oop: how to switch between passing by reference and value

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Herbert 2013-4-25

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Hi all,

i've a class that inherits the "handle" class, objects therefore always passed by reference. But now I want to copy an array of objects of this class such that i can modify the original and the copy seperately. Is there any easy way to be able to decide between copying and object and passing it by reference?

Thank you!

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Answer 1

Daniel Shub 2013-4-25

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The documentation is pretty sparse, but also there: http://www.mathworks.co.uk/help/matlab/matlab_prog/copying-objects.html#brultwv

Copy Method for Handle Classes

Handle classes can derive copy functionality from the matlab.mixin.Copyable class. Class designers should investigate the use of this class in their class hierarchy design

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Answer 2

Matt J 2013-4-25

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编辑：Matt J 2013-4-25

When you want an independent copy of a handle object, call the constructor to create a new instance of the class. Then, if necessary, copy the data over one property at a time. You could write a class method e.g., called clone(), to automate this for you.