NS_IMETHODIMP FileImpl::Tell(PRUint32* outWhere)
NS_IMETHODIMP FileImpl::Tell(PRIntn* outWhere)
NS_IMETHODIMP FileImpl::Tell(PRUint32* outWhere)//----------------------------------------------------------------------------------------{    if (mFileDesc==PR_STDIN || mFileDesc==PR_STDOUT || mFileDesc==PR_STDERR || !mFileDesc)        return NS_FILE_RESULT(PR_BAD_DESCRIPTOR_ERROR);    *outWhere = PR_Seek(mFileDesc, 0, PR_SEEK_CUR);    return NS_OK;} // FileImpl::Tell