C programming on as400 ?

[Fredrik Andreasson]

Hello

I was wondering.
When programming in C you write...
#include <stdio.h>

I was wondering what "stdio.h" is in the machine.
Is it an physical file ?
A member of a physical file ?

Thanks in advance... Fredrik

[Ma...@softlanding.com]

Frederik,

<stdio.h> would be a source member named "STDIO" in a source physical file
named "H" in library QCLE.

"myfile.h" would be a source member named "MYFILE" in a source physical
file named "H" in the job's library list.

Some of the "system includes" will come from source physical file "H" in
library QSYSINC.

Hope this helps.

Mark Phippard

[Ugo Gagliardelli]

Fredrik Andreasson wrote:
>
> Hello
>
> I was wondering.
> When programming in C you write...
> #include <stdio.h>
>
> I was wondering what "stdio.h" is in the machine.
> Is it an physical file ?
> A member of a physical file ?

Yes, <stdio.h> is member STDIO of H file, if you specify, for example,
<sys/ioctl.h> means that the compiler will search for IOCTL member in
SYS source file.
--
Dr. Ugo Gagliardelli, Modena, Italy
Spaccamaroni andate a cagare/Spammers not welcome

[Karl Hanson]

Ma...@softlanding.com wrote:
>
> <stdio.h> would be a source member named "STDIO" in a source physical file
> named "H" in library QCLE.
>
> "myfile.h" would be a source member named "MYFILE" in a source physical
> file named "H" in the job's library list.
>
> Some of the "system includes" will come from source physical file "H" in
> library QSYSINC.
>

Also note that (on recent releases) there are IFS symbolic links
defined, such as in:
/QIBM/include
/QIBM/ProdData/ILEC

These may be useful when compiling with stream file input, but I am
unfamiliar with setup of search paths to find include/H files via IFS.

--

Karl Hanson

[Fredrik Andreasson]

Hello,

Thanks for all the answers. I really appreciated it.
I am happy with that but I it would't hurt to explain why I asked you...

You see I am experimenting with C on AS/400.
I have made a program that writes "wow" to the screen.
It works. I would just like it to clear the screen before it writes to it.
And this program runs without problem on DOS for example but not on AS/400.
This is the code I use...

#include <stdio.h>
#include <conio.h>
main()
{
clrscr();
printf("Wow it works...\n");
getchar();
}

It seems like <conio.h> does not exist in as/400 ?
I get this messages when trying to compile...

V01V080783/QCLSRC/CTEST line 2: Unable to find Äinclude file
*LIBL/H(CONIO).
V01V080783/QCLSRC/CTEST line 5: Function clrscr has not been prototyped
prior to use.

Thanks in advance... Fredrik
--> fredrik.a...@xpress.se

"Fredrik Andreasson" <fredrik.1....@volvo.com> wrote in message
news:9afauq$ij9$1...@vg170.it.volvo.se...

[Fred A. Kulack]

Fredrik,
See my response to "Clearing the screen with C ??" post.

[Ugo Gagliardelli]

Fredrik Andreasson wrote:
>
> Hello,
>
> Thanks for all the answers. I really appreciated it.
> I am happy with that but I it would't hurt to explain why I asked you...
>
> You see I am experimenting with C on AS/400.
> I have made a program that writes "wow" to the screen.
> It works. I would just like it to clear the screen before it writes to it.
> And this program runs without problem on DOS for example but not on AS/400.
> This is the code I use...
>
> #include <stdio.h>
> #include <conio.h>
> main()
> {
> clrscr();
> printf("Wow it works...\n");
> getchar();
> }
>
> It seems like <conio.h> does not exist in as/400 ?

You're right theres no console IO functions so no conio.h include file.
Screen IO on AS/400 is a different stff.