cpp17.tar.gz

C++17

C++20

Templates are one of the many powerful features of Modern C++ programming. And with each new C++ standard, they become more important. 

Templates provide an efficient way to make your code more flexible and reusable, this way you can avoid repeating code that would otherwise be identical except for different types. Templates also give you the ability to provide abstraction without a performance penalty.

However, templates can be difficult to apply, can be counterintuitive, and have tricky error messages.

This course gives you the necessary information to overcome these hurdles and dive into the advanced topics. You’ll visit the basics such as function and class templates, and then explore the details to templates such as instantiation and fold expressions. Our journey also includes techniques based on templates, the design, and future directions of templates such as concepts. Based on this exhaustive tour of templates, a basic understanding of C++ is sufficient to master this course.

Let’s get started!

Generic Programming Templates in C++

## Friends
Friends of a class template have access to all members of the class template.

A class or a class template can have a friendship to class or class templates, function or function templates, and types.

**Rules:**
  1. The declaration of friends can be made at an arbitrary place in the class declaration.
  2. The access rights in the class have no influence.
  3. Friendship will not be inherited.
  4. Friendship is not transitive.



>A friend has unrestricted access to the members of the class.
 


## General Friends
A class or a class template can grant friendship to each instance of a class template or a function template.









 



# Friends
Friends of a class template have access to all members of the class template.

A class or a class template can have a friendship to class or class templates, function or function templates, and types.

**Rules:**
  1. The declaration of friends can be made at an arbitrary place in the class declaration.
  2. The access rights in the class have no influence.
  3. Friendship will not be inherited.
  4. Friendship is not transitive.



>A friend has unrestricted access to the members of the class.
 


# General Friends
A class or a class template can grant friendship to each instance of a class template or a function template.









 



Introduction

Basics

Details

Techniques

Design

Future

Conclusion

Friends

Friends

General Friends