Define Concepts
There are two ways to define a concept: You can combine existing concepts and compile-time predicates, or you can apply a requires expression in four different ways.
Author Archive for: admin
Entries by Rainer Grimm
Type Erasure
Type erasure based on templates is a pretty sophisticated technique. It bridges dynamic polymorphism (object orientation) with static polymorphism (templates).
10 Days Left to Register Yourself for my Mentoring Program “Fundamentals for C++ Professionals”
The registration for my mentoring program, “Fundamentals for C++ Professionals”, is still open until 17th April. The program starts on 22nd April.
A std::advance Implementation with C++98, C++17, and C++20
In my last post, I presented a possible std::advance implementation based on tag dispatching. One of my readers mentioned that I could also implement std::advance based on constexpr if, or concepts. His right. So let’s do it.
A Sample for my Mentoring Program “Fundamentals for C++ Professionals”
Before you participate in my mentoring program, you should know more about it. Today, I publish as a teaser, step six of the 28 steps to master C++.
Software Design with Traits and Tag Dispatching
Tag Dispatching enables it to choose a function based on the type characteristics. This decision takes place at compile time and is based on traits.
Registration is Open for my Mentoring Program “Fundamentals for C++ Professionals”
I’m happy to announce: The registration for my mentoring program is now open until the 17th of April.
Policy
Thanks to templates, there are new ways of software design. Policies and traits are two commonly used idioms in C++.
Avoiding Temporaries with Expression Templates
Expression templates are typically used in linear algebra and are “structures representing a computation at compile-time, which are evaluated only as needed to produce efficient code for the entire computation” (https://en.wikipedia.org/wiki/Expression_templates). In other words, expression templates are only evaluated when needed.
Help for the People in Ukraine
Get my 3-books bundle Modern C++ Collection for half the price ($66 -> $33).