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clang-p2996/libcxx/test/std/input.output/filesystems/class.path/path.member/path.construct/move.pass.cpp
Louis Dionne ac8c9f1e39 [libc++] Properly guard std::filesystem with >= C++17 (#72701)
<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.
2023-11-28 18:41:59 -05:00

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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14
// UNSUPPORTED: availability-filesystem-missing
// <filesystem>
// class path
// path(path&&) noexcept
#include <filesystem>
#include <cassert>
#include <string>
#include <type_traits>
#include "test_macros.h"
#include "count_new.h"
namespace fs = std::filesystem;
int main(int, char**) {
using namespace fs;
static_assert(std::is_nothrow_move_constructible<path>::value, "");
assert(globalMemCounter.checkOutstandingNewEq(0));
const std::string s("we really really really really really really really "
"really really long string so that we allocate");
ASSERT_WITH_LIBRARY_INTERNAL_ALLOCATIONS(
globalMemCounter.checkOutstandingNewEq(1));
const fs::path::string_type ps(s.begin(), s.end());
path p(s);
{
DisableAllocationGuard g;
path p2(std::move(p));
assert(p2.native() == ps);
assert(p.native() != ps); // Testing moved from state
}
return 0;
}