Hacker News with Generative AI: C++

C++26: Pack Indexing (sandordargo.com)
C++26 brings us pack indexing as a core language feature thanks to the proposal of Corentin Jabot and Pablo Halpern, P2662R3.

C++, Programming Languages, Language Features

59 points by HeliumHydride 4 days ago | 79 comments

Debugging C++ is a UI nightmare (core-explorer.github.io)
If you are a maintainer or developer of a debugger, don’t be offended, I’m not talking about you or your product.

C++, Debugging, User Interface

39 points by core-explorer 9 days ago | 20 comments

The surprising struggle to get a Unix Epoch time from a UTC string in C or C++ (berthub.eu)
So how hard could it be. As input we have something like Fri, 17 Jan 2025 06:07:07 in UTC, and we’d like to turn this into 1737094027, the notional (but not actual) number of seconds that have passed since 1970-01-01 00:00:00 UTC.

Programming, C++, Time, Unix

131 points by PascalW 9 days ago | 88 comments

Ada for the C++ or Java Developer – Concurrency (adacore.com)
Java and Ada both provide support for concurrency in the language. The C++ language has added a concurrency facility in its most recent revision, C++11, but we are assuming that most C++ programmers are not (yet) familiar with these new features. We thus provide the following mock API for C++ which is similar to the Java Thread class:

Programming, Java, C++, Concurrency

10 points by LiamPowell 9 days ago | 4 comments

LibEventCpp – a lightweight single-header library for Event-driven Programming (github.com/nguyenchiemminhvu)
LibEventCpp is a lightweight and portable C++14 library designed for handling events efficiently.

C++, Event-driven Programming, Libraries, Software, Open Source

12 points by ncmv92 12 days ago | 0 comments

ODB C++ ORM version 2.5.0 released (codesynthesis.com)
We have released ODB version 2.5.0.

New Releases, C++, Databases

5 points by todsacerdoti 15 days ago | 0 comments

Children discuss constexpr in C++ [video] (youtube.com)

Programming, C++, Education, Video

9 points by beesgobuzz 17 days ago | 0 comments

Sony Proposes Changing LLVM Clang Default to C++20 Mode (phoronix.com)
Sony engineers are proposing that the LLVM Clang compiler changes its default C++ mode from C++17 to C++20.

C++, Compilers, LLVM, Software, Programming

13 points by needlesslygrim 18 days ago | 0 comments

Cannonball: An enhanced OutRun engine (github.com/djyt)
CannonBall is an souped up game engine for the OutRun arcade game. The original 68000 and Z80 assembler code has been rewritten in C++. This makes it possible to make improvements suitable for modern platforms, including a higher frame-rate and widescreen support. It requires the original ROMs, as these contain elements including the graphics and audio data.

Game Development, Retro Gaming, Emulation, C++

169 points by fidotron 18 days ago | 12 comments

Shaman: Evaluate the numerical accuracy of a C++ application and locate sources (gitlab.com)
Evaluate the numerical accuracy of an application.

Software, C++, Programming, Numerical Analysis

3 points by fanf2 19 days ago | 0 comments

C++26: A Placeholder with No Name (sandordargo.com)
Let’s continue exploring C++26. In this post, we are going to discuss a core language feature proposed by Corentin Jabot and Micheal Park in P2169R4. With the new standard we get a cool unnamed placeholder.

C++, Programming Languages, Software Development

96 points by jandeboevrie 20 days ago | 168 comments

Swift for C++ Practitioners: Move Semantics (douggregor.net)
Since their introduction in C++11, move semantics have been an integral part of programming in C++. Move semantics are implemented in C++ with rvalue references, which express the idea that the entity they refer to is temporary in nature (an rvalue in programming language speak) and effectively won't be used again later.

C++, Programming Languages, Swift

28 points by ingve 22 days ago | 3 comments

Optimizing uint64_t Digit Counting: A Method that Beats Lemire's by up to 143% (github.com/RealTimeChris)

Optimization, Algorithms, Programming, Performance, C++

70 points by realtimechris 23 days ago | 28 comments

Parallel-hashmap: drop-in replacement for unordered_map, unordered_set (github.com/greg7mdp)
This repository aims to provide a set of excellent hash map implementations, as well as a btree alternative to std::map and std::set, with the following characteristics:

C++, Data Structures, Programming, Open Source, Libraries

62 points by klaussilveira 23 days ago | 19 comments

Expressive Vector Engine – SIMD in C++ (github.com/jfalcou)
EVE is a re-implementation of the old EVE SIMD library by Falcou et al. which for a while was named Boost.SIMD. It's a C++20 and onward implementation of a type based wrapper around SIMD extensions sets for most current architectures. It aims at showing how C++20 can be used to design and implement efficient, low level, high abstraction library suited for high performance.

