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C++23 Language Features and Reference Cards

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C++23 Library Features and Reference Cards   In this blog post, you’ll see all C++23 features! Each with a short description and additional code example. Prepare for a ride! For language features please see the previous article: C++23 Language Features and Reference Cards - C++ Stories This article is “in progress”, most topics are completed, but a few sections are “to-do”.

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C++23 Language Features and Reference Cards

Updated:

C++23 Language Features   In this blog post, you’ll see all C++23 language features! Each with short description and additional code example. Prepare for a ride! For library features please see the next article: C++23 Library Features and Reference Cards - C++ Stories Want your own copy to print?   If you like, I prepared PDF I packed both language and the Standard Library features.

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Around the World in C++: Exploring Time Zones with std::chrono

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While most time zones use simple hour offsets from UTC, some regions have chosen unusual time differences. In this blog post, we’ll explore how we can discover such zones using C++20’s chrono library. We’ll use GCC 14.2 as it fully supports C++20 chrono and also std::print from C++23. First Attempt: Basic Zone Iteration   C++20 introduced comprehensive time zone support through the <chrono> library.

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What is the current time around the world? Utilizing std::chrono with time zones in C++23

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In this blog post, we will explore handling dates using std::chrono, including time zones. We’ll utilize the latest features of the library to retrieve the current time across various time zones, taking into account daylight saving time changes as well. Additionally, we will incorporate new capabilities introduced in C++23, such as enhanced printing functions and more.

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C++ String Conversion: Exploring std::from_chars in C++17 to C++26

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With the introduction of C++17, the C++ Standard Library expanded its capabilities for converting text to numbers with the addition of std::from_chars. This low-level, high-performance API offers significant advantages over previous methods, such as atoi and stringstream. In this article, we will explore the evolution of string conversion routines from C++17 through C++26, highlighting key improvements like constexpr support and enhanced error handling.

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Enum Class Improvements for C++17, C++20 and C++23

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The evolution of the C++ language continues to bring powerful features that enhance code safety, readability, and maintainability. Among these improvements, we got changes and additions to enum class functionalities across C++17, C++20, and C++23. In this blog post, we’ll explore these advancements, focusing on initialization improvements in C++17, the introduction of the using enum keyword in C++20, and the std::to_underlying utility in C++23.

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22 Common Filesystem Tasks in C++20

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Working with the filesystem can be a daunting task, but it doesn’t have to be. In this post, I’ll walk you through some of the most common filesystem operations using the powerful features introduced in C++17, as well as some new enhancements in C++20/23. Whether you’re creating directories, copying files, or managing permissions, these examples will help you understand and efficiently utilize the std::filesystem library.

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Function Composition and the Pipe Operator in C++23 – With std::expected

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In this blog post, we’ll show how to implement a custom pipe operator and apply it to a data processing example. Thanks to C++23 and std::expectedwe can write a rather efficient framework that easily handles unexpected outcomes. This is a collaborative guest post by prof. Bogusław Cyganek: Prof. Cyganek is a researcher and lecturer at the Department of Electronics, AGH University of Science and Technology in Cracow, Poland.

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