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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.
//
//===----------------------------------------------------------------------===//
#include <string>
#include <cassert>
int main()
{
#if _LIBCPP_STD_VER > 11
using std::string;
string foo = ""s; // should fail w/conversion operator not found
#else
#error
#endif
}
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