28 lines
766 B
C++
28 lines
766 B
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <iterator>
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// <iterator>
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// template <class C> constexpr auto empty(const C& c) -> decltype(c.empty());
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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#include <vector>
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#include <iterator>
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#include "test_macros.h"
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int main(int, char**)
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{
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std::vector<int> c;
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std::empty(c); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
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return 0;
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}
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