From a32717750d778d0b0f69068cc29df598f4c37769 Mon Sep 17 00:00:00 2001
From: Eric Fiselier <eric@efcs.ca>
Date: Wed, 25 Sep 2019 18:43:40 +0000
Subject: [PATCH] add tests that debug mode catches nullptr->string_view
 conversions in comparison operators

llvm-svn: 372907
---
 libcxx/test/libcxx/debug/db_string_view.pass.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libcxx/test/libcxx/debug/db_string_view.pass.cpp b/libcxx/test/libcxx/debug/db_string_view.pass.cpp
index 0753aeac00161..d4ae1cebdb431 100644
--- a/libcxx/test/libcxx/debug/db_string_view.pass.cpp
+++ b/libcxx/test/libcxx/debug/db_string_view.pass.cpp
@@ -26,6 +26,11 @@ void test_null_argument() {
   EXPECT_DEATH(std::string_view(nullptr));
   EXPECT_DEATH(std::string_view(NULL));
   EXPECT_DEATH(std::string_view(static_cast<const char*>(0)));
+  {
+    std::string_view v;
+    EXPECT_DEATH(((void)(v == nullptr)));
+    EXPECT_DEATH(((void)(nullptr == v)));
+  }
 }
 
 int main(int, char**)