What are the different ways of passing parameters to the functions? Which to use when?

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What are the different ways of passing parameters to the functions? Which to use when?

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JackTerrance · Answer 1 · 2021-01-18T13:41:53+0000

Call by value − We send only values to the function as parameters. We choose this if we do not want the actual parameters to be modified with formal parameters but just used.
- Call by reference − We send address of the actual parameters instead of values. We choose this if we do want the actual parameters to be modified with formal parameters.