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OrbWorks Community Forum • View topic - Passing pointers to functions
Page 1 of 1

PostPosted: Fri Jan 10, 2003 1:07 am
by MarzAstral
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.

PostPosted: Fri Jan 10, 2003 5:25 am
by wolfgang
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

PostPosted: Sat Jan 11, 2003 9:45 pm
by KOU
http://pw1.netcom.com/~tjensen/ptr/ch1x.htm

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

KOU