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Win32 File Name Iteration Boost Way

, 3 Nov 2005
A Port of ::FindFirstFile to Boost.Range and Boost.Foreach
#pragma once

#include <functional>

namespace find_file {

template< DWORD attr >
struct find_file_matches_mask :
	std::unary_function<WIN32_FIND_DATA, bool>
{
	bool operator()(WIN32_FIND_DATA const& data) const
	{
		return (data.dwFileAttributes & attr) != 0;
	}
};

struct find_file_is_read_only :
	find_file_matches_mask<FILE_ATTRIBUTE_READONLY>
{ };

struct find_file_is_directory :
	find_file_matches_mask<FILE_ATTRIBUTE_DIRECTORY>
{ };

struct find_file_is_compressed :
	find_file_matches_mask<FILE_ATTRIBUTE_COMPRESSED>
{ };

struct find_file_is_system :
	find_file_matches_mask<FILE_ATTRIBUTE_SYSTEM>
{ };

struct find_file_is_hidden :
	find_file_matches_mask<FILE_ATTRIBUTE_HIDDEN>
{ };

struct find_file_is_temporary :
	find_file_matches_mask<FILE_ATTRIBUTE_TEMPORARY>
{ };

struct find_file_is_normal :
	find_file_matches_mask<FILE_ATTRIBUTE_NORMAL>
{ };

struct find_file_is_archived :
	find_file_matches_mask<FILE_ATTRIBUTE_ARCHIVE>
{ };

struct find_file_is_dots :
	std::unary_function<WIN32_FIND_DATA, bool>
{
	bool operator()(WIN32_FIND_DATA const& data) const
	{
		return
			find_file_is_directory()(data) &&
			data.cFileName[0] == _T('.') &&
			(
				data.cFileName[1] == _T('\0') ||
				(
					data.cFileName[1] == _T('.') && 
					data.cFileName[2] == _T('\0')
				)
			)
		;
	}
};

} // namespace find_file

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About the Author

mb2sync

Japan Japan
I am worried about my poor English...

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