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