February 10-15, Hagenberg, Austria
March 19-21, Madrid, Spain
April 1-4, Bristol, UK
June 16-21, Sofia, Bulgaria
By Meeting C++ | Sep 29, 2022 02:34 AM | Tags: meetingcpp community
Next week hosts the Meeting C++ online job fair on Tuesday (3-6pm CEST/Berlin) and Wednesday (8-11pm CEST/Berlin).
by Jens Weller
About the event:
During the event you'll be able to join a virtual lounge and go from table to table to meet various employers for C++. Employers can still sign up until Monday. You already can share your resume/CV via the sharing form at Meeting C++.
By Blog Staff | Sep 28, 2022 10:24 AM | Tags: None
Another CppCon 2022 keynote video is posted:
Contemporary C++ in action: Daniela Engert
From the post:
Daniela Engert on contemporary C++ at her CppCon 2022 keynote in Aurora, Colorado!
This video is in “prerelease” and cannot be found directly on our YouTube channel, instead we are providing a direct link here only! Feel free to share this with colleagues and friends and impress them with your insider access ��
By Andrey Karpov | Sep 27, 2022 04:01 AM | Tags: podcast jason turner cppcast
In this article, we are going to talk to Jason Turner, one of the CppCast founders. From 2015 to 2022 CppCast had weekly conversations with C++ conference speakers, library authors, writers, ISO committee members, and more. Keep reading to learn about the CppCast backstory.
A talk with Jason Turner: the history of CppCast, and why it was shut down
by Uliana Grishina
From the article:
Hello, Jason! I'm sure our readers know what CppCast is and have come here to learn its story and fate. Before we begin, we'd like to hear more about you and what you're doing now. Chances are even regular CppCast listeners may know you just as "Jason, the podcast host."
. So, could you tell us more about yourself? What do you do now and what did you do before you decide to stop CppCast?
By Vittorio Romeo | Sep 25, 2022 10:56 PM | Tags: None
In this article, we’ll explore how C++’s abstraction model heavily relies on compiler optimizations, unveiling some unfortunate examples of unexpected performance loss. Afterwards, we will compare how the three major compilers (GCC, Clang, and MSVC) fare in this area, and we’ll discuss some potential future improvements or workarounds.
the sad state of debug performance in c++
by Vittorio Romeo
From the article:
C++ developers should know that `std::move(0)` is semantically the same as `static_cast<int&&>(0)`, and most of them would expect the compiler to generate no code for the move, even with optimizations disabled. Turns out that GCC 12.2, Clang 14.0, and MSVC v19.x all end up generating a call instruction. [...]
By Legalize Adulthood | Sep 25, 2022 10:55 PM | Tags: None
Utah C++ Programmers has released a new video.
Cerealization and RPC with Cap'n Proto
by Richard Thomson
From the video description:
Cap'n Proto is a serialization and RPC (remote procedure call) framework built by the primary author of Google's Protobuf. "Cap’n Proto is an insanely fast data interchange format and capability-based RPC system. Think JSON, except binary. Or think Protocol Buffers, except faster." (Cap'n Proto's web site refers to serialization as "cerealization" in a tongue-in-cheek fashion.)
Cap'n Proto is designed for the use case of efficiently transmitting complex message structures across the network as part of a distributed system. So while it is a serialization method like converting your data structures to JSON, it is more explicitly designed for network oriented messages and remote procedure call scenarios. It is also designed with efficiency in mind.
This month, Richard Thomson will give us an introduction to Cap'n Proto using a fictional comic book database as an example. We'll use Cap'n Proto to model some simple CRUD (create, read, update and delete) operations over RPC. We'll look at how application data structures are represented using Cap'n Proto.
By Blog Staff | Sep 25, 2022 12:28 PM | Tags: None
Are you using concepts?
Static, Dynamic Polymorphism, CRTP and C++20’s Concepts
by Thomas Sedlmair
From the article:
Let's talk about Polymorphism, CRTP as a way to use static polymorphism and how C++20 can change the way how we write code...
By Blog Staff | Sep 25, 2022 12:23 PM | Tags: None
Do you know about std::ssize()?
Reducing Signed and Unsigned Mismatches with std::ssize()
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-memberstd::ssize()function that returns a signed number of elements in a container.Let’s see how to use it...
