Re: TCP/IP Sockets with GNAT.Sockets

[Poul-Erik Andreasen <poulerik@pea.dk>]

Simon Wright wrote:
> Poul-Erik Andreasen <poulerik@pea.dk> writes:
> 
> 
>>BTW my C-couterpart program dosn't seems to have anything against
>>String'Output( Channel, "Hello" & character'first) ?
> 
> 
> Well, that _ought_ to send
> 
> (a) 4 bytes == 1, which is the lower index of the string
> (b) 4 bytes == 6, which is the upper index of the string
> (c) the null-terminated string.


> So it depends what your C-counterpart did with those strange
> characers.

It probely  just trow them away, i think the reson why is not a problem 
is that besides being zero terminated the the messages that i sent are
requered to start with '$', Anyway i will, ofcourse change to
string'write

> 
> Why do you say Character'First & not ASCII.NUL?

Not for any partikulari reason.

When i started developing job i tried with ASCII.NUL
things didn't work out(surely for som other reason);
they did when i first was using character'first.
(also surely for som other reason);

Are there any reason why ASCII.NUL should be better;

ASCII.NUL are defined as Character'First;

> If you don't want to include the bounds, use 'Write.

I will

> There's nothing wrong with streams, but you do have to know exactly
> what the language requires the compiler to do!

Therefor this is realy a nice thread :-)