From b18ddca496d60d0eb79acf513dcbc42c050d42ac Mon Sep 17 00:00:00 2001
From: Gennaro Prota <gennaro.prota@gmail.com>
Date: Wed, 23 Jul 2025 16:56:29 +0200
Subject: [PATCH] Set badbit if an exception is thrown during output

Reason: This is what the standard formatted output functions do.
---
 include/boost/dynamic_bitset/impl/dynamic_bitset.tpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/dynamic_bitset/impl/dynamic_bitset.tpp b/include/boost/dynamic_bitset/impl/dynamic_bitset.tpp
index 7b76bae..a72ca30 100644
--- a/include/boost/dynamic_bitset/impl/dynamic_bitset.tpp
+++ b/include/boost/dynamic_bitset/impl/dynamic_bitset.tpp
@@ -1177,7 +1177,7 @@ operator<<( std::basic_ostream< Ch, Tr > & os, const dynamic_bitset< Block, Allo
             bool rethrow = false;
             BOOST_TRY
             {
-                os.setstate( ios_base::failbit );
+                os.setstate( ios_base::badbit );
             }
             BOOST_CATCH( ... )
             {