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I had written about std::optional<> in an earlier article. C++23 introduces std::expected<> as an interesting extension to std::optional<>. Whereas std::optional<> contains a value or none at all, std::expected<> contains a value or an error code associated with it. This gives better control to the caller in terms of handling the outcome of the function call. […]
The defer statement in Vlang causes code to be executed when the enclosing function returns. This feature is inspired by Golang, but is slightly more flexible since it allows any block of code to be associated with defer instead of just a function call. defer is used primarily to handle “clean up” logic, such as […]
The relatively new V Programming Language (Vlang) boasts of some interesting features such as “fast compilation” and runtime performance “as fast as C”, at the same time being a “simple language”. As I normally do with other languages that I learn and use, I decided to see how easy it is to build a shared […]
A few weeks ago I registered with OpenAI to access its services through API and created a secret Key for my use. I then decided to build a simple application to try out the “Chat” and “Completion” models. Since I have several tools at my disposal (RAD Studio, LispWorks, Allegro CommonLisp, Visual Studio, and Xojo), […]
One of the widely discussed features of Julia is its support for metaprogramming. This feature makes it possible to generate and inspect the code at runtime. In essence, metaprogramming blurs the distinction between code and data. When used carefully, it can contribute to good code. Of course, Julia is not the only or the first […]
Julia supports calling external functions, especially those written in “C” language. As Julia documentation says, such calls do not involve any “boilerplate” code and hence are efficient. In today’s article, I am going to show how to call functions defined in a DLL (Windows 64 bit). Instead of using direct “C” functions, I will discuss […]
We all know that ChatGPT has taken the world by storm. True, it is a major advance of Artificial Intelligence in the area of Natural Language Processing. Many may not know that WolframAlpha, launched in 2009, allowed natural language queries. As a long time user of Wolfram Mathematica, I was pleasantly surprised when the product […]
Title: Adventures in Rule-Based Programming – A CLIPS Tutorial Author: Gary Riley Publisher: Secret Society Software, LLC Year: 2022 In an earlier article, I had talked about the relevance of Rule-based systems today. In that article I had also listed a few Rule engines that are popular and widely used. One of them is CLIPS, […]
std::tuple is a widely used abstraction in C++ and has been around since C++11. It is a generalization of std::pair. std::tie is convenient when we want to create a tuple of lvalue references to existing variables. It is a function template commonly used to unpack a tuple into individual objects. In the above example, we […]
Before Machine Learning came into the mainstream, Rule-based systems were being used actively to solve complex decision making problems. In fact, Rule engines were considered to be an exotic component of Artificial Intelligence and the systems built using these rule engines were called Expert Systems. I still remember learning to use OPS5 a few decades […]
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