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Google Keyword Rankings for : what is the difference between copy and retain in objective c
1
What is the difference between copy and retain? - Quora
https://www.quora.com/What-is-the-difference-between-copy-and-retain
Retain increases the retain count of an object by 1 and takes ownership of an object. Whereas copy will copy the data present in the memory location and ...
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https://www.quora.com/What-is-the-difference-between-copy-and-retain
Retain increases the retain count of an object by 1 and takes ownership of an object. Whereas copy will copy the data present in the memory location and ...
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2
Difference- Copy vs assign vs retain - MindStick
https://www.mindstick.com/interview/22855/difference-copy-vs-assign-vs-retain
Assign is for primitive values like BOOL, NSInteger or double. For objects use retain or copy, depending on if you want to keep a reference to ...
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https://www.mindstick.com/interview/22855/difference-copy-vs-assign-vs-retain
Assign is for primitive values like BOOL, NSInteger or double. For objects use retain or copy, depending on if you want to keep a reference to ...
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3
atomic nonatomic retain assign copy | by Abhishek Kumar
https://medium.com/@abhishek1nacc/atomic-nonatomic-retain-assign-copy-582b79d31568
increases the retain count of an object by 1. Takes ownership of an object. copy : Makes a copy of an object, and returns it with retain count of 1. If you copy ...
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https://medium.com/@abhishek1nacc/atomic-nonatomic-retain-assign-copy-582b79d31568
increases the retain count of an object by 1. Takes ownership of an object. copy : Makes a copy of an object, and returns it with retain count of 1. If you copy ...
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4
Assign, retain, copy: pitfalls in Obj-C property accessors
https://www.cocoawithlove.com/2010/06/assign-retain-copy-pitfalls-in-obj-c.html
› 2010/06 › assign-reta...
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https://www.cocoawithlove.com/2010/06/assign-retain-copy-pitfalls-in-obj-c.html
› 2010/06 › assign-reta...
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5
Objective-c – the difference between “copy” and “retain”
https://itecnote.com/tecnote/r-the-difference-between-copy-and-retain/
In a general setting, retaining an object will increase its retain count by one. This will help keep the object in memory and prevent it from being blown ...
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https://itecnote.com/tecnote/r-the-difference-between-copy-and-retain/
In a general setting, retaining an object will increase its retain count by one. This will help keep the object in memory and prevent it from being blown ...
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6
The difference between Nonatomic,assign,copy,retain in objective-c
https://topic.alibabacloud.com/a/the-difference-between-nonatomicassigncopyretain-in-objective-c_1_33_31556312.html
The difference between Nonatomic,assign,copy,retain in objective-c. Last Update:2015-01-07 Source: Internet. Author: User. Developer on Alibaba Coud: Build ...
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https://topic.alibabacloud.com/a/the-difference-between-nonatomicassigncopyretain-in-objective-c_1_33_31556312.html
The difference between Nonatomic,assign,copy,retain in objective-c. Last Update:2015-01-07 Source: Internet. Author: User. Developer on Alibaba Coud: Build ...
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7
iOS : Objective C - Assign, Copy, Retain - YouTube
https://www.youtube.com/watch?v=Doinfw289Ig
Knowledge Base
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https://www.youtube.com/watch?v=Doinfw289Ig
Knowledge Base
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8
Memory Management Flashcards | Quizlet
https://quizlet.com/86593824/memory-management-flash-cards/
Difference between shallow copy and deep copy? ... - Shallow copy is also known as a address copy. In this process you only copy address not actual data while in ...
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https://quizlet.com/86593824/memory-management-flash-cards/
Difference between shallow copy and deep copy? ... - Shallow copy is also known as a address copy. In this process you only copy address not actual data while in ...
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9
Atomic, Non Atomic || Copy and Retain - IOS Development
https://aruniphoneapplication.blogspot.com/2017/01/atomic-non-atomic-copy-and-retain.html
This means the instance of the object will be kept in memory until it's retain count drops to zero. The property will store a reference to this ...
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https://aruniphoneapplication.blogspot.com/2017/01/atomic-non-atomic-copy-and-retain.html
This means the instance of the object will be kept in memory until it's retain count drops to zero. The property will store a reference to this ...
