From 25a7ba4524219e7eeb1254db0d406448f3703d3a Mon Sep 17 00:00:00 2001
From: Marshall Clow <mclow.lists@gmail.com>
Date: Wed, 15 Nov 2017 20:02:27 +0000
Subject: More of P0600 - '[[nodiscard]] in the Library' mark empty() as
 nodiscard in string, string_view, and the free function std::empty(). Removed
 tabs from <string_view>, which is why the diff is so big.

llvm-svn: 318328
---
 .../iterator.container/empty.container.fail.cpp    | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 libcxx/test/std/iterators/iterator.container/empty.container.fail.cpp

(limited to 'libcxx/test/std/iterators/iterator.container/empty.container.fail.cpp')

diff --git a/libcxx/test/std/iterators/iterator.container/empty.container.fail.cpp b/libcxx/test/std/iterators/iterator.container/empty.container.fail.cpp
new file mode 100644
index 00000000000..1773b53e7b1
--- /dev/null
+++ b/libcxx/test/std/iterators/iterator.container/empty.container.fail.cpp
@@ -0,0 +1,28 @@
+// -*- C++ -*-
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <iterator>
+
+// <iterator>
+// template <class C> constexpr auto empty(const C& c) -> decltype(c.empty());
+
+// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
+// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8
+
+#include <vector>
+#include <iterator>
+
+#include "test_macros.h"
+
+int main ()
+{
+    std::vector<int> c;
+    std::empty(c);  // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}}
+}
-- 
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