Implement P0403R1 - 'Literal suffixes for basic_string_view'. Requires clang 4.0 (specifically, r290744)

llvm-svn: 291457

1 files changed, 24 insertions, 0 deletions

diff --git a/libcxx/test/std/strings/string.view/string_view.literals/literal1.pass.cpp b/libcxx/test/std/strings/string.view/string_view.literals/literal1.pass.cpp
new file mode 100644
index 00000000000..2481be0a60a
--- /dev/null
+++ b/libcxx/test/std/strings/string.view/string_view.literals/literal1.pass.cpp
@@ -0,0 +1,24 @@
+// -*- 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.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11
+// UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8, clang-3.9
+// Note: libc++ supports string_view before C++17, but literals were introduced in C++14
+
+#include <string_view>
+#include <cassert>
+
+int main()
+{
+    using namespace std::literals;
+
+    std::string_view foo  =   ""sv;
+    assert(foo.length() == 0);
+}