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libcxx/test/std/containers/associative/map/map.access/empty.fail.cpp

29 lines
753 B
C++

// -*- 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.
//
//===----------------------------------------------------------------------===//
// <map>
// class map
// bool empty() const noexcept;
// 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 <map>
#include "test_macros.h"
int main ()
{
std::map<int, int> c;
c.empty(); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}}
}