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Re: Calling data from a structure of pointers? [message #43030 is a reply to message #43028]

Thu, 10 March 2005 15:09

R.G.Stockwell
Messages: 163
Registered: October 2004

Senior Member

"Jonathan Greenberg" <usenet@estarcion.net> wrote in message
news:BE560C66.3FE3%usenet@estarcion.net...
> Hopefully this'll be a quicky -- I have a structure of pointers, so if I,
> for instance, print,structure.pointername I get something like:
>
> <PtrHeapVar5917><PtrHeapVar5922>

This is an odd result.
My guess is that structure.pointername is a structure of pointers.
(i.e. you have a stucture where the tag "pointername" is a structure
that has two pointers in it.

Anyways, here is a snippet showing how the structures and pointers work:

s = {p1:ptr_new(/alloc),p2:ptr_new(/alloc)}

pointtostruct = ptr_new(/alloc)
*pointtostruct = s
*s.p1 = 15
*s.p2 = 'hello'

print,'s.p1'
print,s.p1

print,'s.p2'
print,s.p2

print,'*s.p1'
print,*s.p1

print,'pointtostruct'
print,pointtostruct

print,'*pointtostruct'
print,*pointtostruct

print,'*(*pointtostruct).p1'
print,*(*pointtostruct).p1

end

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[Message index]

		Re: Calling data from a structure of pointers? By: Jonathan Greenberg on Fri, 11 March 2005 09:16
		Re: Calling data from a structure of pointers? By: Antonio Santiago on Thu, 10 March 2005 22:57
		Re: Calling data from a structure of pointers? By: R.G.Stockwell on Thu, 10 March 2005 15:09
		Re: Calling data from a structure of pointers? By: David Fanning on Thu, 10 March 2005 14:46

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