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ディレクトリ内にある全ファイル/ディレクトリを列挙する

Last updated at Posted at 2013-12-06
#include <iostream>
#include <algorithm>
#include <filesystem> // std::tr2::sys::path etc.

using namespace std;

int main() {
    namespace sys = std::tr2::sys;
    sys::path p("."); // 列挙の起点
    std::for_each(sys::directory_iterator(p), sys::directory_iterator(),
    //  再帰的に走査するならコチラ↓
    //  std::for_each(sys::recursive_directory_iterator(p), sys::recursive_directory_iterator(),
        [](const sys::path& p) {
            if (sys::is_regular_file(p)) { // ファイルなら...
                cout << "file: " << p.filename() << endl;
            } else if (sys::is_directory(p)) { // ディレクトリなら...
                cout << "dir.: " << p.string() << endl;
            }
        });
}

実行例:

file: ConsoleApplication1.vcxproj
file: ConsoleApplication1.vcxproj.filters
file: ConsoleApplication1.vcxproj.vspscc
dir.: ./Debug
dir.: ./Release
file: Source.cpp
file: trial.txt

[追記] ワイド文字版はコチラ

int main() {
    namespace sys = std::tr2::sys;
    sys::wpath p(L"."); // 列挙の起点
    std::for_each(sys::wdirectory_iterator(p), sys::wdirectory_iterator(),
    //  再帰的に走査するならコチラ↓
    //  std::for_each(sys::wrecursive_directory_iterator(p), sys::wrecursive_directory_iterator(),
        [](const sys::wpath& p) {
        if (sys::is_regular_file(p)) { // ファイルなら...
            wcout << L"file: " << p.filename() << endl;
        }
        else if (sys::is_directory(p)) { // ディレクトリなら...
            wcout << L"dir.: " << p.string() << endl;
        }
    });
}
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