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c++ builder XE4, 10.2 Tokyo > fileIO > サブフォルダに含まれる全ファイル数取得の実装

Last updated at Posted at 2015-09-09
動作確認
C++ Builder XE4
RAD Studio 10.2 Tokyo Update 2 (追記: 2018/01/09)
  • TEST\DATA1
    • abc.txt
    • cde.txt
  • TEST\DATA2
    • fgh.txt
    • ijk.txt
    • lmn.txt

のようなフォルダ構成の時に、全ファイル数(=5)を取得したい。

以下のように実装した。

#include <IOUtils.hpp> // for TDirectory.XXX
...
static int s_getTotalFileNumbers(String targetDir)
{
	if (DirectoryExists(targetDir) == false) {
        return 0;
	}

	String filePattern = L"*.*";
    TStringDynArray fileList;
    TSearchOption option = TSearchOption::soAllDirectories; // all folders

	fileList = TDirectory::GetFiles(targetDir, filePattern, option);
	return fileList.Length;	
}

以下のように使うと5が取得できる。

int numFiles = s_getTotalFileNumbers(L"C:\\TEST");
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