From:	ao950 AT FreeNet DOT Carleton DOT CA (Paul Derbyshire)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: "lookuping" error
Date:	31 Dec 1997 11:06:51 GMT
Organization:	The National Capital FreeNet
Lines:	42
Message-ID:	<68d90b$3v4@freenet-news.carleton.ca>
References:	<Pine DOT SUN DOT 3 DOT 96 DOT 971230215407 DOT 19900A-100000 AT pita DOT cs DOT huji DOT ac DOT il>
Reply-To:	ao950 AT FreeNet DOT Carleton DOT CA (Paul Derbyshire)
NNTP-Posting-Host:	freenet3.carleton.ca
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

oferco (oferco AT cs DOT huji DOT ac DOT il) writes:
> Hye,
> 
> Anyone who can, PLEASE answer this:
> 
> My compiler complains:
> foo.cc: in method x:
> foo.cc: 3523: cannot lookup method in incomplete type 'Memory'
> 
> where Memory is a class I use in the Method x, which is 
> a member of the class A - defined in foo.cc and declared
> in foo.hh
> BUT
> all the other methods of A, which use Memory, are not reffered 
> to by this kind of error - only x !!!
> 
> WHATS WRONG???

All the other uses probably pass pointers to the class around. It looks
like you've got a forward declaration like

class Memory;

followed by this class, and later by the Memory class.

You should instead either change method X in the class to just

inline int x (Foo bar, Memory lapse);

And write a method body after the body of class Memory:

inline int x (Foo bar, Memory lapse) {
  lapse.happen();
  bar.baz();
  return 42;
}
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Paul Derbyshire ao950 AT freenet DOT carleton DOT ca pgd73 AT hotmail DOT com

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