Can't incremen int inside funciton call -- bug?

[Daniel Keep]

Aldarris wrote:
> Hello.
> 
> I have a nested function that iterates through a tree recursively.
> here is it code:
> 
> void recursiveXMLTreeIteration(XMLNode currentNode, int treeLevel)
> {
> 	writefln(treeLevel);
> 	tabOffset.length = 0;
> 	for(int i = 0; i < treeLevel; i++)
> 		{tabOffset ~= "\t";}
> ........			
> 	foreach(XMLNode childNode; currentNode.getChildrenList())
> 		{recursiveXMLTreeIteration(childNode, treeLevel++);}
> }
> 
> recursiveXMLTreeIteration(this, 0);
> 
> Does not work as expected, in a tree of a root node plus two child nodes it prints 0,0,1.
> 
> It treeLevel++; is moved outside, works as expected:
> ........			
>         treeLevel++;
> 	foreach(XMLNode childNode; currentNode.getChildrenList())
> 		{recursiveXMLTreeIteration(childNode, treeLevel)
> }
> 
> 
> Prints 0,1,1,

It's a bug alright: in your code.

treeLevel++ is post increment.  It evaluates "treeLevel" and THEN
increments it.  You want pre increment: "++treeLevel".

	-- Daniel

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}

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