std::ssize() in C++20 -- by Bartlomiej Filipek

By Blog Staff | Sep 19, 2022 03:47 PM | Tags: None

Speaking of std::ssize...

std::ssize() in C++20

by Bartlomiej Filipek

From the article:

In this article, I’ll show another technique that avoids mixing signed and unsigned types.

In my article Integer Conversions and Safe Comparisons in C++20 we learned about cmp_* integer comparison functions that allow us to compare various types of integer types. The functions are safe because they help with mixing signed and unsigned types. In C++20, there’s another handy feature: the non-member std::ssize() function that returns a signed number of elements in a container.

Let’s see how to use it. ...

Safe comparisons in C++20 -- Bartlomiej Filipek

By Blog Staff | Sep 13, 2022 06:12 PM | Tags: None

Mixing integer types... what could go wrong? And how to make it go right?

Safe comparisons in C++20

by Bartlomiej Filipek

From the article:

Sometimes, If you mix different integer types in an expression, you might end up with tricky cases...

Non-standard containers in C++

By Andrey Karpov | Sep 13, 2022 08:31 AM | Tags: stable vector folly::fbvector devector containers colony circular buffer

We are going to describe the arrangement of the most curious non-STL containers and their differences from the standard containers.

Non-standard containers in C++

by Evgeny Shulgin

From the article:

The boost::devector is a hybrid of the std::vector and the std::deque. This container allows fast insertion at both its beginning and its end, just like the deque. But this container still keeps the vector features, such as the contiguous storage area and the conditions for the invalidation of iterators/pointers.

Microsoft C++ team at CppCon 2022 -- Sy Brand

By Blog Staff | Sep 12, 2022 07:08 PM | Tags: None

News from the conference, happening live in Aurora, CO, USA this week:

Microsoft C++ team at CppCon 2022

by Sy Brand

From the article:

The Microsoft C++ team has an exciting lineup of sessions at CppCon 2022. Many of us will also be present at our team’s booth in the main hall for the first two days of the conference. Come say hi and let us know if you have any questions about our talks, products, or anything else! You can also join the #visual_studio channel on the CppCon Discord to talk to us (note: to join, head to #directory channel first, and check the checkbox next to “Visual Studio” box).

We’re also running a survey on the C++ ecosystem. If you have a moment, please take our survey, it’s quick.

Here’s the lineup: ...

Integrating C++ header units into Office using MSVC (1/n) - Cameron DaCamara and Zachary Henkel

By Blog Staff | Sep 12, 2022 07:03 PM | Tags: None

A new post about modules, and see the related talk today at CppCon:

Integrating C++ header units into Office using MSVC (1/n)

by Cameron DaCamara and Zachary Henkel

From the article:

C++20 has had a lot to offer and one feature in particular requires the most thought of all when integrating into our projects: C++ modules (or C++ header units in this particular case). In this blog we will show a real world case of integrating a new C++20 feature into a large codebase that we might all be familiar with. ... This blog is the first in a series detailing experiences in integrating header units into the Office codebase.

Custom types and std::format from C++20--Bartlomiej Filipek

By Adrien Hamelin | Sep 5, 2022 11:40 AM | Tags: c++20

Do you use it?

Custom types and std::format from C++20

by Bartlomiej Filipek

From the article:

std::format is a large and powerful addition in C++20 that allows us to format text into strings efficiently. It adds Python-style formatting with safety and ease of use.

This article will show you how to implement custom formatters that fit into this new std::format architecture...

(Non) Static Data Members Initialization, from C++11 till C++20--Bartlomiej Filipek

By Adrien Hamelin | Sep 5, 2022 11:26 AM | Tags: c++20 c++17

How do you initialise your members?

(Non) Static Data Members Initialization, from C++11 till C++20

by Bartlomiej Filipek

From the article:

With Modern C++ and each revision of the Standard, we get more comfortable ways to initialize data members. There’s non-static data member initialization (from C++11) and inline variables (for static members since C++17).

In this blog post, you’ll learn how to use the syntax and how it has changed over the years. We’ll go from C++11, through C++14, and C++17 until C++20.

Updated in July 2022: added more examples, use cases, and C++20 features.

Modern C++ In-Depth — Variadic Templates and Parameter Packs

By Jens Maurer | Sep 2, 2022 03:47 AM | Tags: c++11 basics

Variadic templates

    Modern C++ In-Depth — Variadic Templates and Parameter Packs

    by Phani Adusumilli

From the article

    What if we could tell the compiler that it should expect to receive zero or more parameters (regardless of type)?

Upcoming C++ User Group meetings in September 2022

By Meeting C++ | Sep 1, 2022 01:59 AM | Tags: meetingcpp community

The monthly listing of upcoming C++ User Group meetings at Meeting C++:

Upcoming C++ User Group Meetings in September 2022

by Jens Weller

From the article:

The monthly listing of upcoming C++ User Group meetings! This time with a new group in Toulouse!

Meeting C++ online has a few meetings in September and hosts a lightning talk session tonight:

    31.8 C++ UG Meeting C++ online - C++ Lightning Talks
    1.9 C++ UG Meeting C++ online - C++ Community Planning session
    7.9 C++ UG Meeting C++ online - September - Corolib: distributed programming with C++ coroutines
    8.9 C++ UG Meeting C++ online - Meeting C++ online book & tool fair
    13.9 C++ UG Meeting C++ online - Hiring for C++ with Meeting C++
    20.9 C++ UG Meeting C++ online - Online C++ job fair (afternoon CEST)
    21.9 C++ UG Meeting C++ online - Online C++ job fair (evening CEST)

The concept of smart pointer static_ptr in C++

By Andrey Karpov | Aug 30, 2022 06:14 AM | Tags: unique_ptr static_ptr smart pointer c++20 c++17

In this article we are discussing a new smart pointer type – static_ptr. It is most similar to std::unique_ptr without dynamic allocations.

The concept of smart pointer static_ptr<T> in C++

by Evgeny Shulgin

From the article:

We can create the move_assigner structure in a similar way. We could also make copy_constructer and copy_assigner, but our implementation doesn't require them. In static_ptr, the copy constructor and copy assignment operator will be deleted (as in unique_ptr).