Files
clang-p2996/libcxx/test/std/input.output/filesystems/class.path/path.member/path.decompose/empty.verify.cpp
Louis Dionne c352fa7407 [libc++] Expand the contents of LIBCXX_ENABLE_FILESYSTEM
Since LIBCXX_ENABLE_FILESYSTEM now truly represents whether the
platform supports a filesystem (as opposed to whether the <filesystem>
library is provided), we can provide a few additional classes from
the <filesystem> library even when the platform does not have support
for a filesystem. For example, this allows performing path manipulations
using std::filesystem::path even on platforms where there is no actual
filesystem.

rdar://107061236

Differential Revision: https://reviews.llvm.org/D152382
2023-06-27 09:18:40 -04:00

24 lines
698 B
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <filesystem>
// class path
// bool empty() const noexcept;
// UNSUPPORTED: c++03, c++11, c++14, c++17
// UNSUPPORTED: availability-filesystem-missing
#include "filesystem_include.h"
void f() {
fs::path c;
c.empty(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
}