Tag: C++

Using DLL Functions in Rust

Written by on May 4, 2022 in C++, Programming, Rust with 0 Comments
Using DLL Functions in Rust

When you program in Rust, especially in a non-trivial project, there is a good chance that you will need to call “external” functions (usually, C/C++) that are available in a DLL (we are talking about the Windows platform here). It could be because you wish to re-use some code that you have earlier written in […]

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Rust Trait vs. C++ Abstract Class

Written by on April 3, 2022 in C++, Programming, Rust with 0 Comments
Rust Trait vs. C++ Abstract Class

Traits in Rust are an amazing feature and contribute significantly to the expressive power of the language. For someone coming to Rust with a C++ background (like me), Traits appear to be quite similar to Abstract Classes in C++. Although they are similar, Traits have certain characteristics that set them apart. In this article, I […]

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First Encounter with the Ring Programming Language

Written by on August 7, 2021 in C++, Programming, Ring Language with 0 Comments
First Encounter with the Ring Programming Language

The Ring Programming Language, designed by Mahmoud Fayed,  has been around since 2016. I came to know of it quite accidentally two weeks ago when I received a promotional email from Apress about their book “Beginning Ring Programming” by Mansour Ayouni, published in 2020. I immediately did a google search about the language and finding […]

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Implementing iLexicon using LiteDB

Written by on March 28, 2021 in Natural Language Processing, Programming, Prolog with 0 Comments
Implementing iLexicon using LiteDB

iLexicon is an “intelligent” dictionary that can be used to build Natural Language applications. I have two implementations, one in Lisp and another in Prolog. Both implementations are memory-based, in order to speed up performance. I have written several articles referencing it, for example see this.   LiteDB is a NoSQL database for .NET. I […]

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Calling C# Methods from LispWorks Lisp – Part 2

Written by on March 14, 2021 in LISP, Programming with 0 Comments
Calling C# Methods from LispWorks Lisp – Part 2

In the last article, I showed how we can invoke C# methods from LispWorks Enterprise Edition, through the COM/Automation interface. That approach relied on invoking the Automation methods dynamically, without depending on the Type library (*.tlb).  In this article, I will discuss the other approach, which uses the Type library. According to LispWorks documentation, this […]

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LiteDB: A NoSQL Database for .NET

Written by on February 14, 2021 in Programming with 0 Comments
LiteDB: A NoSQL Database for .NET

I have been looking around for a compact embedded NoSQL database library for .NET, to use as the back-end of my “iLexicon” system. “iLexicon” is written in Lisp and Prolog (I have written a few articles on it before). At present, the entire dictionary component (containing over 300,000 word entries) is resident in memory, and the […]

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C++20 [[nodiscard]] Attribute

Written by on January 17, 2021 in C++, Programming with 0 Comments
C++20 [[nodiscard]] Attribute

[[nodiscard]] attribute “encourages” the compiler to issue a warning when the return value from a function is ignored. It was introduced in C++ 17 and enhanced in C++ 20 to include a string literal that can be used as an explanation of the warning. Let us look at different cases one by one. Case-1: An enumeration […]

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std::is_standard_layout<>

Written by on June 21, 2020 in C++, Programming with 0 Comments
std::is_standard_layout<>

In our last post, we learnt about the type trait std::is_trivial<T>. Today, let us go through another type trait that is quite similar. The expression is_standard_layout<T>::value returns true if the layout of objects of type T is compiler independent, and hence is of standard format. Else, it returns false. This is important if we create objects […]

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std::is_trivial<>

Written by on June 6, 2020 in C++, Programming with 0 Comments
std::is_trivial<>

Today let us try to understand the type trait std::is_trivial<T>. This trait checks if the given type is a trivial type. For a precise definition of what trivial means, please visit the official page. As usual, we will go through three cases: – Primitive types – Classes without inheritance – Classes involving inheritance Case-1: Primitive […]

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std::is_convertible<>

Written by on May 24, 2020 in C++, Programming with 0 Comments
std::is_convertible<>

The type trait is_convertible<From, To> checks if an object of type From can be “implicitly” converted to an object of type To. The expression is_convertible<From, To>::value returns true if implicit conversion is possible, else it returns false. For more details, please check out the reference. Let us look at three primary cases. Case-1: Pre-defined Types […]

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