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libcxx/test/std/input.output/filesystems/class.path/path.member/path.assign/move.pass.cpp

43 lines
1.1 KiB
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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <filesystem>
// class path
// path& operator=(path&&) noexcept
#include "filesystem_include.hpp"
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#include "count_new.hpp"
int main() {
using namespace fs;
static_assert(std::is_nothrow_move_assignable<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(globalMemCounter.checkOutstandingNewEq(1));
path p(s);
{
DisableAllocationGuard g;
path p2;
path& pref = (p2 = std::move(p));
assert(p2.native() == s);
assert(p.native() != s); // Testing moved from state
assert(&pref == &p2);
}
}