Archive for category: Blog

gleise

C++ Core Guidelines: Taking Care of your Child Thread

May 18, 2018

/

When you create a new child thread, you must answer an important question: should you wait for the child…

retriever

C++ Core Guidelines: Sharing Data between Threads

May 11, 2018

/

If you want to have fun with threads, you should share mutable data between them. To get no data race…

wrench 24261 640

C++ Core Guidelines: Use Tools to Validate your Concurrent Code

May 4, 2018

/

Today, I'm happy to write about the probably most important C++ Core Guidelines for concurrency rule:…

thread 841607 640

C++ Core Guidelines: More Rules about Concurrency and Parallelism

April 27, 2018

/

Writing multithreading programs is hard, even harder if the program should be correct. The rules of the…

timeline11 14

C++ Core Guidelines: Rules for Concurrency and Parallelism

April 21, 2018

/

C++11 is the first C++ standard that deals with concurrency. The basic building block for concurrency…

RainerGrimmSmall

The new pdf bundle is ready: Functional Features in C++

April 15, 2018

/

I have prepared the pdf bundle. To get it is quite simple. If you subscribe to the newsletter, you…

cheetah

C++ Core Guidelines: The Remaining Rules about Performance

April 13, 2018

/

Today, I will write about the remaining ten rules of performance. Ten rules seem to be a lot, but only…

C++ Core Guidelines: More Rules about Performance

April 4, 2018

/

In this post, I continue my journey through the rules to performance in the C++ Core Guidelines. …

memoryFake

The Truth about “Raw Pointers Removed from C++”

April 2, 2018

/

Five bloggers have teamed up worldwide to deliver an April Fool's joke to readers about eliminating pointers.…

memory

No New New: Raw Pointers Removed from C++

March 26, 2018

/

Two weeks ago, the ISO C++ standard meeting took place in Jacksonville. Today I want to make a…

Latest news

std::executionNovember 18, 2024 - 9:03 am
std::execution, previously known as executors or Senders/Receivers, provides “a Standard C++ framework for managing asynchronous execution on generic execution resources“. (P2300R10) Side Note Change of plans. My original plan was to present the C++26 library after the core language. However, the implementation status of the library is not good enough. Therefore, I decided to continue […]
C++26 Core Language: Small ImprovementsNovember 4, 2024 - 8:34 am
There are more small improvements in the C++26 language, which you should know. static_assert extension First, here’s the syntax of static_assert in C++11: static_assert(compile time predicate, unevaluated string) With C++26, the string can be a user-defined type having the following properties: static_assert can now be used with a format string. Here’s a nice example from […]
Placeholders and Extended Character SetOctober 28, 2024 - 10:19 am
Placeholders are a nice way to highlight variables that are no longer needed. Additionally, the character set of C++26 will be extended. Placeholders Structured bindings are a C++17 feature that allows you to bind multiple variables to the elements of a structured object. The following program demonstrates using tuples and structured bindings to return and […]
Contracts in C++26October 21, 2024 - 9:54 am
Contracts allow you to specify preconditions, postconditions, and invariants for functions. Contracts should already be part of C++20 but were removed in the standard meeting in Cologne. Here is what Herb Sutter said about contracts on Sutter’s Mill: “contracts is the most impactful feature of C++20 so far, and arguably the most impactful feature we […]
Reflection in C++26: Determine the LayoutOctober 14, 2024 - 9:42 am
Thanks to reflection, you can determine the layout of types. My examples are based on the reflection proposal P2996R5. Class Layout The following program determines the class layout of a few members. // classLayout.cpp #include <experimental/meta> #include <iostream> #include <utility> #include <vector> #include <array> struct member_descriptor { std::size_t offset; std::size_t size; bool operator==(member_descriptor const&) const […]
Reflection in C++26: Metafunctions for Enums and ClassesOctober 7, 2024 - 1:53 pm
Today, I continue my journey through reflection in C++26 and play with enums and classes. The names of the metafunctions to access an Enum or a Class member are often identical. Access the Members of an Enum The following program is based on one by Daveed Vandevoorde. Daveed is one of the fathers of reflection, […]