Archive for month: February, 2021

Implementing Simple Futures with Coroutines

February 22, 2021

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Instead of return, a coroutine uses co_return returning its result. In this post, I want to implement…

TimelineCpp20

Synchronized Output Streams with C++20

February 18, 2021

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What happens when you write without synchronization to std::cout? You get a mess. With C++20, this should…

cover

The Five (Seven) Winners of my C++20 book are:

February 16, 2021

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Last week, I launched a quiz. The price was it to win one of the five vouchers for my book "C++20". The…

TimelineCpp20

An Improved Thread with C++20

February 12, 2021

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std::jthread stands for joining thread. In addition to std::thread (C++11), std::jthread automatically…

Undo

Resolving C/C++ Concurrency Bugs More Efficiently with Time Travel Debugging

February 10, 2021

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I'm happy to announce a guest post about Time Travel Debugging with UDB. At the end of the post, I…

TimelineCpp20Interruption

Cooperative Interruption of a Thread in C++20

February 4, 2021

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A typical question in my C++ seminars is: Can a thread be killed? Before C++20, my answer is no. With…

Latest news

std::execution: More SendersDecember 23, 2024 - 10:40 am
std::execution offers three types of senders: factories, adapters, and consumers. I’ll take a closer look at these today. Most of the following content is from proposal P2300R10. I will try to represent it more concisely. Sender Factory A sender factory is an algorithm that takes no senders as parameters and returns a sender. I already […]
std::execution: SenderDecember 16, 2024 - 11:25 am
std::execution offers three types of senders: factories, adapters, and consumers. I’ll take a closer look at these today. Most of the following content is from proposal P2300R10. I will try to represent it more concisely. Sender Factory A sender factory is an algorithm that takes no senders as parameters and returns a sender. execution::schedule execution::sender […]
std::execution: Composition of SendersDecember 9, 2024 - 10:25 am
Most sender adaptors are composable using the pipe operator. Let me start with a simple example of composition with the pipe operator. Instead of the nested function calls call1(call2(input)) you can write call1 | call2(input) or even: input | call1 | call2 Function composition Okay, this example was straightforward. Let’s do something more complicated. Proposal […]
std::execution: Inclusive ScanDecember 2, 2024 - 10:30 am
Inclusive scan solves problems related to range queries, such as calculating the sum of a range of elements in an array. It is also used in range minimum queries and various other algorithms. Before I present the asynchronous inclusive scan, I introduce the inclusive scan, aka prefix sum. Prefix Sum In computer science, the prefix […]
std::execution: Asynchronous AlgorithmsNovember 25, 2024 - 9:06 am
std::execution supports many asynchronous algorithms for various workflows. Presenting proposal P2300R10 is not easy. First, it is very powerful, and second, it is very long. Therefore, I concentrate on specific aspects of the proposal. What are the priorities of this proposal? Priorities The terms execution resource, execution agent, and scheduler are essential for the understanding […]
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 […]