#include <Windows.h>

 #include <cstdio>

 #include <cstring>

 #include <string>

 #include <stack>

 typedef void (__stdcall *P_WALK_DIR_CALLBACK)(const std::string &In_strFilePath);

 int WalkDir(const char *In_pcRoot, P_WALK_DIR_CALLBACK In_pfunCallBack)

 {

     int         iRetVal = ;

     std::string strRoot;

     std::stack<std::string> stkDirs;

     if (In_pcRoot == NULL || In_pfunCallBack == NULL)

     {

         iRetVal = -;

         goto fun_ret;

     }

     strRoot = In_pcRoot;

     if (strRoot.empty())

     {

         iRetVal = -;

         goto fun_ret;

     }

     if (strRoot.back() != '\\' && strRoot.back() != '/')

         strRoot += '\\';

     stkDirs.push(strRoot);

     while (!stkDirs.empty())

     {

         std::string         strDirForWalk;

         WIN32_FIND_DATAA    Win32FindData   = {};

         HANDLE              hFindHandle     = NULL;

         strDirForWalk = stkDirs.top();

         stkDirs.pop();

         hFindHandle = FindFirstFileA((strDirForWalk + "*").c_str(), &Win32FindData);

         if (hFindHandle == INVALID_HANDLE_VALUE)

             continue;

         if (!(strlen(Win32FindData.cFileName) ==  && strncmp(Win32FindData.cFileName, ".", ) == )

             && !(strlen(Win32FindData.cFileName) ==  && strncmp(Win32FindData.cFileName, "..", ) == ))

         {

             if (Win32FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)

                 stkDirs.push(strDirForWalk + Win32FindData.cFileName + "\\");

             else

                 In_pfunCallBack(strDirForWalk + Win32FindData.cFileName);

         }

         while (FindNextFileA(hFindHandle, &Win32FindData))

         {

             if (!(strlen(Win32FindData.cFileName) ==  && strncmp(Win32FindData.cFileName, ".", ) == )

                 && !(strlen(Win32FindData.cFileName) ==  && strncmp(Win32FindData.cFileName, "..", ) == ))

             {

                 if (Win32FindData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)

                     stkDirs.push(strDirForWalk + Win32FindData.cFileName + "\\");

                 else

                     In_pfunCallBack(strDirForWalk + Win32FindData.cFileName);

             }

         }

         if (hFindHandle != INVALID_HANDLE_VALUE)

             FindClose(hFindHandle);

     }

 fun_ret:

     return iRetVal;

 }

 void inline __stdcall WalkDirCallBack(const std::string &In_strFilePath)

 {

     printf("%s\n", In_strFilePath.c_str());

     return;

 }

 void main(int argc, char **argv)

 {

     WalkDir(argv[], WalkDirCallBack);

     return;

 }