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Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /home/jerdew5/orbworks.com/forum/includes/bbcode.php on line 472

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OrbWorks Community Forum • View topic - Passing pointers to functions

Passing pointers to functions

Discuss PocketC for CE (including Desktop Edition)

Postby MarzAstral on Fri Jan 10, 2003 1:07 am

I'm trying to pass data to a function throught pointers so i can have to function return two values (not return x;). i know how to pass a pointer to a function but i can't figure out how to get the function to modify a pointer so i can retrieve the modified value once the function exits. Here's a piece of test code i was using:

pointer p;

list(pointer j){putsl(j); j = 6;}

main()
{
int n;
p = &n;
n = 5;
list(*p);
putsl(n);
}

i tried dereferencing j but that wouldn't even compile. i'm trying to get "n" to print 6 to the console output in the end.
MarzAstral
 
Posts: 8
Joined: Mon Sep 23, 2002 4:54 pm
Location: USA

Postby wolfgang on Fri Jan 10, 2003 5:25 am

Try this:


pointer p;

list(pointer j)
{
putsl(*j);
*j = 6;
}

main()
{
int n;
n = 5;
list(&n);
putsl(n);
}


Composing music on the PocketPC! - http://www.pdamusician.com
Composing music on the PocketPC! - http://www.pdamusician.com
wolfgang
 
Posts: 281
Joined: Tue Dec 12, 2000 4:22 am
Location: USA

Postby KOU on Sat Jan 11, 2003 9:45 pm

http://pw1.netcom.com/~tjensen/ptr/ch1x.htm

NOTE: sizeof() doesnot exist in PocketC. all variables types have size 1.

KOU
KOU
 
Posts: 92
Joined: Mon Mar 18, 2002 8:04 pm
Location: USA


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