Differences of Clang compilation between LLVM and the third-party OLLVM compiler and its impact on Bitcode

1, Concept introduction: LLVM and OLLVM LLVM is a complete compiler architecture, in which the front-end compiler uses clang. The code is compiled by LLVM: Among them, explain IR (also known as BitCode). LLVM compiler adds intermediary code to the traditional three-tier model. After the source code ...

Posted on Wed, 05 Feb 2020 04:51:51 -0800 by raahatazim

How do I print method names and line numbers and conditionally disable NSLog?

I'm doing a presentation on debugging in Xcode, and I want to get more information about using NSLog. In particular, I have two questions: Is there any way to easily NSLog the name / line number of the current method? Is there any way to "disable" all nslogs easily before compiling and publishing code? #1 building B ...

Posted on Sun, 26 Jan 2020 02:09:22 -0800 by peanutbutter

#iOS componentization route decoupling thought JLRoutes practice part in App controller jump

Preface The concepts of componentization and Router may have been relatively new a few years ago. So far, I believe that most students have been familiar with these terms. Before I really came into contact with Router and used it in the project, I also read some articles about the idea and framework of componentization and Router decoupling. H ...

Posted on Thu, 09 Jan 2020 00:43:29 -0800 by noober

OC project ignore file configuration

Introduction - main problems to be solved oc projects often ignore files; For files that have been added to version control, let gitignore take effect; An explanation of citing others to ignore documents 1. Ignore file content in OC project # Xcode # # gitignore contributors: remember to update Global/Xcode.gitignore, O ...

Posted on Sun, 22 Dec 2019 07:21:29 -0800 by ClanCC

Input and output in c + +

Input cin cin stands for buffer. Let's take a common example int main(){ char input[1024]; char c; cout << "input:" << endl; while (cin.peek() != '\n') { cin >> input; cout << input << endl; } } When the ">" operator reads data, it wil ...

Posted on Sat, 02 Nov 2019 23:48:59 -0700 by Froy

Swift, C and c mixed

     Last article Write the mixed calls of swift, C and C + +. I think you have basic skills for these simple calls. So let's see how to use C array in swift. For this array. For pointers, we can assign values directly and read them directly. For arrays, so can we. Let's see. How to read. Test envir ...

Posted on Wed, 23 Oct 2019 20:30:41 -0700 by rahulephp

Unity AR Foundation and CoreML: Implement hand detection and tracking

0x00 Preface Unity's AR Foundation Through the upper abstraction, the bottom interfaces of ARKit and ARCRore are encapsulated, thus enabling the cross-platform development capabilities of AR projects. Apple's CoreML is a framework for integrating machine learning models with app s on the iOS platform. This article, along with the demo projec ...

Posted on Wed, 24 Jul 2019 16:59:26 -0700 by julia k

Shocked, you may not know the new features of Swift 3.1

Apple recently released Xcode 8.3 and a small version of Swift 3.1. But don't worry, Swift 3.1 and Swift 3 are compatible, which won't cause too much trouble for your Swift 3 project. Unfortunately, Xcode 8.3 ruthlessly removes support for Swift 2.3, so if your project is using pre-3.0 versions, I recommend that you don't rush to update it. fai ...

Posted on Sun, 07 Jul 2019 17:17:56 -0700 by AngelG107

How Swift Creates Namespaces

Compared with OC era, Swift can achieve almost the same effect as namespace through ingenious methods. demand Now we want to add an extension to the UIColor class to generate the image UIImage based on its own color.In an era of no namespace, the result may be as follows: let image = UIColor.blue.image Or to avoid having the same name as other ...

Posted on Fri, 28 Jun 2019 16:04:58 -0700 by jdeer0618

Attribute keyword @property in Ios

Let's first introduce the definition of instance variables in Ios 1. Generally, instance variables are declared by {} in. h, which belongs to public and can be accessed by other classes. The declarations of setter and getter methods need to be defined. You can also use the @property keyword to associate and generate setter and getter declarati ...

Posted on Fri, 28 Jun 2019 12:59:29 -0700 by RottenBananas