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10
[Fixed]-What is the difference between alloc, retain and copy ...
https://www.appsloveworld.com/objective-c/100/60/what-is-the-difference-between-alloc-retain-and-copy
[Fixed]-What is the difference between alloc, retain and copy-objective-c ... Separate means it is a different object with retain count 1. For example,
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https://www.appsloveworld.com/objective-c/100/60/what-is-the-difference-between-alloc-retain-and-copy
[Fixed]-What is the difference between alloc, retain and copy-objective-c ... Separate means it is a different object with retain count 1. For example,
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11
Deep copy vs. shallow copy — and how you can use them in ...
https://www.freecodecamp.org/news/deep-copy-vs-shallow-copy-and-how-you-can-use-them-in-swift-c623833f5ad3/
Copying an object has always been an essential part in the coding paradigm. Be it in Swift, Objective-C, JAVA or any other language, ...
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https://www.freecodecamp.org/news/deep-copy-vs-shallow-copy-and-how-you-can-use-them-in-swift-c623833f5ad3/
Copying an object has always been an essential part in the coding paradigm. Be it in Swift, Objective-C, JAVA or any other language, ...
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12
iOS : @property retain, assign, copy, nonatomic in Objective-C
https://www.youtube.com/watch?v=Qb8EEeVvqT8
Knowledge Base
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https://www.youtube.com/watch?v=Qb8EEeVvqT8
Knowledge Base
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13
Obj-C Memory Management - Tutorialspoint
https://www.tutorialspoint.com/objective_c/objective_c_memory_management.htm
The copied object is released by Class C using the release method and the retain count becomes 0 and hence the object is destroyed. In case of the initial Class ...
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https://www.tutorialspoint.com/objective_c/objective_c_memory_management.htm
The copied object is released by Class C using the release method and the retain count becomes 0 and hence the object is destroyed. In case of the initial Class ...
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14
Value Objects - objc.io
https://www.objc.io/issue-7/value-objects.html
Be aware that the copy is shallow; the containers might still contain mutable objects. For example, if you have an NSMutableArray* a containing ...
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https://www.objc.io/issue-7/value-objects.html
Be aware that the copy is shallow; the containers might still contain mutable objects. For example, if you have an NSMutableArray* a containing ...
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15
Joe Groff on Twitter: "@drewmccormack @helje5 Retain ...
https://twitter.com/jckarter/status/1091479420890542080
Is there not a risk of a race condition between checking that the object is ... The difference from an ObjC object would be that two threads can both copy ...
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https://twitter.com/jckarter/status/1091479420890542080
Is there not a risk of a race condition between checking that the object is ... The difference from an ObjC object would be that two threads can both copy ...
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16
Object.assign() - JavaScript - MDN Web Docs
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
Properties in the target object are overwritten by properties in the sources if they have the same key. Later sources' properties overwrite ...
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
Properties in the target object are overwritten by properties in the sources if they have the same key. Later sources' properties overwrite ...
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17
Objective-C Automatic Reference Counting (ARC)
https://releases.llvm.org/10.0.0/tools/clang/docs/AutomaticReferenceCounting.html
Methods in the alloc , copy , mutableCopy , and new families — that is, methods in all the currently-defined families except init — implicitly return a retained ...
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https://releases.llvm.org/10.0.0/tools/clang/docs/AutomaticReferenceCounting.html
Methods in the alloc , copy , mutableCopy , and new families — that is, methods in all the currently-defined families except init — implicitly return a retained ...
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18
Objective-C Flashcards | Chegg.com
https://www.chegg.com/flashcards/objective-c-95dc1c71-cbf4-452e-ba04-5c0921a73729/deck
What is the difference between underscore and self? ... Instead of taking ownership of the existing object, it creates a copy of whatever you assign to the ...
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https://www.chegg.com/flashcards/objective-c-95dc1c71-cbf4-452e-ba04-5c0921a73729/deck
What is the difference between underscore and self? ... Instead of taking ownership of the existing object, it creates a copy of whatever you assign to the ...
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19
Memory Management - Ry's Objective-C Tutorial - RyPress
https://fullonrager.github.io/rys-objective-c-tutorial-archive/memory-management.html
An alternative to retain is the copy method, which creates a brand new instance of the object and increments the reference count on that, leaving the original ...
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https://fullonrager.github.io/rys-objective-c-tutorial-archive/memory-management.html
An alternative to retain is the copy method, which creates a brand new instance of the object and increments the reference count on that, leaving the original ...
