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  Tutorial: C and Cpp Programming in C and Cpp Basics of function templates Tutorial

This tutorial covers the basics of using function templates in C++. It shows you how to create them and explains how they work.

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C and Cpp Basics of function templates

This tutorial covers the basics of using function templates in C++. It shows you how to create them and explains how they work. Content:.

What are function templates used for?
Suppose you have a function that returns the sum of two numbers stored in two variables. The variables are passed as parameters (arguments).

But what if I want to add two doubles? The function accepts only int's, what can I do? Well here the function template comes into play.

Probably you already know what this code does and how function templates work.

This line creates a - let's say -universal type called AnyType .
Older versions of C++ don't understand the template so instead of typename you have to use the keyword class , like this:
// Function template
template < class AnyType>


 

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