUND(BOOST_MSVC, <= 1800)
 
     BOOST_TEST_TRAIT_TRUE((is_tuple_like< std::pair<int, X> >));