Re: Ada2005 (was Re: reading a text file into a string

["Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>]

On Mon, 19 Jul 2004 11:51:52 +0000 (UTC), Peter Hermann wrote:

> Robert I. Eachus <rieachus@comcast.net> wrote:
>> For this reason, I find myself contructing or using a Get_Line FUNCTION 
>> inside a loop and a declare block:
>> 
>> while not End_of_Line(Somefile) loop
>>    declare
>>       Buffer: String := Get_Line(Somefile);
>>    begin
>>       -- process buffer
>>    exception
>>       ...
>>    end;
>> end loop;
> 
> There is no compelling reason why such a FUNCTION get_line
> should not be in package specification Ada.text_io of Ada2005.

It would be nice.

> Or did I miss something?

In Ada community there is a strong resistance against functions having
side-effects, even when side-effect is hidden in an *in* File_Type
parameter. A counter example would be:

   What_Is_This : String := Get_Line (File) & Get_Line (File);

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de