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C++ gives you several mechanisms for introducing names for types and related entities. At first glance, constructs such as typedef and using can look like little more than conveniences for shortening long type names:
typedef unsigned long long ull;
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Virtual machines and containers solve a similar problem: how can we run applications in isolated environments without letting them interfere with each other?
The major difference is what they virtualize.
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An architecture decision (AD) is a significant design choice about a software system’s architecture. An architecture decision record (ADR) is the document that captures that decision, its context, and why it was made.
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GitLab can feel confusing to a beginner because several different systems are presented through one interface.
A repository lives in GitLab. A pipeline is defined in GitLab. Jobs appear in GitLab. Logs appear in GitLab. Yet the commands in those jobs may actually execute on another computer, inside a virtual machine, a Docker container, or even a Kubernetes cluster.
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C++ has several different kinds of “names supplied by the implementation,” and they are easy to mix together. The clean taxonomy is:
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Software development relies on much more than source code alone. Behind almost every engineering organization is a collection of systems for tracking bugs, reviewing code, managing source repositories, planning work, running automated tests, deploying software, and coordinating releases.
Over the past three decades, the tools used for these jobs have changed considerably. Earlier software organizations commonly assembled their development infrastructure from specialized products: Bugzilla for defect tracking, Review Board or Gerrit for code review, CVS, Subversion, Perforce, or Git for source control, and Jenkins for automated builds and testing. Each system addressed a relatively well-defined part of the development lifecycle.
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The important caveat is that the answer has changed substantially over time.
In 2015–2018, “Neovim can do X, Vim can't” included asynchronous jobs, terminals, channels, etc. Modern Vim has acquired many analogous features. As of August 2026, with current Neovim 0.12 versus Vim 9.2, the genuinely important differences are mostly about architecture, APIs, Lua, Tree-sitter, LSP, UI extensibility, and the plugin ecosystem, rather than basic editing capability. (Neovim)
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A core dump is a snapshot of a process at or near the moment it crashes. In C and C++, it is one of the most useful artifacts for debugging failures that are hard to reproduce, especially segmentation faults, aborts, illegal instructions, assertion failures, memory corruption, and crashes that occur only in production.
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Programming languages can look very different on the surface, but underneath they are built from many of the same recurring concepts. C++ has templates and RAII, Java has interfaces and garbage collection, Rust has traits and ownership, Haskell has algebraic data types and type classes, Python has dynamic typing and comprehensions, and JavaScript has prototypes and promises. These features differ in syntax and implementation, but they often solve the same fundamental problems: how to represent data, organize code, control execution, manage memory, express abstraction, handle errors, and coordinate concurrent work.
This taxonomy is intended as a broad, language-independent map of that territory. It distinguishes the core language from the standard library, runtime