topic Re: how to use system_logical_name with #include declare? in Operating System - OpenVMS

how to use system_logical_name with #include declare?

wang_17 — Mon, 17 Jan 2005 08:35:06 GMT

system openvms 7.3-1,cc 6.5 and mms

now i have defined a logical_name is APPDIR
$define/system APPDIR "sys$sysdevice:[project]"
and declared in my c source file below:

#include "APPDIR:time.h"

but thrown "can't open APPDIR:time.h or file no found" message when i make
why the compiler can't translate logical name to real path? how i can use logical name with include declare?

help!!

Re: how to use system_logical_name with #include declare?

Kris Clippeleyr — Mon, 17 Jan 2005 08:49:25 GMT

Hi,

You should use the U**x syntax:

#include

Regards,

Kris (aka Qkcl)

Re: how to use system_logical_name with #include declare?

Martin Kirby_1 — Mon, 17 Jan 2005 09:05:50 GMT

I have no problem at all using that format.

However, when the file is not found I do not get an error message like that. It would be useful to see exactly what error you are getting.

Also, "time.h" is one of the standard header files. It might be interesting to see if you get the same problem with a file with a unique name.

Re: how to use system_logical_name with #include declare?

Bojan Nemec — Mon, 17 Jan 2005 09:15:08 GMT

Wang,

As a variant, you can use also the /INCLUDE_DIRECTORY qualifier of the CC command. You can specify many directories which will be searched for the include file. The second variant is to define DECC$USER_INCLUDE (for #include "") or the DECC$SYSTEM_INCLUDE (for #include <>) logical name with one or more directories to search for include files.

Examples:

$ CC /INCLUDE_DIRECTORY=sys$sysdevice:[project] my.c

for the second
$ DEFINE DECC$USER_INCLUDE sys$sysdevice:[project]
$ CC my.c

In both variants you then use the:

#include "time.h"

(without APPDIR) for including files. This is similar to the UNIX -I qualifier.

Bojan

Re: how to use system_logical_name with #include declare?

wang_17 — Mon, 17 Jan 2005 10:16:23 GMT

thx a lots, Kris Martin and Bojan, i think i got it.aha.

Re: how to use system_logical_name with #include declare?

Ian Miller. — Mon, 17 Jan 2005 10:19:12 GMT

wang, can you show your thanks to the people that have helped you by assigning ports as described here
http://forums1.itrc.hp.com/service/forums/helptips.do?#33

Re: how to use system_logical_name with #include declare?

Jan van den Ende — Mon, 17 Jan 2005 15:17:14 GMT

Hi Wang,

Welcome to VMS, also from me.

Reading Ian's post, I lookup up your Forum Profile.

"I have assigned points to 0 of 22 responses to my questions. "

So, I thought maybe I should explain some more.

on giving points:
try to give points to EVERY answer to your questions!

It is fully up to you HOW MANY, and you can just give 0 (zero) if you think you don't want to give more.
Any assignment, including zero, removes the "unassigned" header.

It is reflected in your Forum Profile.
If you do not know that yet, then click your own name (in the questions summary, in your question header, in the header of any of your replies).

In your profile you will notice how many answers you have assigned to, from how many total.

If you somehow want more info on any other Forum user, it is basically the same.

( and hey, we have all begun as newbies, most of us stumbled over this! )

Proost.

Have one on me.

Jan