Answer to Question #1208 in C++ for mrt

Question #1208
When should a class be passed by reference and by the value? Why would we use the 'const' key word on variables passed by references?
1
Expert's answer
2010-12-20T16:51:36-0500
When passing class by value we create a local copy. The transfer of disadvantage that use excessive memory. Generally, we pass an object
class by reference. Const qualifier is used to prevent changes to the
object class.

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