// -*- 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 multimap // 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::multimap<int, int> c; c.empty(); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}} }