| // -*- 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 |
| // UNSUPPORTED: apple-clang-6, apple-clang-7, apple-clang-8 |
| // 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::string_view_literals; |
| |
| std::string_view foo = ""sv; |
| assert(foo.length() == 0); |
| } |
