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Re: [XML] Assertion when GetAttrCount() [message #6934 is a reply to message #6906]

Tue, 05 December 2006 13:12

mirek
Messages: 14267
Registered: November 2005

Ultimate Member

g00fy wrote on Mon, 04 December 2006 02:29

#include <CtrlLib/CtrlLib.h>
#include <ide/Common/Common.h>
#include <Core/Core.h>

U++ headers are always arranged so that "higher" include "lower", means "#include <ide/Common/Common.h>" is enough here.

Quote:

This code asserts on the call to "xml.GetAttrCount()". It thinks the vector holding those items have -1 items only...

-1 in items is generally the sign of broken pick semantics. Indeed:

	XmlNode makefile = xml.Add("makefile");
	
	XmlNode lib = makefile.Add("lib");

Here you pick "makefile" node out of xml and "lib" out of makefile. This is basically "java style code"...

In U++ we are usually referencing objects created inside complex structures:

	XmlNode& makefile = xml.Add("makefile");
	
	XmlNode& lib = makefile.Add("lib");

These are basic paradigms of U++ - perhaps unusual for newcomers, but in the end this is a way how to keep things simple and deterministic (and avoid smart pointers and GC wishes...)

Mirek

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