libstdc++-v3/testsuite/27_io/filesystem/path/compare/strings.cc

   1 // { dg-options "-std=gnu++17" }
   2 // { dg-do run { target c++17 } }
   3
   4 // Copyright (C) 2014-2020 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // 8.4.8 path compare [path.compare]
  22
  23 #include <filesystem>
  24 #include <testsuite_hooks.h>
  25 #include <testsuite_fs.h>
  26
  27 using std::filesystem::path;
  28
  29 int sign(int i) { return i > 0 ? 1 : i < 0 ? -1 : 0; }
  30
  31 void
  32 test01()
  33 {
  34   const std::string s0 = "/a/a/b/b";
  35   const path p0 = s0;
  36   for (const std::string& s : __gnu_test::test_paths)
  37   {
  38     path p(s);
  39     VERIFY( p.compare(s) == 0 );
  40     VERIFY( p.compare(s.c_str()) == 0 );
  41     VERIFY( sign(p.compare(p0)) == sign(p.compare(s0)) );
  42     VERIFY( sign(p.compare(p0)) == sign(p.compare(s0.c_str())) );
  43   }
  44 }
  45
  46 void
  47 test02()
  48 {
  49   VERIFY( path("/").compare("////") == 0 );
  50   VERIFY( path("/a").compare("/") > 0 );
  51   VERIFY( path("/").compare("/a") < 0 );
  52   VERIFY( path("/ab").compare("/a") > 0 );
  53   VERIFY( path("/ab").compare("/a/b") > 0 );
  54 }
  55
  56 int
  57 main()
  58 {
  59   test01();
  60   test02();
  61 }