Actually, all of the xprintf functions use the core routines of sprintf to
create the formatted output  string before sedning that data to the target
output (console for printf, files for fprintf, etc.)

Douglas Wood
Software Engineer

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Bob Ammerman
Sent: Wednesday, October 25, 2000 5:07 PM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [OT]: String constants in ANSI C (Was : String constants in
ANSI C)


----- Original Message -----
From: Peter L. Peres <plp@ACTCOM.CO.IL>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, October 26, 2000 2:33 PM
Subject: Re: [OT]: String constants in ANSI C (Was : String constants in
ANSI C)


> Concatenating strings and concatenating characters are two different
> things. You have two characters #defined. To concatenate them you must
> first make them strings. Of course there are shortcuts. Since strings are
> arrays of char in C, you can so this:
>
> char buffer[8];
>
> buffer[0]=CHAR1;
> buffer[1]=CHAR2;
> buffer[2]='\0'; /* this assignment is part of that proverbial rope */
>
> disp(buffer);
>
> Or:
>
> sprintf(buffer,"%c%c",CHAR1,CHAR2);
> disp(buffer);
>
> which does exactly the same thing but is more flexible. If you already use
> a printf statement in your code then you can use the second form. If you
> have no other printf then the first form will (may) save program space.

Unfortunately, sprintf uses most of the same code as printf, so it won't
reduce program size to use sprintf.

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)

>
> hope this helps,
>
> Peter
>
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