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20
Difference between retain & assign - C# Corner
https://www.c-sharpcorner.com/blogs/difference-between-retain-assign1
Difference between retain & assign ... Assign creates a reference from one object to another without increasing the source's retain count.
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https://www.c-sharpcorner.com/blogs/difference-between-retain-assign1
Difference between retain & assign ... Assign creates a reference from one object to another without increasing the source's retain count.
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21
Object copying - Apple Developer
https://developer.apple.com/library/archive/documentation/General/Conceptual/DevPedia-CocoaCore/ObjectCopying.html
A collection of short articles on the core concepts, patterns, and mechanisms in Cocoa programming.
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https://developer.apple.com/library/archive/documentation/General/Conceptual/DevPedia-CocoaCore/ObjectCopying.html
A collection of short articles on the core concepts, patterns, and mechanisms in Cocoa programming.
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22
copy vs. retain example using NSString/NSMutableString
https://undercovertechguy.wordpress.com/2014/06/16/copy-vs-retain-example-using-nsstringnsmutablestring/
As part of my new ventures into Objective-C I was looking at the difference between copy and retain for properties. In the process I wrote a ...
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https://undercovertechguy.wordpress.com/2014/06/16/copy-vs-retain-example-using-nsstringnsmutablestring/
As part of my new ventures into Objective-C I was looking at the difference between copy and retain for properties. In the process I wrote a ...
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23
"Weak, Strong, Unowned, Oh My!" - A Guide to References in ...
https://krakendev.io/blog/weak-and-unowned-references-in-swift
While strong references increase the retain count of an object by 1, weak references do not. In addition, weak references zero out the ...
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https://krakendev.io/blog/weak-and-unowned-references-in-swift
While strong references increase the retain count of an object by 1, weak references do not. In addition, weak references zero out the ...
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24
copy vs strong (retain) - Sash Zats
http://blog.zats.io/2015/08/27/copy-vs-retain/
or in Swift when using with Objective-C: @NSCopying var name: String. If type of a property has a mutable counterpart, you must use copy ...
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http://blog.zats.io/2015/08/27/copy-vs-retain/
or in Swift when using with Objective-C: @NSCopying var name: String. If type of a property has a mutable counterpart, you must use copy ...
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25
Intro to Objective-C: Instances - iPhone Development 101
http://www.idev101.com/learn/objective_c_instances.html
Objective-C uses retain counts to keep track of the number of pointers to an object. When you alloc an object and assign it to an instance variable, the ...
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http://www.idev101.com/learn/objective_c_instances.html
Objective-C uses retain counts to keep track of the number of pointers to an object. When you alloc an object and assign it to an instance variable, the ...
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26
[Solved] Explain briefly about strong ,weak ,copy, assign retain ...
https://www.codeproject.com/Questions/595401/Explainplusbrieflyplusplusaboutplusstrongplus-2cwe
Hi, Have a look here: http://stackoverflow.com/questions/8927727/objective-c-arc-strong-vs-retain-and-weak-vs-assign[^] http://stackoverflow.com/questions/45 ...
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https://www.codeproject.com/Questions/595401/Explainplusbrieflyplusplusaboutplusstrongplus-2cwe
Hi, Have a look here: http://stackoverflow.com/questions/8927727/objective-c-arc-strong-vs-retain-and-weak-vs-assign[^] http://stackoverflow.com/questions/45 ...
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27
Retain count imbalanced when calling ObjC synthesized ...
https://github.com/llvm/llvm-project/issues/56680
In 2018 Apple announced support for ARC object pointers in C structures in LLVM. On clang 13, we have observed that when such a struct is ...
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https://github.com/llvm/llvm-project/issues/56680
In 2018 Apple announced support for ARC object pointers in C structures in LLVM. On clang 13, we have observed that when such a struct is ...
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28
Chapter 9. Memory management - Objective-C Fundamentals
https://livebook.manning.com/book/objective-c-fundamentals/chapter-9/
The difference between Objective-C and languages such as Java is that this support isn't automatic. You must adjust the count yourself as parts of your ...
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https://livebook.manning.com/book/objective-c-fundamentals/chapter-9/
The difference between Objective-C and languages such as Java is that this support isn't automatic. You must adjust the count yourself as parts of your ...
