October 25, Pavia, Italy
November 6-8, Berlin, Germany
November 3-8, Kona, HI, USA
By Adrien Hamelin | Jun 22, 2018 11:29 AM | Tags: c++17 advanced
Really everything.
Everything You Need to Know About std::any from C++17
by Bartlomiej Filipek
From the article:
With std::optional you can represent some Type or nothing. With std::variant you can wrap several variants into one entity. And C++17 gives us one more wrapper type: std::any that can hold anything in a type-safe way...
By Adrien Hamelin | Jun 20, 2018 12:29 PM | Tags: intermediate c++17
Another new feature.
C++17: Attributes
by Marc Gregoire
From the article:
C++17 introduces three new code attributes:
- [[fallthrough]]
- [[maybe_unused]]
- [[nodiscard]]
The first one was discussed in detail in my C++17: Fallthrough in switch statements blog post. The others are briefly explains below...
By Blog Staff | Jun 19, 2018 08:09 AM | Tags: None
There’s now a whole website for this frequently asked question, with links to up-to-date answers for C, C++, Java, and C#:
http://isvolatileusefulwiththreads.com/
Bookmark the site. Tell all your friends who need to know. Friends don’t let friends use volatile for inter-thread communication in C and C++.
By triangles | Jun 19, 2018 05:46 AM | Tags: c++11
A collection of personal notes and thoughts on rvalue references, their role in move semantics and how they can significantly increase the performance of your applications.
C++ rvalue references and move semantics for beginners
by Triangles @ internalpointers.com
From the article:
In my previous article Understanding the meaning of lvalues and rvalues in C++ I had the chance to explain to myself the logic behind rvalues. The core idea is that in C++ you will find such temporary, short-lived values that you cannot alter in any way.
Surprisingly, modern C++ (C++0x and greater) has introduced rvalue references: a new type that can bind to temporary objects, giving you the ability to modify them. Why?
By Adrien Hamelin | Jun 18, 2018 12:07 PM | Tags: advanced
Quick A: the type of the function must be explicit.
Recently on SO:
std::bind overload resolution
You need a cast to disambiguate the overloaded function:
(int(A::*)(int,int))&A::operator()
By Adrien Hamelin | Jun 18, 2018 12:06 PM | Tags: intermediate
Quick A: Only your own type can be accessed.
Recently on SO:
Accessing protected members in a derived class
You can only access protected members in instances of your type (or derived from your type).
You cannot access protected members of an instance of a parent or cousin type.In your case, the Derived class can only access the b member of a Derived instance, not of a different Base instance.
Changing the constructor to take a Derived instance will also solve the problem.
By Adrien Hamelin | Jun 13, 2018 12:40 PM | Tags: community
MAny things happened!
ISO C++ Committee – Rapperswil 2018 trip report
by Timur Doumler
From the article:
From the 4th to the 9th of June 2018, Phil Nash and I attended the ISO C++ Committee meeting in beautiful Rapperswil, Switzerland, representing JetBrains. We are continuing our active involvement in developing and standardising C++ (please read the last trip report for details)...
By Adrien Hamelin | Jun 13, 2018 12:39 PM | Tags: community
THe second part.
Triple trip report from ACCU, C++ Russia and C++Now 2018 – Part 2
by Jonathan Boccara
From the article:
This is my second part of the combined trip report for 3 conferences: ACCU, C++ Russia and C++Now, for their 2018 editions that I had the chance to attend...
By Adrien Hamelin | Jun 12, 2018 12:36 PM | Tags: community
ACCU’s Overload journal of June 2018 is out. It contains the following C++ related articles.
Overload 145 is now available
From the journal:
Automate all the things
Automation can speed things up. Frances Buontempo considers how it can make things worse. by Frances Buontempo
How to Write a Programming Language: Part 1, The Lexer
Writing a programming language might sound very difficult. Andy Balaam starts his series with a lexer. by Andy Balaam
Type-agnostic Tracing Using {fmt}
Tracing compound and custom types is a challenge. Mike Crowe demonstrates how {fmt} provides a safe alternative to printf. by Mike Crowe
A Short Overview of Object Oriented Software Design
Object oriented design has many principles. Stanislav Kozlovski demonstrates good design through a role playing game. by Stanislav Kozlovski
By Adrien Hamelin | Jun 12, 2018 12:31 PM | Tags: c++17 basics
Spreading the knowledge.
Modern C++ Features – std::optional
by Arne Mertz
From the article:
Sometimes we want to express the state of “nothing meaningful” instead of a value. This is the use case for C++17’s std::optional...