Windows下_findnext()异常问题

_findnext()在调试时会出现异常现象，第一个参数”路径句柄”，返回的类型为intptr_t（long long），要改为long long或者intptr_t

//path 目录   filelist 文件列表   mode 文件名中的关键字
void filesearch(string path, vector<string>& filelist, string mode) 
{
  struct _finddata_t filefind;
  if (path[path.size() - 1] == '\\') 
      path.resize(path.size() - 1);
  string curr = path + "\\*.*";
  int done = 0;
  intptr_t handle = 0;
  if ((handle = _findfirst(curr.c_str(), &filefind)) == -1) 
      return;
  while (!(done = _findnext(handle, &filefind))) 
  {
    if (!strcmp(filefind.name, "..")) 
        continue;
    curr = path + "\\" + filefind.name;
    if (_A_SUBDIR == filefind.attrib) 
        filesearch(curr, filelist, mode);
    if (strstr(filefind.name, mode.c_str())) 
        filelist.push_back(curr);

  }
  _findclose(handle);
}