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// -*- 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
//
// This will fail before r290744
// http://b/36400049
// XFAIL: *
#include <string_view>
#include <cassert>
int main()
{
using namespace std;
string_view foo = ""sv;
assert(foo.length() == 0);
}
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