libstdc++: Add comparison operators to std::filesystem types

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

// { dg-options "-std=gnu++17" }
// { dg-do run { target c++17 } }

// Copyright (C) 2020 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/>.

// C++17 30.10.8.6 path non-member functions [fs.path.nonmember]

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

using std::filesystem::path;

void
test01()
{
  path p("/foo/bar");
  VERIFY( p == p );
  VERIFY( p == "/foo//bar" );

  path q("/foo/baz");
  VERIFY( p < q );
  VERIFY( q > p );

  path r("/foo/bar/.");
  VERIFY( p < r );

  VERIFY( path("a/b/") == path("a/b//") );
}

void
test02()
{
  const path p0 = "/a/a/b/b";
  for (const path& p : __gnu_test::test_paths)
  {
    VERIFY( p.compare(p) == 0 );
    int cmp = p.compare(p0);
    if (cmp == 0)
      VERIFY( p0 == p );
    else if (cmp < 0)
      VERIFY( p0 > p );
    else if (cmp > 0)
      VERIFY( p0 < p );
  }
}

void
test03()
{
  VERIFY( path("/") == path("////") );
  VERIFY( path("/a") > path("/") );
  VERIFY( path("/") < path("/a") );
  VERIFY( path("/ab") > path("/a") );
  VERIFY( path("/ab") > path("/a/b") );
}

int
main()
{
  test01();
  test02();
  test03();
}