Archive for category: C++20

The Formatting Library in C++20

January 22, 2024

Today, I will start a series about the formatting library in C++20. The series is based on my C++20…

std::span in C++20: More Details

January 15, 2024

A std::span represents an object that refers to a contiguous sequence of objects. Today, I want to write…

The autogenerated Equality Operator

January 8, 2024

You can define the three-way comparison operator or request it from the compiler with =default. But…

A Coroutines-Based Single Consumer – Single Producer Workflow by Ljubic Damir

December 18, 2023

I'm happy to present in this guest post by Ljubic Damir a typical use-case for coroutines: a producer…

A Bug in the Priority Scheduler for Coroutines

December 11, 2023

In my last two posts, I presented priority schedulers for coroutines. The schedulers had a bug. First…

An Advanced Priority Scheduler for Coroutines

December 4, 2023

Today, I use the straightforward scheduler from the post "A Priority Scheduler for Coroutines" and improve…

A Priority Scheduler for Coroutines

November 27, 2023

In this post, I will extend the straightforward scheduler from Dian-Lun with priorities. This…

Coroutines: A Scheduler for Tasks by Dian-Lun Lin

November 20, 2023

The last post "A Concise Introduction to Coroutines by Dian-Lun Lin" provide the theory. Today, Dian-Lun…

A Concise Introduction to Coroutines by Dian-Lun Lin

November 13, 2023

Today, I will start a miniseries about a scheduler for tasks. The starting point of this miniseries…

The Ranges Library in C++20: More Design Choices

November 6, 2023

The ranges library in C++20 made due to performance reasons a few unique design choices. These choices…

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C++20: Query Calendar Dates and Ordinal DatesApril 22, 2024 - 9:53 am
The extended chrono library makes it relatively easy to ask for the time duration between calendar dates. This post is the sixth in my detailed journey through the chrono extension in C++20: Query Calendar Dates Without further ado, the following program queryCalendarDates.cpp queries a few calendar dates. // queryCalendarDates.cpp #include <chrono> #include <iostream> int main() […]
C++20: Displaying and Checking Calendar DatesApril 15, 2024 - 9:20 am
I created calendar dates in my last post, “C++20: Creating Calendar Dates,” and I will display and check them today. This post is the fifth in my detailed journey through the chrono extension in C++20: Displaying Calendar Dates Thanks to std::chrono::local_days or std::chrono::sys_days, you can convert calendar dates to a local or a system std::chrono::time_point. […]
C++20: Creating Calendar DatesApril 8, 2024 - 10:51 am
In this post, I will dive deeper into calendar dates and create them. If this post is too overwhelming for you, read my previous ones: C++20 supports constants and literals to make using calendar-date types more convenient. Constants and Literals for Calendar Types Let me start with the constants for std::chrono::weekday, and std::chrono::month. std::chrono::Monday std::chrono::Thuesday […]
C++20: Time of DayMarch 25, 2024 - 10:08 am
This new data type std::chrono::hh_mm_ss in C++20 stands for the time of day. Time of Day std::chrono::hh_mm_ss is the duration since midnight split into hours, minutes, seconds, and fractional seconds. This type is typically used as a formatting tool. First, the following table gives you a concise overview of std::chrono::hh_mm_ss instance tOfDay. Depending on the […]
C++20: Basic Chrono Terminology with Time Duration and Time PointMarch 18, 2024 - 10:34 am
Today, I continue my journey through the basic types with time durations and time points. Time Durations C++14 introduced helper types such as std::chrono::seconds for time durations and corresponding time literals such as 5s. C++20 added new helper types. The following table shows all for completeness. Often the time duration std::chrono::days and the calendar date […]
My Next Mentoring Program: “Concurrency with Modern C++” startsMarch 11, 2024 - 11:24 am
My next mentoring program, “Concurrency with Modern C++”, starts on the 15th of March. Registration is open.