Published: 2025-06-27 | Origin: /r/programming

The article discusses the importance of the C++ copy constructor, highlighting its role in value semantics, ownership logic, and the Rule of 3/5/0. It explains that the copy constructor is a special function used to create a new object as a copy of an existing one, emphasizing that this process produces independent objects rather than shared references, which is a fundamental aspect of C++. The piece further notes the complexities involved when copying objects that handle resources, as the default copy constructor performs a shallow

Published: 2025-06-27 | Origin: Hacker News

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Published: 2025-06-27 | Origin: Hacker News

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Published: 2025-06-27 | Origin: /r/programming

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Published: 2025-06-27 | Origin: Hacker News

The content highlights the importance of user feedback and offers a brief overview of the Compositional Differentiable Programming Library known as SymbolicAI. This neuro-symbolic framework integrates classical Python programming with the adaptable nature of large language models (LLMs) while maintaining a natural Python experience. It is designed to be modular, allowing easy customization and extensibility, including writing custom engines and interfacing with various tools. Key concepts of SymbolicAI include "primitives" and "contracts," with Symbol objects

Published: 2025-06-27 | Origin: /r/programming

The blog post discusses how to efficiently compute the Fibonacci sequence using GPU programming with NVIDIA's Thrust library. It focuses on the concept of the "scan" operation, which is fundamental for parallel algorithms. The author references a previous post on implementing scan in CUDA and explains exclusive scans using a default plus operator and a multiplication operator defined by a lambda function. Thrust's flexibility allows for matrix multiplication to be utilized in scans, specifically with a diagonal matrix for powers of 2. This lays the groundwork for

Published: 2025-06-27 | Origin: /r/programming

C23 introduces a new rule for compatibility among structs, unions, and enums across different translation units (TUs), which is now reflected in recent compiler releases, including GCC 15 and upcoming versions of Clang. Previously, each struct definition within a TU was treated as a distinct and incompatible type, but the new rule asserts that they are compatible if they share the same tag and fields. This change enables easier type parameterization through macros, allowing developers to define multiple struct versions without needing to write them

Published: 2025-06-27 | Origin: Hacker News

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Published: 2025-06-27 | Origin: /r/programming

The content discusses the opportunities and challenges in the software engineering profession, highlighting that it has become a highly sought-after and lucrative career over the past 10-15 years, similar to previous high-status jobs like lawyers and Wall Street traders. The author mentions Volv, a news app providing concise tech-related articles, and notes that as companies increasingly adopted software solutions, the demand for engineers surged, often leading to the hiring of less-experienced individuals. Despite this high demand, the author claims that

Published: 2025-06-27 | Origin: /r/ruby

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Published: 2025-06-27 | Origin: /r/programming

Mochi v0.10.5 introduces an efficient and expressive method for querying structured data, with support for various file types like JSON, YAML, and CSV. The new syntax, reminiscent of SQL and LINQ, allows for type-checked queries and the creation of typed collections from defined schemas. It's designed for use in ETL pipelines and data transformations, allowing users to filter and extract data using a readable and concise format. Additionally, users can sort data, manage pagination, and perform joins

Published: 2025-06-27 | Origin: /r/ruby

MRubyCS is a new mruby virtual machine implemented in C#. Initially named MRubyD, it focuses on seamless integration with C# game engines while ensuring high compatibility with Ruby-level APIs. Key features include: - **Implementation**: Built in pure C# to leverage modern language capabilities for high performance. - **Performance**: Utilizes C# features like managed pointers and .NET's GC and JIT compiler for efficiency. - **Ruby Compatibility**: All opcodes are implemented, passing

Published: 2025-06-27 | Origin: /r/programming

The author describes an incident where their ISP lost IPv4 connectivity after a power cut, while IPv6 was still functional but limited access to websites. Despite being able to connect to some services like Google and Meta, numerous other sites were inaccessible. The issue was identified as being related to Carrier Grade NAT (CG-NAT), impacting only IPv4 connections. After learning that a repair from the ISP might take several days, the author decided to utilize their Hetzner VPS, which has both IPv4 and

Published: 2025-06-27 | Origin: Hacker News

Since 2023, the author has served as a First Officer on the Airbus A350 with British Airways, previously flying the Airbus A320 family since 2016. They joined British Airways through a cadet scheme in 2014, completing an Integrated ATPL course in Spain after starting their aviation journey in Canada, where they earned a Glider Pilot License, Instructor Rating, and PPL. The author tracks their flight logs digitally with LogTen Pro, utilizing SQL for queries and creating infographics

Published: 2025-06-27 | Origin: /r/ruby

The content describes a Ruby gem named "msid," which generates a secure, unique fingerprint ID for a machine by collecting various hardware and software identifiers. This fingerprint is useful for licensing, device identification, or reliably identifying a specific machine. The gem combines system information into a SHA-256 hash to produce a unique ID. Users can install the gem via a Gemfile or directly and can enhance security by providing a salt for generating different IDs on the same machine. It is also compatible with Rails applications

Published: 2025-06-27 | Origin: /r/programming

The article discusses the concept of monads in programming, acknowledging that learners often find them challenging despite their simplicity and power. It highlights two common approaches to explaining monads, where the initial strong claim about their significance is often followed by a recognition of their complexity. The article aims to gradually build an understanding of monads, using Haskell for examples while ensuring the information presented is digestible in one read. It also addresses the question of why monads are necessary in functional programming, emphasizing that this programming

Published: 2025-06-27 | Origin: /r/programming

The content emphasizes the importance of user feedback and outlines steps for installing a C networking library called SwiftNet, which utilizes raw sockets. It encourages collaboration and clean coding practices, and mentions that the project is licensed under the Apache License 2.0. For questions or support, users can open an issue or contact the provided email. Additionally, there seems to be a loading error mentioned that advises reloading the page.

Published: 2025-06-27 | Origin: /r/programming

The article discusses the complexities of managing failures in microservice architectures, which are critical for scalable applications but introduce various failure points. It emphasizes that while microservices offer flexibility, they require strategies to mitigate failures. Key techniques include service isolation, where each microservice operates independently to prevent cascading failures, and statelessness, allowing any instance to manage requests without reliance on a specific server. Additionally, redundancy and data replication are highlighted as essential components for fault tolerance. The article concludes that organizations can implement these strategies

Published: 2025-06-27 | Origin: Hacker News

A new study from Stanford Medicine reveals that biological aging involves two significant periods of rapid change, typically around ages 44 and 60. Researchers analyzed thousands of molecules and the microbiomes of individuals aged 25 to 75 and found that changes in the abundance of these biological components occur dramatically rather than gradually. Key findings indicate that there are notable shifts in molecules associated with cardiovascular health and immune function during these critical periods of aging. The study, authored by Xiaotao Shen and led by Michael Snyder,

Published: 2025-06-27 | Origin: Hacker News

The author shares a nostalgic story from high school about a game they played in the Apple store at the mall. The objective was to reach the back wall of the store and exit without being approached by staff. The Apple store was seen as an interactive luxury experience, allowing teens to handle products freely, yet the staff were eager to assist. The game relied on luck and evading attention, as staff would engage with any customer. Success was rare, and the author recalls only winning a couple of times,