[Dev-C++] appending to a file

[Alan T. <ala...@3n...>]

>             I am trying to append to a file.  However, the compiler gives
me
> the following error:
>
>                                                     'ios_base'  undeclared
> (first use this function)
>
> The code is below.  Any idea what I am doing wrong?          Thanks, Alan
>
> #include <fstream>
>
> int main()
> {
>  fstream append_file;
>
>  append_file.open("test_append.txt", ios_base::app);
>  append_file << "This is a line of text." << endl;
>  append_file.close()
>
>  return 0;
> }
>
>