ceph/src/boost/libs/filesystem/example/path_info.cpp

   1 //  path_info.cpp  ---------------------------------------------------------------------//
   2
   3 //  Copyright Beman Dawes 2009
   4
   5 //  Distributed under the Boost Software License, Version 1.0.
   6 //  See http://www.boost.org/LICENSE_1_0.txt
   7
   8 //  Library home page: http://www.boost.org/libs/filesystem
   9
  10 #include <iostream>
  11 #include <boost/filesystem.hpp>
  12 using namespace std;
  13 using namespace boost::filesystem;
  14
  15 const char * say_what(bool b) { return b ? "true" : "false"; }
  16
  17 int main(int argc, char* argv[])
  18 {
  19   if (argc < 2)
  20   {
  21     cout << "Usage: path_info path-element [path-element...]\n"
  22             "Composes a path via operator/= from one or more path-element arguments\n"
  23             "Example: path_info foo/bar baz\n"
  24 #            ifdef BOOST_POSIX_API
  25             "         would report info about the composed path foo/bar/baz\n";
  26 #            else  // BOOST_WINDOWS_API
  27             "         would report info about the composed path foo/bar\\baz\n";
  28 #            endif
  29     return 1;
  30   }
  31
  32   path p;
  33   for (; argc > 1; --argc, ++argv)
  34     p /= argv[1];  // compose path p from the command line arguments
  35
  36   cout  <<  "\ncomposed path:\n";
  37   cout  <<  "  operator<<()---------: " << p << "\n";
  38   cout  <<  "  make_preferred()-----: " << p.make_preferred() << "\n";
  39
  40   cout << "\nelements:\n";
  41   for (auto element : p)
  42     cout << "  " << element << '\n';
  43
  44   cout  <<  "\nobservers, native format:" << endl;
  45 # ifdef BOOST_POSIX_API
  46   cout  <<  "  native()-------------: " << p.native() << endl;
  47   cout  <<  "  c_str()--------------: " << p.c_str() << endl;
  48 # else  // BOOST_WINDOWS_API
  49   wcout << L"  native()-------------: " << p.native() << endl;
  50   wcout << L"  c_str()--------------: " << p.c_str() << endl;
  51 # endif
  52   cout  <<  "  string()-------------: " << p.string() << endl;
  53   wcout << L"  wstring()------------: " << p.wstring() << endl;
  54
  55   cout  <<  "\nobservers, generic format:\n";
  56   cout  <<  "  generic_string()-----: " << p.generic_string() << endl;
  57   wcout << L"  generic_wstring()----: " << p.generic_wstring() << endl;
  58
  59   cout  <<  "\ndecomposition:\n";
  60   cout  <<  "  root_name()----------: " << p.root_name() << '\n';
  61   cout  <<  "  root_directory()-----: " << p.root_directory() << '\n';
  62   cout  <<  "  root_path()----------: " << p.root_path() << '\n';
  63   cout  <<  "  relative_path()------: " << p.relative_path() << '\n';
  64   cout  <<  "  parent_path()--------: " << p.parent_path() << '\n';
  65   cout  <<  "  filename()-----------: " << p.filename() << '\n';
  66   cout  <<  "  stem()---------------: " << p.stem() << '\n';
  67   cout  <<  "  extension()----------: " << p.extension() << '\n';
  68
  69   cout  <<  "\nquery:\n";
  70   cout  <<  "  empty()--------------: " << say_what(p.empty()) << '\n';
  71   cout  <<  "  is_absolute()--------: " << say_what(p.is_absolute()) << '\n';
  72   cout  <<  "  has_root_name()------: " << say_what(p.has_root_name()) << '\n';
  73   cout  <<  "  has_root_directory()-: " << say_what(p.has_root_directory()) << '\n';
  74   cout  <<  "  has_root_path()------: " << say_what(p.has_root_path()) << '\n';
  75   cout  <<  "  has_relative_path()--: " << say_what(p.has_relative_path()) << '\n';
  76   cout  <<  "  has_parent_path()----: " << say_what(p.has_parent_path()) << '\n';
  77   cout  <<  "  has_filename()-------: " << say_what(p.has_filename()) << '\n';
  78   cout  <<  "  has_stem()-----------: " << say_what(p.has_stem()) << '\n';
  79   cout  <<  "  has_extension()------: " << say_what(p.has_extension()) << '\n';
  80
  81   return 0;
  82 }