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29
Property Attributes in Objective-C - Coding Explorer Blog
https://www.codingexplorer.com/property-attributes-in-objective-c/
It is similar to strong, but instead of increasing the retain count and claiming ownership of an object, it copies the value of the object that ...
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https://www.codingexplorer.com/property-attributes-in-objective-c/
It is similar to strong, but instead of increasing the retain count and claiming ownership of an object, it copies the value of the object that ...
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30
27 Objective-C Interview Questions (ANSWERED) Every iOS ...
https://www.fullstack.cafe/blog/objective-c-interview-questions
In a general setting, retaining an object will increase its retain count by one. This will help keep the object in memory and prevent it from being blown away.
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https://www.fullstack.cafe/blog/objective-c-interview-questions
In a general setting, retaining an object will increase its retain count by one. This will help keep the object in memory and prevent it from being blown away.
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31
LearningObjectiveC - HerzbubeWiki
https://wiki.herzbube.ch/index.php/LearningObjectiveC
An example for this is the chapter "Implementing Object Copy", ... ObjC allows the programmer to declare a set of methods, unattached to a ...
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https://wiki.herzbube.ch/index.php/LearningObjectiveC
An example for this is the chapter "Implementing Object Copy", ... ObjC allows the programmer to declare a set of methods, unattached to a ...
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32
Memory Managment - iOS | Codementor
https://www.codementor.io/@fazeelakhter/memory-managment-ios-kuasefilv
Memory Management iOS. ... Now, nonatomic specifies how different processes in a ... copy makes a copy of the object to be referenced.
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https://www.codementor.io/@fazeelakhter/memory-managment-ios-kuasefilv
Memory Management iOS. ... Now, nonatomic specifies how different processes in a ... copy makes a copy of the object to be referenced.
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33
An In-depth Look At Manual Memory Management In ...
https://www.tomdalling.com/blog/cocoa/an-in-depth-look-at-manual-memory-management-in-objective-c/
This article is intended for people who are new to Objective-C, ... This property should be `copy` or `retain` @property(assign) NSImage* ...
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https://www.tomdalling.com/blog/cocoa/an-in-depth-look-at-manual-memory-management-in-objective-c/
This article is intended for people who are new to Objective-C, ... This property should be `copy` or `retain` @property(assign) NSImage* ...
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34
TMI #1: Objective-C Property Attributes - Realm Academy
https://academy.realm.io/posts/tmi-objective-c-property-attributes/
If you set a copy property, instead of just setting both references to the same object, what it actually does is it makes a copy of the object ...
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https://academy.realm.io/posts/tmi-objective-c-property-attributes/
If you set a copy property, instead of just setting both references to the same object, what it actually does is it makes a copy of the object ...
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35
CopyObject - Amazon Simple Storage Service
https://docs.aws.amazon.com/AmazonS3/latest/API/API_CopyObject.html
Creates a copy of an object that is already stored in Amazon S3. ... keys (SSE-S3), AWS KMS keys (SSE-KMS) or a customer-provided encryption key (SSE-C).
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https://docs.aws.amazon.com/AmazonS3/latest/API/API_CopyObject.html
Creates a copy of an object that is already stored in Amazon S3. ... keys (SSE-S3), AWS KMS keys (SSE-KMS) or a customer-provided encryption key (SSE-C).
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36
From C++ to Objective-C - Page personnelle de Pierre Chatelier
https://pierre.chachatelier.fr/programmation/fichiers/cpp-objc-en.pdf
This document is designed to act as a bridge between C++ and Objective-C. ... on page 24) and getter, setter, readwrite, readonly, assign, retain, copy,.
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https://pierre.chachatelier.fr/programmation/fichiers/cpp-objc-en.pdf
This document is designed to act as a bridge between C++ and Objective-C. ... on page 24) and getter, setter, readwrite, readonly, assign, retain, copy,.
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37
Chapter 12. Accessors and Memory Management - apeth.com
https://www.apeth.com/iOSBook/ch12.html
(Indeed, this is so generally true that if a Cocoa object is not going to retain an object you hand it, there will be a note to that effect in the documentation ...
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https://www.apeth.com/iOSBook/ch12.html
(Indeed, this is so generally true that if a Cocoa object is not going to retain an object you hand it, there will be a note to that effect in the documentation ...
