From d6b017c2637cc23e8dc0e22974edf3c28c9ce569 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mateusz=20=C5=81oskot?= <mateusz@loskot.net>
Date: Mon, 22 Oct 2018 19:35:48 +0200
Subject: [PATCH] Add minimal test for UBSan failures

Reproduced with clang 5.0 and 6.0 on Linux using Boost super-project at
master as well as Function at develop:

cd libs/function/test/ubsan_undefined_bug
b2 toolset=clang variant=ubsan_undefined
---
 test/ubsan_undefined_bug/Jamfile  | 18 ++++++++++++++++++
 test/ubsan_undefined_bug/test.cpp | 11 +++++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 test/ubsan_undefined_bug/Jamfile
 create mode 100644 test/ubsan_undefined_bug/test.cpp

diff --git a/test/ubsan_undefined_bug/Jamfile b/test/ubsan_undefined_bug/Jamfile
new file mode 100644
index 0000000..0fdf2c9
--- /dev/null
+++ b/test/ubsan_undefined_bug/Jamfile
@@ -0,0 +1,18 @@
+import testing ;
+
+variant ubsan_undefined
+    : release
+    :
+    <cxxflags>"-std=c++11 -Wno-unused -fstrict-aliasing -fno-omit-frame-pointer -fsanitize=undefined -fno-sanitize-recover=undefined"
+    <linkflags>"-fsanitize=undefined"
+    <debug-symbols>on
+    <define>BOOST_USE_ASAN=1
+    ;
+
+project
+    : requirements
+    <include>$(BOOST_ROOT)
+    <library>/boost/test//boost_unit_test_framework
+    ;
+
+run test.cpp ;
\ No newline at end of file
diff --git a/test/ubsan_undefined_bug/test.cpp b/test/ubsan_undefined_bug/test.cpp
new file mode 100644
index 0000000..befc7b4
--- /dev/null
+++ b/test/ubsan_undefined_bug/test.cpp
@@ -0,0 +1,11 @@
+#define BOOST_TEST_MAIN
+#include <boost/test/unit_test.hpp>
+
+BOOST_AUTO_TEST_SUITE( ubsan_tests )
+
+BOOST_AUTO_TEST_CASE( test1 )
+{
+    BOOST_CHECK(true);
+}
+
+BOOST_AUTO_TEST_SUITE_END()