When you start implementing your own arithmetic algorithms you will sooner than later encounter overflow errors. Unlike arithmetic operators in C, arithmetic operator in Swift don’t overflow by default. Overflow behaviour is trapped and reported as an error. You have… Continue Reading
Closures are a powerful programming concept that enable many different programming patterns. However, for lots of beginning programmers, closures can be tricky to use and understand. This is especially true when closures are used in an asynchronous context. For example,… Continue Reading
The Swift Standard Library currently implements the three most essential general-purpose data structures: Array, Set and Dictionary. These are the right tool for a wide variety of use cases, and they are particularly well-suited for use as currency types. But sometimes, in order to… Continue Reading
Protocols with associated types are a powerful, if somewhat treacherous, feature of Swift. Sometimes it’s fair to say that the only winning move is not to play it. As an example here is a recursive protocol of binary tree node… Continue Reading
When developing financial apps you probably get the requirement to detect jailbroken devices. The reason for detection is to either disable some or most of the app’s functionalities due to security concerns that come from a jailbroken system. This article… Continue Reading
In Objective-C, there are three different varieties of nothing . The reason for this goes back to how Objective-C bridges the procedural paradigm of C with Smalltalk-inspired object-oriented paradigm. C represents nothing as 0 for primitive values, and NULL for… Continue Reading
Swift package manager provides a convention-based system for building libraries and executables, and sharing code across different projects. Before you can use it you should make it available on MacOS by installing Swift Open Source Toolchain. Install Package Manager Download the latest package release –… Continue Reading