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1-day workshop on May 30: Safe and Efficient C++ for Embedded Environments -- Andreas Fertig

By Blog Staff | May 9, 2025 05:03 PM | Tags: None

me.pngFriday, May 30th, 2025, 10:00 - 18:00 Berlin time (online)

1-day workshop on May 30: Safe and Efficient C++ for Embedded Environments

by Andeas Fertig

About the training

I'm thrilled to let you know that I'll give the workshop "Safe and Efficient C++ for Embedded Environments".

The workshop will take place on Friday, May 30th, 2025, 10:00 - 18:00 Berlin time. It is a remote workshop, so we can join from everywhere.

The course is specifically for people in the embedded domain. You'll learn about various features of modern C++, as you can see in the outline below:

  • Language features in C++
    • References
    • nullptr
    • Explicit data type conversion
    • Uniform initialization
    • Digit separator
    • auto type deduction
    • range-based for loops
    • Strongly typed enum
    • static or inline
    • Attributes
  • ROM-ability
  • Living without the heap
  • Dynamic memory management
  • alignas & alignof
  • Placement-new
  • Implementing a pool allocator
  • std::launder
  • std::unique_ptr
  • std::start_life_time_as

C++ on Sea 2025 Full Schedule, including workshops

By philsquared | May 9, 2025 08:35 AM | Tags: None

C++ on Sea 2025 runs from 23rd-25th June, with workshops on 26th-27th.

The full 2025 schedule is now available

by C++ on Sea

From the article:

This year we are, once again, running 2-day workshops - but they will be after the main conference, at the end of the week. As usual we have a great range of timely topics from world-class instructors to help you keep ahead.

We'll kick off with [a keynote from] Herb Sutter... regroup in the middle with Timur Doumler... then round out with Kristen Shaker.

Lightning talks... conference dinner... and a C++ quiz night.

 

CLion Is Now Free for Non-Commercial Use

By Jordi Mon Companys | May 7, 2025 05:28 AM | Tags: None

Great news for C++ enthusiasts working on personal projects! JetBrains has announced that CLion is now available for free for non-commercial use.

CLion Is Now Free for Non-Commercial Use

by JetBrains

From the article:

"Whether you're a student, an Arduino experimenter, or someone who loves С and C++ with all your heart despite all the challenges these languages present, CLion is now available to you for free – as long as you're not using it for commercial work."

Speeding up C++ Code with Template Lambdas -- Daniel Lemire

By Blog Staff | May 5, 2025 01:51 PM | Tags: None

image-16-825x510.jpgInteger division is one of the most expensive operations in C++, but when the divisor is known at compile time, the compiler can optimize it significantly. This post explores different approaches—using templates, lambda expressions, and template metaprogramming—to speed up division while maintaining clean and efficient code.

Speeding up C++ Code with Template Lambdas

by Daniel Lemire

From the article:

Let us consider a simple C++ function which divides all values in a range of integers:

void divide(std::span<int> i, int d) {
 for (auto& value : i) {
 value /= d;
 }
}

A division between two integers is one of the most expensive operations you can do over integers: it is much slower than a multiplication which is, in turn, more expensive than an addition. If the divisor d is known at compile-time, this function can be much faster. E.g., if d is 2, the compiler might optimize away the division and use a shift and a few cheap instructions instead. The same is true with all compile-time constant: the compiler can often do better knowing the constant. (See Lemire et al., Integer Division by Constants: Optimal Bounds, 2021)

GCC 15 is now available, with support for more draft C++26 features

By Blog Staff | May 1, 2025 02:08 PM | Tags: None

gccegg-65.pngGCC 15 is now available!

Here are some highlights from the release notes' C++ section:

  • C++ Modules have been greatly improved.
  • Compilation time speed ups, e.g. by improving hashing of template specializations.

... and more, see the release notes.

C++26: Removing Language Features -- Sandor Dargo

By Blog Staff | May 1, 2025 01:48 PM | Tags: None

SANDOR_DARGO_ROUND.JPGC++ is often seen as an ever-growing language, with each new standard introducing powerful features while maintaining backward compatibility. However, C++26 takes a step toward simplification by officially removing deprecated features, including implicit arithmetic conversions for enumerations and direct comparisons of C-style arrays, both of which previously led to unintended behavior.

C++26: Removing Language Features

by Sandor Dargo

From the article:

Probably you all heard that C++ is an ever-growing language - I wrote so many times as well. Each standard indeed comes with a great bunch of highly-anticipated features. At the same time, due to binary compatibility considerations, very few old features are removed. This has several implications:

  • we have probably more than one way to do something
  • the standard keeps growing

This is true, but let’s not forget that each new standard removes some features. In this post, let’s review what are the language features that are removed in C++26 and in a later post, we’ll have a look at the removed library features.

At this point, it’s worth mentioning that a removal from the language usually happens in two steps. First a feature gets deprecated, meaning that its users would face compiler warnings for using deprecated features. As a next step, which in some cases never comes, the compiler support is finally removed.

 

2025 Annual C++ Developer Survey "Lite"

By Blog Staff | Apr 30, 2025 04:11 PM | Tags: None

cpp_logo.png

The annual global C++ developer survey is now open. As the name suggests, it's short:

2025 Annual C++ Developer Survey "Lite"

Please take 10 minutes or so to participate! A summary of the results, including aggregated highlights of common answers in the write-in responses, will be posted publicly here on isocpp.org and shared with the C++ standardization committee participants to help inform C++ evolution.

The survey closes in one week.

Thank you for participating and helping to inform our committee and community!

Bjarne Stroustrup on How He Sees C++ Evolving -- David Cassel

By Blog Staff | Apr 29, 2025 01:44 PM | Tags: None

27c57b7a-colorized-bjarne_stroustrup_2013-by-victor-zavyalov-icpcnews-creative-commons-via-wikipedia-copy-1024x683.jpgBjarne Stroustrup, creator of C++, is advocating for the adoption of guideline-enforcing profiles to enhance the language's safety and security.

Bjarne Stroustrup on How He Sees C++ Evolving

by David Cassel

From the article:

“I wanted to educate the community at large, and members of WG21 in particular — on my views of C++’s intended direction of evolution,” Bjarne Stroustrup told TNS.

The 74-year-old creator of C++ has spent 40 years of his life watching the growth of the language he designed back in 1985.

To encourage some long-desired features, last month in Communications of the ACM Stroustrup published “21st Century C++“, a 6,300-word article promising to show “key concepts” for modern, type-safe “21st-century C++” to create “C++ on steroids”. For example, in the article Stroustrup highlighted long-standing experiments in approaches like writing safer code with guideline-enforcing profiles. To maintain compatibility with decades of already-written C++ code, “We can’t change the language,” Stroustrup writes. “But we can change the way it is used…”

Yet that evolution isn’t entirely up to him. In a section towards the end, Stroustrup acknowledges WG21, the standardization working group, and how it will inevitably play a role in how much the language can change.