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

   1 //  file_size program  -------------------------------------------------------//
   2
   3 //  Copyright Beman Dawes, 2004
   4
   5 //  Use, modification, and distribution is subject to the Boost Software
   6 //  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   7 //  http://www.boost.org/LICENSE_1_0.txt)
   8
   9 //  See http://www.boost.org/libs/filesystem for documentation.
  10
  11 #include <boost/filesystem/operations.hpp>
  12 #include <iostream>
  13
  14 namespace fs = boost::filesystem;
  15
  16 int main( int argc, char* argv[] )
  17 {
  18
  19   if ( argc != 2 )
  20   {
  21     std::cout << "Usage: file_size path\n";
  22     return 1;
  23   }
  24
  25   std::cout << "sizeof(intmax_t) is " << sizeof(boost::intmax_t) << '\n';
  26
  27   fs::path p( argv[1] );
  28
  29   if ( !fs::exists( p ) )
  30   {
  31     std::cout << "not found: " << argv[1] << std::endl;
  32     return 1;
  33   }
  34
  35   if ( !fs::is_regular( p ) )
  36   {
  37     std::cout << "not a regular file: " << argv[1] << std::endl;
  38     return 1;
  39   }
  40
  41   std::cout << "size of " << argv[1] << " is " << fs::file_size( p )
  42     << std::endl;
  43   return 0;
  44 }