What's New in XCode 5 Part 3

What's New in XCode 5 Part 3

This is part 3 of the Series What's New in XCode 5. In Part 2 we had discussed what's new in

• Interface Design
• Compiler and Language
• Auto Vectorizer
• Parsing the Comments

XCode 5 is so fast and stable as the transition from GC to ARC has be completed with XCode 5... :) It has been 2 years since ARC has come into picture and has been great thing happen. Apple has announced that GC is deprecated technology and those developers who are using GC in Mac should switch to ARC and they will notice the change. Besides this enhancement there are still other features which we need to discuss..

XCode Debugger

Similar to Compiler XCode supported two different Debuggers "LLDB" and "GDB". Now with XCode 5 only LLDB debugger is available and gdb is gone. New features of debugger are:

What's New in XCode 5 Part 2

What's New in XCode 5 Part 2

In Part 1 of this series we had discussed about:

• Documentation
• Performance
• SourceControl
• Automatic Configuration

in XCode 5. Today we will discuss about more in features of XCode 5.

What's New in XCode 5 Part 1

What's New in XCode 5 Part 1

As we all know that iOS 7 has been the major release of iOS and it has brought us developers so many cool features. iOS 7 What's a new link to know more about it.

iOS 7 release brings the release of iOS 7 SDK and XCode 5, iOS 7 SDK and Xcode 5 download is available. Once you download and Installed XCode 5 you must be wondering now what's new in this... Right? That's what we are going to discuss in this very Blog.. and of course as IDE XCode do a lot of things and you know being a programmer it won't be easy to explain all the things in place. :) So I will be writing series of blogs to cover the features and this is the Beginning.. :) 

So What's New in XCode 5? Here are features:

TypeCasting objects in Objective C

Type Casting

Type Casting a process converting one type of object to another type of object. Every language a semantics of TypeCasting. Today we will discuss about type casting in Objective C.

E.g We have two class BaseClass and DerivedClass.

@interface BaseClass : NSObject

@property (nonatomic,strong) NSString *baseProperty;

-(void)baseMethod;

@end

Memory Management in Objective C

In this topic, we will discuss Reference Counting and some other memory management topics related to Objective C.

Reference Counting

Reference Counting is a technique of storing a number of reference to an Object at any given state. As soon as the reference count goes to the Zero object is released from the memory. It is important from the development point of view of application where memory is critical and to maintain responsiveness. It is the most simple algorithm for memory management. 

Objective C provides two methods of Memory Management

1. MRR - Manual Retain-Release: In this method, you explicitly keep track of the Objects you own. 
2. ARC - Automatic Reference Counting uses the same algorithm of MRR, However, while using ARC Compiler insert appropriate statements in your code at compile time.