From 53e2379637ee4fc335d233090f4e02dc1afe7bdb Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Thu, 19 Oct 2023 19:46:53 +0300
Subject: [PATCH] Fix is_trivially_copyable

---
 include/boost/endian/detail/is_trivially_copyable.hpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/boost/endian/detail/is_trivially_copyable.hpp b/include/boost/endian/detail/is_trivially_copyable.hpp
index 1a663b7..b15d4a6 100644
--- a/include/boost/endian/detail/is_trivially_copyable.hpp
+++ b/include/boost/endian/detail/is_trivially_copyable.hpp
@@ -16,14 +16,14 @@ namespace endian
 namespace detail
 {
 
-#if !defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
+#if defined( BOOST_LIBSTDCXX_VERSION ) && BOOST_LIBSTDCXX_VERSION < 50000
 
-using std::is_trivially_copyable;
+template<class T> struct is_trivially_copyable: std::integral_constant<bool,
+    std::has_trivial_copy_constructor<T>::value && std::has_trivial_copy_assign<T>::value && std::has_trivial_destructor<T>::value> {};
 
 #else
 
-template<class T> struct is_trivially_copyable: std::integral_constant<bool,
-    std::has_trivial_copy<T>::value && std::has_trivial_assign<T>::value && std::has_trivial_destructor<T>::value> {};
+using std::is_trivially_copyable;
 
 #endif