Re: Help: Get/Get_line

[matthew_heaney@acm.org (Matthew Heaney)]

In article <355E79FE.448@info.polymtl.ca>, jslavich@info.polymtl.ca wrote:

(start of quote)
My problem is when I need
to invert the "get" and "get_line" like so:
...
begin
        get(number);
        ...
        get_line(name, number2); ...
end xx; 

        At the first prompt I enter an integer and as soon as I hit the return
key, it skips over the "get_line" command and doesn't prompt me to enter
a string.  I get no error from the "get_line" command.
(end of quote)

Here's your problem:

When you press Return to enter the value of Number at the prompt, Get reads
in and parses only the number itself, not the carriage return.  What
happens is that when you say Get_Line, the carriage return is still there,
and it reads _that_ one, instead of the one you want.

What you need to do is just add a statement that consumes the rest in the
line, including the carriage return, and then do the Get_Line.  So just add
a Skip_Line immediately following Get.

The code belows compiles and works as expected, using GNAT 3.10p under UNIX.

Hope that helps,
Matt

--STX
with Ada.Integer_Text_IO;
with Ada.Text_IO;

procedure Test_IO is

   Name : String (1 .. 50);
   Last : Natural;

   I : Integer;

begin

   Ada.Integer_Text_IO.Get (I);

--!!! Here's the new line:
   Ada.Text_IO.Skip_Line;

   Ada.Text_IO.Get_Line (Name, Last);

   Ada.Text_IO.Put_Line ("I is" & I'Img);
   Ada.Text_IO.Put_Line ("Name is '" & Name (1 .. Last) & "'");

end;