Template Metaprogramming: Type Traits Part 1 CppCon 2020 1 Jody Hagins
 jhagins@maystreet.com 
 coachhagins@gmail.comTemplate Metaprogramming: Type Traits CppCon 2020 2 IntroductionIntended Audience necessarily beginner to C++, but beginner to traditional template metaprogramming techniques • Type traits part of standard library for ~10 years 3Intended Audience • Beginner/Intermediate • Gentle necessarily beginner to C++, but beginner to traditional template metaprogramming techniques • Type traits part of standard library for ~10 years • Fundamentals have been in use for ~20 years 3Intended

Back to Basics Designing Classes (part 1 of 2) Klaus Iglberger, CppCon 2021 klaus.iglberger@gmx.de2 Klaus Iglberger C++ Trainer/Consultant Author of the C++ math library (Co-)Organizer Beck, TDD by Example)The Challenge of Class Design 10 Guideline: Design classes for easy change. Guideline: Design classes for easy extensions.Design Guidelines 11 Back to Basics: Class Design (Part ) const; 23 Using inheritance naively to solve our problem easily leads to … … many derived classes; … ridiculous class names; … deep inheritance hierarchies; … duplication between similar implementations

Back to Basics Designing Classes (part 1 of 2) Klaus Iglberger, CppCon 2021 klaus.iglberger@gmx.de2 Klaus Iglberger C++ Trainer/Consultant Author of the C++ math library (Co-)Organizer default constructor … • initializes all data members of class (user-defined) type … • but not the data members of fundamental type. struct Widget { int i; std::string s; int* pi; }; int default constructor … • initializes all data members of class (user-defined) type … • but not the data members of fundamental type. struct Widget { Widget() {} int i; std::string s; int*

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 4 The VirtualBox shell 50 5 Classes (interfaces) 52 5.1 IAdditionsFacility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . virtualization engine below. It is completely documented in this SDK Reference – see chapter 5, Classes (interfaces), page 52 and chapter 6, Enumerations (enums), page 351 – and available to anyone who client code that uses the web service: a) For Java as well as Python, the SDK contains easy-to-use classes that allow you to use the web service in an object-oriented, straightforward manner. We shall refer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 4 The VirtualBox shell 50 5 Classes (interfaces) 52 5.1 IAdditionsFacility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . virtualization engine below. It is completely documented in this SDK Reference – see chapter 5, Classes (interfaces), page 52 and chapter 6, Enumerations (enums), page 350 – and available to anyone who client code that uses the web service: a) For Java as well as Python, the SDK contains easy-to-use classes that allow you to use the web service in an object-oriented, straightforward manner. We shall refer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 4 The VirtualBox shell 48 5 Classes (interfaces) 50 5.1 IAdditionsFacility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . virtualization engine below. It is completely documented in this SDK Reference – see chapter 5, Classes (interfaces), page 50 and chapter 6, Enumerations (enums), page 317 – and available to anyone who client code that uses the web service: a) For Java as well as Python, the SDK contains easy-to-use classes that allow you to use the web service in an object-oriented, straightforward manner. We shall refer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 4 The VirtualBox shell 48 5 Classes (interfaces) 50 5.1 IAdditionsFacility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . virtualization engine below. It is completely documented in this SDK Reference – see chapter 5, Classes (interfaces), page 50 and chapter 6, Enumerations (enums), page 317 – and available to anyone who client code that uses the web service: a) For Java as well as Python, the SDK contains easy-to-use classes that allow you to use the web service in an object-oriented, straightforward manner. We shall refer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 4 The VirtualBox shell 42 5 Classes (interfaces) 44 5.1 IAdditionsFacility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . virtualization engine below. It is completely documented in this SDK Reference – see chapter 5, Classes (interfaces), page 44 and chapter 6, Enumerations (enums), page 289 – and available to anyone who client code that uses the web service: a) For Java as well as Python, the SDK contains easy-to-use classes that allow you to use the web service in an object-oriented, straightforward manner. We shall refer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 4 The VirtualBox shell 42 5 Classes (interfaces) 44 5.1 IAdditionsFacility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . virtualization engine below. It is completely documented in this SDK Reference – see chapter 5, Classes (interfaces), page 44 and chapter 6, Enumerations (enums), page 262 – and available to anyone who client code that uses the web service: a) For Java as well as Python, the SDK contains easy-to-use classes that allow you to use the web service in an object-oriented, straightforward manner. We shall refer

Explanation and analysis of some key concepts in django CMS. Reference Technical reference material, for classes, methods, APIs, commands. Join us online The django CMS Association [https://www.django-cms.org/en/about-us/] makemigrations polls_cms_integration python manage.py migrate polls_cms_integration Note All plugin classes must inherit from cms.plugin_base.CMSPluginBase and must register themselves with the plugin_pool type="radio" name="choice" value="{{ choice.id }}"> {{ choice.choice_text }}