Pass-by Value and Pass-by Reference - Examples with C++ Code & Interview Questions - Episode 6

In this episode of Pass by Value and Pass by Reference, we will look at two ways to pass data between methods in C++ code. First, we'll be looking at pass-by value. Next, we'll be looking at pass-by reference.

Pass by value is passing a copy of the data between methods. This is useful if we don't want the original data to be modified called functions. Pass by reference is when we pass a reference to the data. This means that the original data could have been modified after the method call was done.

Both of these techniques have their own advantages and disadvantages. With pass-by value, we can avoid some of the problems that can come with passing data by reference. But,
In the pass-by value, a local data object is created as a copy of the actual parameter.
Pass by reference does not create a local data object for the actual parameter. Instead, a reference to the actual parameter is passed to the procedure when it is called, and it works with the actual parameter.

C++ language offers complete flexibility so that programmers can use both capabilities as and when they need them.

If you're new to programming or object-oriented programming, this video is a great place to start. By the end of this video, you'll be able to understand the difference between pass-by value and pass-by reference, and apply the concepts to your own C++ code. Thanks for watching!

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