Path to the previous folder

[Zergi]

Hi

I've stupid problem... I don't know how to give a correct path to the previous folder or file. In my project I've folder where I keep sources.cpp but header isn't in this folder, so how can I give path of the header to the sources? Have I write

#include "/home/zerg/workspace/header.h"

#include "/home/zerg/workspace/header.h"

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?

example

header.h
[FOLDER] - > source1.cpp , source2.cpp

by default it is

#include "header.h

#include "header.h

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but it's wrong because header isn't in the same folder...

ps
sorry for chaos of this post ;p If in this post are any mistakes pleas correct me ;d

Best Regards