Advance Features of Functions in C Programming Free Tutorial | A4U Official

Advance Features of Functions in C Language.
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Advance Features of Functions:
> Returning a non-integer value.
> Call by value / Call by reference.
> Recursion.

> Call by reference is not needed because, reference type in c++
> Reference variable in C++ is an alias of another variable.
> Reference variable must be initialized during declaration.
> When parameters are of reference type in a functions then the function is called reference.
    int &y =x; // Here & is reference not address in case of call by reference.

Call by Value and Call by Pointer are similar because in call by value, value is copied while in call by pointer, address is copied.
In call by reference, refers to the same variable using alias.

Topics covered in previous String Functions tutorial video:
1. Convert String to Uppercase.
2. Comparing Strings.
3. Outputting Strings.
4. (String) Standard Library Functions.

As we know Function is the place in which all program activity occurs. Function must have return type, as function can return single as well as multiple values.
If function calls itself then the function is said to be recursive functions.

In the above Advance Features of Functions video tutorial you will get to clear the basic concepts of Advance Features of Functions. Also checkout our other C Language video and become a pro in C language.
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