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Swift Cookbook

You're reading from   Swift Cookbook Over 50 hands-on recipes to help you create apps, solve problems, and build your portfolio of projects in Swift

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Product type Paperback
Published in Apr 2015
Publisher
ISBN-13 9781784391379
Length 392 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (13) Chapters Close

Preface 1. Getting Started with Xcode and Swift FREE CHAPTER 2. Standard Library and Collections 3. Using Structs and Generics 4. Design Patterns with Swift 5. Multitasking 6. Playground 7. Swift Debugging with Xcode 8. Integrating with Objective-C 9. Dealing with Other Languages 10. Data Access 11. Miscellaneous Index

Debugging with LLDB


Debugging with Xcode is fine, but sometimes we are limited, and we have to use the debugger with a lower level. To do this, we have to know that actually Xcode is not debugging anything, it uses another program called LLDB.

Note

Old versions of Xcode are used to debug with GDB instead of LLDB; don't try to use them with Swift because there is no support for Swift on GDB.

It's recommended that you know the LLDB commands if you want to debug big programs. These are also used in cases where you have to connect with another machine (a continuous integration, for example), where you have to do everything through an SSH shell.

Getting ready

Open the checkerboard program and check whether you have any breakpoint and remove all of them.

How to do it...

Debugging with LLDB will involve the following steps:

  1. Click on play and when the program starts, click on the pause button; use the combination control + command + U. After this, you will see the LLDB console:

  2. Now, click on the LLDB console...

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