From 389f886bc382b638b619c4781cd836493bd2efa0 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Mon, 30 May 2022 19:36:29 +0300
Subject: [PATCH] Add test for issue #42

---
 test/Jamfile.v2   |  2 ++
 test/issue_42.cpp | 21 +++++++++++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 test/issue_42.cpp

diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index ae44914..423f61c 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -82,3 +82,5 @@ run test_return_function.cpp return_function/<cxxstd>14 : : : <link>shared $(che
 run test_return_function.cpp return_function/<cxxstd>14 : : : <link>static $(check14) : return_function_static_14 ;
 
 run quick.cpp ;
+
+compile issue_42.cpp ;
diff --git a/test/issue_42.cpp b/test/issue_42.cpp
new file mode 100644
index 0000000..a698571
--- /dev/null
+++ b/test/issue_42.cpp
@@ -0,0 +1,21 @@
+// Copyright 2022 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+//
+// https://github.com/boostorg/function/issues/42
+
+#include <boost/function.hpp>
+
+struct F
+{
+    int operator()( int x ) const { return -x; }
+};
+
+struct X
+{
+    boost::function<int(int)> f_;
+    explicit X( boost::function<int(int)> f ): f_( f ) {}
+};
+
+F f2;
+X x( f2 ); // -Wuninitialized under GCC 12