How could I copy a non-empty directory with c++ on windows-PC?

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Hello, everybody! For this I have a serious problem, months ago I had written a File Copy non-empty directory to another,including its all children files.but this function is Recursive.anyone has a better way to resolve this function? if only not using recursive!Thank you very much! I will be appreciated,guys!

Posted 7-Sep-15 19:31pm

quguimin

Updated 20-Apr-19 11:40am

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Patrice T 8-Sep-15 2:35am

Since a directory tree is recursive in nature, it will be difficult to do otherwise.

quguimin 8-Sep-15 3:29am

Thank you! I have a question,how do you think the inner implementation of function 'SHFileOperation', maybe it is using the recursive way, isn't it?

Richard MacCutchan 8-Sep-15 4:19am

Yes it uses recursion, which you can disable with the FOF_NORECURSION flag.

Patrice T 8-Sep-15 3:35am

I don't know this function, I am not a win32 specialist.

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Michael Haephrati · Answer 1 · 2019-04-20T11:41:00

Maybe this code will work for you:

bool CopyNonEmptyFolder(const std::wstring& source_folder, const std::wstring& target_folder)
{
	std::wstring new_sf = source_folder + L"\\*";
	WCHAR sf[MAX_PATH + 1];
	WCHAR tf[MAX_PATH + 1];

	wcscpy_s(sf, MAX_PATH, new_sf.c_str());
	wcscpy_s(tf, MAX_PATH, target_folder.c_str());

	sf[lstrlenW(sf) + 1] = 0;
	tf[lstrlenW(tf) + 1] = 0;

	SHFILEOPSTRUCTW s = { 0 };
	s.wFunc = FO_COPY;
	s.pTo = tf;
	s.pFrom = sf;
	s.fFlags = FOF_SILENT | FOF_NOCONFIRMMKDIR | FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_NO_UI;
	int res = SHFileOperationW(&s);

	return res == 0;
}