1: Get the following 4 files and put in one dir.
 
	README : This file : http://pastebin.org/7125
	dfs.cpp   : http://pastebin.org/7124
	makefile  : http://pastebin.org/7121
	graph.xml : http://pastebin.org/7122

2: make dfs 
	# You must have the compiled graphml reader to successfuly run make.
	# I have put graphml.o in my aux dir, as you can see from my make file.
	# You may need to adjust my makefile slightly.

3 $ dfs < graph.xml


The output I get is: 

**************************************************************************************************

inside function - OK.
write_data  eWeight: Light
write_data  eWeightCopy: Light

outside function - the data in eWeightCopy has been lost!
write_data  eWeight: Light
write_data  eWeightCopy: 
out.xml (END) 

**************************************************************************************************

HERE IS THE PROBLEM.
Notice where it says "inside function - OK."
 eWeight and eWeightCopy both have correct data, namely "Light";

But where it says "outside function - the data in eWeightCopy has been lost!"
 eWeight still has correct data, but eWeightCopy 's data has just vanished.


If you look at dfs.cpp you'll see that when write_data(g) is run inside the function 
that copys eWeight to eWeightCopy, all is OK.

But when write_data(g) is run outside the function the data is lost.

Not being able to store data for later retrieval is a show stopper.
Can anyone suggest a workaround.

Thanks much
-Caligula