ac8c9f1e39
<filesystem> is a C++17 addition. In C++11 and C++14 modes, we actually have all the code for <filesystem> but it is hidden behind a non-inline namespace __fs so it is not accessible. Instead of doing this unusual dance, just guard the code for filesystem behind a classic C++17 check like we normally do.
25 lines
720 B
C++
25 lines
720 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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// <filesystem>
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// class path
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// bool empty() const noexcept;
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// UNSUPPORTED: availability-filesystem-missing
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#include <filesystem>
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namespace fs = std::filesystem;
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void f() {
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fs::path c;
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c.empty(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
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}
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