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Text replacement - "<google>BUY_OBJC</google>" to "<htmlet>objc<htmlet>"
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<googlehtmlet>BUY_OBJCobjc</googlehtmlet>
In the preceding chapters on object-oriented programming we have used, but not described, a feature of Objective-C (actually derived from the underlying C programming language) in the form of ''pointers'' and ''indirection''. A clear understanding of this topic is important when working with objects and also when passing values as arguments to methods and functions.