By Administrator | Sep 23, 2022 08:01 AM | Tags: None
The 2022-09 mailing of new standards papers is now available.
| WG21 Number | Title | Author | Document Date | Mailing Date | Previous Version | Subgroup |
|---|---|---|---|---|---|---|
| N4917 | Working Draft, Standard for Programming Language C++ | Thomas Köppe | 2022-09-04 | 2022-09 | All of WG21 | |
| N4918 | Editors' Report - Programming Languages - C++ | Thomas Köppe | 2022-09-08 | 2022-09 | All of WG21 | |
| N4920 | Working Draft, C++ Extensions for Library Fundamentals, Version 3 | Thomas Köppe | 2022-08-15 | 2022-09 | All of WG21 | |
| N4921 | Editor's Report: C++ Extensions for Library Fundamentals, Version 3 | Thomas Köppe | 2022-08-15 | 2022-09 | All of WG21 | |
| N4922 | INCITS C++/WG21 agenda: 7-12 November 2022, Kona, HI US | John Spicer | 2022-09-05 | 2022-09 | All of WG21 | |
| P0543R2 | Saturation arithmetic | Jens Maurer | 2022-09-18 | 2022-09 | P0543R1 | LWG Library |
| P0792R11 | function_ref: a non-owning reference to a Callable | Vittorio Romeo | 2022-09-13 | 2022-09 | P0792R10 | LWG Library |
| P0957R9 | Proxy: A Polymorphic Programming Library | Mingxin Wang | 2022-09-15 | 2022-09 | P0957R8 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution |
| P0987R1 | polymorphic_allocator instead of type-erasure | Pablo Halpern | 2022-09-14 | 2022-09 | P0987R0 | LWG Library |
| P1030R5 | std::filesystem::path_view | Niall Douglas | 2022-09-15 | 2022-09 | P1030R4 | LEWG Library Evolution |
| P1985R3 | Universal template parameters | Gašper Ažman | 2022-09-17 | 2022-09 | P1985R1 | SG7 Reflection,EWG Evolution,LEWG Library Evolution |
| P2348R3 | Whitespaces Wording Revamp | Corentin Jabot | 2022-09-11 | 2022-09 | P2348R2 | EWG Evolution,CWG Core |
| P2495R1 | Interfacing stringstreams with string_view | Michael Hava | 2022-09-14 | 2022-09 | P2495R0 | LEWG Library Evolution |
| P2586R0 | Standard Secure Networking | Niall Douglas | 2022-09-13 | 2022-09 | SG4 Networking,LEWG Library Evolution | |
| P2587R3 | to_string or not to_string | Victor Zverovich | 2022-08-28 | 2022-09 | P2587R2 | LWG Library |
| P2588R1 | Relax std::barrier phase completion step guarantees | Gonzalo Brito | 2022-09-06 | 2022-09 | P2588R0 | SG1 Concurrency and Parallelism,LEWG Library Evolution |
| P2603R1 | member function pointer to function pointer | Jarrad Waterloo | 2022-09-04 | 2022-09 | P2603R0 | EWG Evolution,LEWG Library Evolution |
| P2620R2 | Improve the wording for Universal Character Names in identifiers | Corentin Jabot | 2022-09-13 | 2022-09 | P2620R1 | CWG Core |
| P2623R2 | implicit constant initialization | Jarrad J. Waterloo | 2022-09-12 | 2022-09 | P2623R1 | EWG Evolution |
| P2631R0 | Publish TS Library Fundamentals v3 Now! | Alisdair Meredith | 2022-09-12 | 2022-09 | LEWG Library Evolution,LWG Library | |
| P2636R0 | References to ranges should always be viewable | Hannes Hauswedell | 2022-09-14 | 2022-09 | SG9 Ranges,LEWG Library Evolution | |
| P2637R0 | Member visit and apply | Barry Revzin | 2022-09-17 | 2022-09 | LEWG Library Evolution | |
| P2638R0 | Intel's response to P1915R0 for std::simd parallelism in TS 2 | Daniel Towner | 2022-09-21 | 2022-09 | SG1 Concurrency and Parallelism,LEWG Library Evolution,LWG Library | |
| P2639R0 | Static Allocations | Torben Thaysen | 2022-09-21 | 2022-09 | EWGI SG17: EWG Incubator,LEWGI SG18: LEWG Incubator | |
| P2640R0 | Modules: Inner-scope Namespace Entities: Exported or Not? | Nathan Sidwell | 2022-09-12 | 2022-09 | EWG Evolution | |
| P2641R0 | Checking if a union alternative is active | Barry Revzin | 2022-09-17 | 2022-09 | LEWG Library Evolution | |
| P2642R0 | Padded mdspan layouts | Mark Hoemmen | 2022-09-14 | 2022-09 | LEWGI SG18: LEWG Incubator,LEWG Library Evolution | |
| P2643R0 | Improving C++ concurrency features | Gonzalo Brito Gadeschi | 2022-09-15 | 2022-09 | SG1 Concurrency and Parallelism |
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-memberstd::ssize()function that returns a signed number of elements in a container.Let’s see how to use it. ...
By Blog Staff | Sep 19, 2022 03:44 PM | Tags: None
Improving safety and security in GCC:
Enhance application security with FORTIFY_SOURCE
by Siddharth Sharma
From the article:
The FORTIFY_SOURCE macro provides lightweight support for detecting buffer overflows in various functions that perform operations on memory and strings. Not all types of buffer overflows can be detected with this macro, but it does provide an extra level of validation for some functions that are potentially a source of buffer overflow flaws. It protects both C and C++ code. ...