PR libstdc++/83306 make filesystem_error no-throw copyable

[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 27_io / filesystem / path / generation / relative.cc

// Copyright (C) 2017-2018 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// { dg-options "-std=gnu++17 -lstdc++fs" }
// { dg-do run { target c++17 } }
// { dg-require-filesystem-ts "" }

#include <filesystem>
#include <testsuite_hooks.h>
#include <testsuite_fs.h>

using std::filesystem::path;
using __gnu_test::compare_paths;

void
test01()
{
  // C++17 [fs.path.gen] p5
  compare_paths( path("/a/d").lexically_relative("/a/b/c"), "../../d" );
  compare_paths( path("/a/b/c").lexically_relative("/a/d"), "../b/c" );
  compare_paths( path("a/b/c").lexically_relative("a"), "b/c" );
  compare_paths( path("a/b/c").lexically_relative("a/b/c/x/y"), "../.." );
  compare_paths( path("a/b/c").lexically_relative("a/b/c"), "." );
  compare_paths( path("a/b").lexically_relative("c/d"), "../../a/b" );
}

void
test02()
{
  path p = "a/b/c";
  compare_paths( p.lexically_relative(p), "." );
  compare_paths( p.lexically_relative("a/../a/b/../b/c/../c/."), "../../b/c" );
  compare_paths( p.lexically_relative("../../../"), "" );
}

int
main()
{
  test01();
  test02();
}