C++, SIMD, Performance Optimization, Libraries, Open Source

76 points by klaussilveira 23 days ago | 36 comments

The existential threat against C++ – NDC TechTown 2024 [video] (youtube.com)

C++, Programming Languages, Conferences, Software Development, Tech Talks

5 points by ducaale 24 days ago | 0 comments

Size Optimization Tricks (2022) (justine.lol)
This blog post will cover some of the tricks I've used in the past to make c / c++ / python binaries smaller using x86 assembly.

Optimization, C++, Assembly, Programming

92 points by Narishma 24 days ago | 29 comments

Learning to Write Less Slow C, C++, and Assembly Code (github.com/ashvardanian)
Learning how to write "Less Slow" code in C++20, from numerical micro-kernels and SIMD to coroutines, ranges, and polymorphic state machines

Programming, C++, Optimization

15 points by asicsp 25 days ago | 0 comments

Agner Fog's Software Optimization Resources (agner.org)
This series of five manuals describes everything you need to know about optimizing code for x86 and x86-64 family microprocessors, including optimization advices for C++ and assembly language, details about the microarchitecture and instruction timings of most Intel, AMD and VIA processors, and details about different compilers and calling conventions.

Software Optimization, C++, Assembly Language, Microprocessors, Intel, AMD, VIA

4 points by davikr 26 days ago | 1 comments

Skipping Boring Functions in Debuggers (maskray.me)
In debuggers, stepping into a function with arguments that involve function calls may step into the nested function calls, even if they are simple and uninteresting, such as those found in the C++ STL.

Debugging, C++, Software Development

64 points by ingve 30 days ago | 5 comments

How DLang Improves My Modern C++ and Vice Versa [video] (youtube.com)

Programming Languages, C++, DLang, Software Development, Video

8 points by teleforce 30 days ago | 0 comments

Court is in session: Top most notorious C and C++ errors in 2024 (pvs-studio.com)
Every year, we witness the same drama: bugs wreak havoc on our code as if asserting their dominance. But today, the tide turns—it's time for judgment. Let's dive into the most intriguing bugs we've uncovered this year.

Programming, C++, Debugging, Software Development, Code Analysis

4 points by signa11 31 days ago | 1 comments

Not So Modern C++ (polymonster.co.uk)
There have been a lot of changes and additions to the c++ standard since I started using c++ in the early 2000’s, the language itself has started to look quite different. Yet I am still using a very stripped down subset of c++ actually more c-style and only reaching for c++ and modern c++ with careful consideration. Why is this?

C++, Programming Languages, Software Development

7 points by thunderbong 31 days ago | 0 comments

Simpler and faster parsing code with std:views:split (lemire.me)
Parsing text files is often confusing irrespective of your programming language. It can also be surprising slow.

Programming, Performance, Text Processing, C++

6 points by signa11 36 days ago | 0 comments

Symbolic Execution by Overloading __bool__ (philipzucker.com)
A few months ago I saw a talk on buildit, https://buildit.so/ a really neat project that achieves staged metaprogramming as a C++ library. I love the central tenets of being in a mainstream language and not requiring a modified compiler. Right on, brother. One thing I came away with was a neat trick for getting non-overloadable syntax to be overloadable.

Programming, C++, Metaprogramming

81 points by philzook 36 days ago | 10 comments

C++ is an absolute blast (learncodethehardway.com)
I want you to ask yourself an honest question. When was the last time you actually had fun in programming?

C++, Programming, Learning

311 points by ok123456 36 days ago | 368 comments

Ask HN: Are any other languages as big as C++? (ycombinator.com)
I've been relearning C++ over the last week and it seems absolutely massive. Do any other languages come close to its size?

Programming Languages, C++, Software Development

7 points by codingclaws 40 days ago | 10 comments

Binfuse: C++ library for binary fuse filters, including a sharded filter (github.com/oschonrock)
Binary fuse filters are a recent (2022) development in the group of Approximate Membership Query filters

C++, Libraries, Data Structures, Software, Filters

5 points by mpweiher 40 days ago | 0 comments

Botan: Crypto and TLS for Modern C++ (github.com/randombit)
Botan (Japanese for peony flower) is a C++ cryptography library released under the permissive Simplified BSD license.

Cryptography, C++, Libraries

98 points by klaussilveira 40 days ago | 55 comments

Show HN: Brisk – Cross-Platform C++ GUI Framework: Declarative, Reactive, Fast (github.com/brisklib)
Brisk is a modern, cross-platform C++ GUI framework designed to build responsive, high-performance applications with flexibility and ease.

C++, GUI Frameworks, Cross-Platform, Open Source, Software

84 points by danlcaza 41 days ago | 79 comments