From b6c31904685e08fb7d9524f8cae961c0bd04cf31 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Mon, 30 May 2022 04:03:18 +0300
Subject: [PATCH] Add tn_holder specializations for __int128 (avoids macOS link
 errors for missing typeinfo for same)

---
 include/boost/core/type_name.hpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/boost/core/type_name.hpp b/include/boost/core/type_name.hpp
index 4afef1d..53c0224 100644
--- a/include/boost/core/type_name.hpp
+++ b/include/boost/core/type_name.hpp
@@ -305,6 +305,26 @@ template<> struct tn_holder<boost::ulong_long_type>
     }
 };
 
+#if defined(BOOST_HAS_INT128)
+
+template<> struct tn_holder<boost::int128_type>
+{
+    static std::string type_name( std::string const& suffix )
+    {
+        return "__int128" + suffix;
+    }
+};
+
+template<> struct tn_holder<boost::uint128_type>
+{
+    static std::string type_name( std::string const& suffix )
+    {
+        return "unsigned __int128" + suffix;
+    }
+};
+
+#endif
+
 template<> struct tn_holder<wchar_t>
 {
     static std::string type_name( std::string const& suffix )