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  Tutorial: C and Cpp Introduction to C and Cpp Basic C++ functions Tutorial

Tutorial for understanding the C++ functions. It shows you two functions that return the same result but are coded differently.

Tutorial Details:

Basic C++ functions

Tutorial for understanding the C++ functions. It shows you two functions that return the same result but are coded differently.

Let?s see how this works:

void square
First we create the prototype of the function. We use ?void? because we don?t want the function to return any value (if we don?t use void and we don?t return any value, the compile will return an error).

int i - the type of the argument we will use to hold the number we want to be multiplied. ?i? is the name of the argument variable.



square(num);
We use the function to display the square of the number in the ?num? variable.

After the ?main? function ends, the definition of the ?square? function begins. We use the ?i? variable (the argument) to be multiplied and stored in a variable which is then displayed using ?cout?. Using this function is the same as inserting the code inside it instead of the call of the function, ?square(num)?.


 

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C and Cpp Introduction to C and Cpp Basic C++ functions Tutorial

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