977ed18d
 Hu Chunming
提交三方库
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// filesystem tut4.cpp ---------------------------------------------------------------//
// Copyright Beman Dawes 2009
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// Library home page: http://www.boost.org/libs/filesystem
#include <iostream>
#include <vector>
#include <algorithm>
#include <boost/filesystem.hpp>
using std::cout;
using namespace boost::filesystem;
int main(int argc, char* argv[])
{
if (argc < 2)
{
cout << "Usage: tut4 path\n";
return 1;
}
path p(argv[1]);
try
{
if (exists(p))
{
if (is_regular_file(p))
{
cout << p << " size is " << file_size(p) << '\n';
}
else if (is_directory(p))
{
cout << p << " is a directory containing:\n";
std::vector< path > v;
for (auto&& x : directory_iterator(p))
v.push_back(x.path());
std::sort(v.begin(), v.end());
for (auto&& x : v)
cout << " " << x.filename() << '\n';
}
else
cout << p << " exists, but is not a regular file or directory\n";
}
else
cout << p << " does not exist\n";
}
catch (filesystem_error& ex)
{
cout << ex.what() << '\n';
}
return 0;
}
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