The call by reference method in C++ will do an operation of passing arguments as a reference copy into the formal parameter. Within the call by reference programs method, the reference operator is used to access the actual arguments as of in the call.

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In this CPP program of call by reference method, there is few types of functions also available. They are,

• Passing by value,
• Passing by Independent Reference,
• Passing by Return reference,
• Swapping using Call by reference,
• Passing by Objects,
• Passing by reference parameter,
• Passing by pointers

All above call by reference methods source codes are given as a link. Click the above links and you will get the actual free C++ programs. Anyone can is this program as their study material, lab programs or as a sample program for their reference. Improve your knowledge.