Coroutines

Coroutines are functions that can suspend and resume their execution while keeping their state. The evolution in C++20 goes one step further.

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Tags: C++20
Views: 69014

Latches And Barriers

Latches and barriers are simple thread synchronisation mechanism which enables it that some threads wait until a counter becomes zero. We will presumably in C++20 get latches and barriers in three variations: std::latch, std::barrier, and std::flex_barrier.

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Tags: C++20
Views: 30025

std::future Extensions

Tasks in the form of promises and futures have in C++11 an ambivalent reputation. At on hand, they are a lot easier to use than threads or condition variables; at the other hand, they have a great deficiency. They can not composed. C++20 will overcome this deficiency.

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Tags: C++20, tasks
Views: 32535

And the Winners are

Mads Ravn, Antonis Polykratis, Martin Mancuska, David Farago, Edgar Rojas, and Adrian Javaloy.

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Views: 7607

Atomic Smart Pointers

C++20 will have atomic smart pointers. To be exactly, we will get a std::atomic_shared_ptr and a std::atomic_weak_ptr. But why? std::shared_ptr and std::weak_ptr are already thread-safe. Sort of. Let me dive into the details.

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Tags: C++20
Views: 103904

Parallel Algorithms of the Standard Template Library

The idea is quite simple. The Standard Template has more than 100 algorithms for searching, counting, and manipulating of ranges and their elements. With C++17, 69 of them are overloaded and a few new are added. The overloaded and new algorithms can be invoked with a so-called execution policy. By using the execution policy, you can specify whether the algorithm should run sequential, parallel, or parallel and vectorised.

 

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Tags: C++17
Views: 52699

Multithreading with C++17 and C++20

Forecasts about the future are difficult. In particular, when they are about C++20. Nevertheless, I will take a look into the crystal ball and will write in the next posts about, what we will get with C++17  and what we can hope for with C++20.

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Tags: C++20, C++17
Views: 152501

Expression Templates

Expression templates are "structures representing a computation at compile time, which structures are evaluated only as needed to produce efficient code for the entire computation" (https://en.wikipedia.org/wiki/Expression_templates). As needed, now we are in the centre of lazy evaluation and in the centre of this post.

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Views: 29964

C++ is Lazy: CRTP

In my previous post Recursion, List Manipulation and Lazy Evaluation I wrote about the characteristics of functional programming:  The story about lazy evaluation in C++ is short. Sorry to say but I have forgotten templates. The two advanced techniques CRTP and expression templates are based on lazy evaluation.

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Tags: templates
Views: 73454

Six Vouchers to Win

Ivan Cukic is currently writing a book on "Functional Programming in C++" for Manning Publication. Currently, 4 out of 14 chapters are published under the Manning Early Access Program. A new chapter is planned to appear each month. Here are the details of his book.

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Views: 11813

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