Definition of "functor"; Haskell vs. C++

I'm trying to understand whether the Haskell and C++ communities mean different things by the word "functor", or if there's some underlying concept that unifies the two meanings. My

All C++20 core language features with examples

Introduction

Automatically Resuming a Job with Coroutines on a Separate Thread - ModernesCpp.com

Writing Linux File Buffer Cache top in C++ with BPF - Part II

Use BPF to Write Linux File Buffer Util

Building 64-bit Systems for Raspberry Pi 4 with Yocto

An introduction to swap space on Linux systems

There are two basic types of memory in a typical computer.

Extend the life of your SSD drive with fstrim

Over the past decade, solid-state drives (SSD) have brought about a new way of managing storage. SSDs have benefits like silent and cooler operation and a faster interface spec, compared to their elder spinning ancestors. Of course, new technology brings with it new methods of maintenance and management. SSDs have a feature called TRIM. This is essentially a method for reclaiming unused blocks on the device, which may have been previously written, but no longer contain valid data and therefore, can be returned to the general storage pool for reuse.

The Secret Life of C++: Symbol Mangling

A hands-on tutorial for using the GNU Project Debugger

If you're a programmer and you want to put a certain functionality in your software, you start by thinking of ways to implement it—such as writing a method, defining a class, or creating new data types. Then you write the implementation in a language that the compiler or interpreter can understand. But what if the compiler or interpreter does not understand the instructions as you had them in mind, even though you're sure you did everything right? What if the software works fine most of the time but causes bugs in certain circumstances?

C++20 Concepts Are Here in Visual Studio 2019 version 16.3 | C++ Team Blog

C++20 Concepts are now supported for the first time in Visual Studio 2019 version 16.3 Preview 2. This includes both the compiler and standard library support. First, we’re debuting the feature via /std:c++latest mode and once we have all C++20 features implemented across all Visual Studio products (compiler,