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// Copyright (C) 2009 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_DIR_NAV_EXTENSIONs_CPP_
#define DLIB_DIR_NAV_EXTENSIONs_CPP_
#include "dir_nav_extensions.h"
namespace dlib
{
// ----------------------------------------------------------------------------------------
namespace implementation_details
{
void get_all_sub_dirs (
const directory& top_of_tree,
unsigned long max_depth,
std::vector<directory>& result,
std::vector<directory>& temp
)
{
if (max_depth > 0)
{
top_of_tree.get_dirs(temp);
const unsigned long start = result.size();
result.insert(result.end(), temp.begin(), temp.end());
const unsigned long end = start + temp.size();
for (unsigned long i = start; i < end; ++i)
{
get_all_sub_dirs(result[i], max_depth-1, result, temp);
}
}
}
}
// ----------------------------------------------------------------------------------------
bool file_exists (
const std::string& filename
)
{
try
{
dlib::file temp(filename);
return true;
}
catch (file::file_not_found&)
{
return false;
}
}
// ----------------------------------------------------------------------------------------
directory get_parent_directory (
const directory& dir
)
{
return dir.get_parent();
}
// ----------------------------------------------------------------------------------------
directory get_parent_directory (
const file& f
)
{
if (f.full_name().size() == 0)
return directory();
std::string::size_type pos = f.full_name().find_last_of("\\/");
if (pos == std::string::npos)
return directory();
return directory(f.full_name().substr(0,pos));
}
// ----------------------------------------------------------------------------------------
std::string select_oldest_file (
const std::string& filename1,
const std::string& filename2
)
{
file f1, f2;
try{f1 = file(filename1);} catch(file::file_not_found&) { return filename1; }
try{f2 = file(filename2);} catch(file::file_not_found&) { return filename2; }
if (f1.last_modified() < f2.last_modified())
return filename1;
else
return filename2;
}
// ----------------------------------------------------------------------------------------
std::string select_newest_file (
const std::string& filename1,
const std::string& filename2
)
{
file f1, f2;
try{f1 = file(filename1);} catch(file::file_not_found&) { return filename2; }
try{f2 = file(filename2);} catch(file::file_not_found&) { return filename1; }
if (f1.last_modified() > f2.last_modified())
return filename1;
else
return filename2;
}
// ----------------------------------------------------------------------------------------
}
#endif // DLIB_DIR_NAV_EXTENSIONs_CPP_
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