DD4hep/cmake/TryFileSystem.cpp

0001 //==========================================================================
0002 //  AIDA Detector description implementation
0003 //--------------------------------------------------------------------------
0004 // Copyright (C) Organisation europeenne pour la Recherche nucleaire (CERN)
0005 // All rights reserved.
0006 //
0007 // For the licensing terms see $DD4hepINSTALL/LICENSE.
0008 // For the list of contributors see $DD4hepINSTALL/doc/CREDITS.
0009 //
0010 // Author     : A. Sailer
0011 //
0012 //==========================================================================
0013
0014 //Header to check if the current compiler and stdlibrary implementation supports filesystem
0015
0016 #include <filesystem>
0017
0018 #include <iostream>
0019 namespace fs = std::filesystem;
0020
0021 int main ()
0022 {
0023     fs::space_info devi = fs::space("/dev/null");
0024     fs::space_info tmpi = fs::space("/tmp");
0025     std::cout << ".        Capacity       Free      Available\n"
0026               << "/dev:   " << devi.capacity << "   "
0027               << devi.free << "   " << devi.available  << '\n'
0028               << "/tmp: " << tmpi.capacity << " "
0029               << tmpi.free << " " << tmpi.available  << '\n';
0030   return 0;
0031 }