Web Reference: Oct 19, 2023 · Passing by reference is a technique for passing parameters to a function. It is also known as call by reference, call by pointers, and pass by pointers. In this article, we will discuss this technique and how to implement it in our C program. Passing by reference literally just means passing the memory address of where a variable is stored rather than the variable's value itself. That is what C allows, and it is pass-by-reference every time you pass a pointer, because a pointer is a reference to a variables memory location. It can be termed as "mixed calling mechanism", where some of the arguments are passed by value and others by reference. A function in C can have more than one arguments, but can return only one value. The Call by Reference mechanism is a good solution to overcome this restriction.
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