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38
CS193E Lecture #3
https://web.stanford.edu/class/cs193e/Downloads/03-MemoryManagement.pdf
Objective-C supports single inheritance ... Different -init methods for same class ... Balance every alloc/copy/retain with a release.
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https://web.stanford.edu/class/cs193e/Downloads/03-MemoryManagement.pdf
Objective-C supports single inheritance ... Different -init methods for same class ... Balance every alloc/copy/retain with a release.
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39
Objective C Blocks: Summary, Syntax & Best Practices - amattn
http://amattn.com/p/objective_c_blocks_summary_syntax_best_practices.html
The reason is that someBlock is strongly held by self and the block will “capture” and retain self when/if the block is copied to the heap. The ...
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http://amattn.com/p/objective_c_blocks_summary_syntax_best_practices.html
The reason is that someBlock is strongly held by self and the block will “capture” and retain self when/if the block is copied to the heap. The ...
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40
NSObject.RetainCount Property (Foundation) - Microsoft Learn
https://learn.microsoft.com/en-us/dotnet/api/foundation.nsobject.retaincount?view=xamarin-mac-sdk-14
Definition; Remarks; Applies to. Returns the current Objective-C retain count for the object. C# Copy. public virtual nuint RetainCount { [Foundation.
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https://learn.microsoft.com/en-us/dotnet/api/foundation.nsobject.retaincount?view=xamarin-mac-sdk-14
Definition; Remarks; Applies to. Returns the current Objective-C retain count for the object. C# Copy. public virtual nuint RetainCount { [Foundation.
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41
What Is the Difference Between Strong, Weak, and Unowned ...
https://cocoacasts.com/what-is-the-difference-between-strong-weak-and-unowned-references
ARC keeps track of the number of strong references to a class instance. This is also known as the retain count of a class instance. The class instance cannot be ...
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https://cocoacasts.com/what-is-the-difference-between-strong-weak-and-unowned-references
ARC keeps track of the number of strong references to a class instance. This is also known as the retain count of a class instance. The class instance cannot be ...
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42
Memory Management with ARC
https://fuller.li/posts/memory-management-arc/
The Objective-C run-time has a completely new interface for using many of the old ... as retain cycles, the dealloc problem and copy vs strong with blocks.
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https://fuller.li/posts/memory-management-arc/
The Objective-C run-time has a completely new interface for using many of the old ... as retain cycles, the dealloc problem and copy vs strong with blocks.
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43
Automatic Reference Counting - Wikipedia
https://en.wikipedia.org/wiki/Automatic_Reference_Counting
At compile time, it inserts into the object code messages retain and release which increase and decrease the reference count at run time, marking for ...
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https://en.wikipedia.org/wiki/Automatic_Reference_Counting
At compile time, it inserts into the object code messages retain and release which increase and decrease the reference count at run time, marking for ...
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44
property retain, assign, copy, nonatomic in Objective-C
https://www.lokasi.live/soal-https-stackoverflow.com/q/2255861
"copy" is needed when the object is mutable. Use this if you need the value of the object as it is at this moment, and you don't want that value to reflect any ...
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https://www.lokasi.live/soal-https-stackoverflow.com/q/2255861
"copy" is needed when the object is mutable. Use this if you need the value of the object as it is at this moment, and you don't want that value to reflect any ...
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45
iOS Basic Questions
https://liyao13.wordpress.com/2015/11/02/ios-basic-questions/
Some basic questions to help understand Objective C better: Explain method swizzling. ... What are the differences between copy and retain ?
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https://liyao13.wordpress.com/2015/11/02/ios-basic-questions/
Some basic questions to help understand Objective C better: Explain method swizzling. ... What are the differences between copy and retain ?
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46
Retain Cycles and Memory Management in Swift | by İsmail GÖK
https://betterprogramming.pub/retain-cycles-and-memory-management-in-swift-fb6226165b17
The change on one of them wouldn't affect the other one because the original value was copied to the other instance and the copied value is ...
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https://betterprogramming.pub/retain-cycles-and-memory-management-in-swift-fb6226165b17
The change on one of them wouldn't affect the other one because the original value was copied to the other instance and the copied value is ...
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47
Chapter 3: Memory Management in Cocoa - Matt Patenaude
https://mattpatenaude.com/ch3-memory-management.html
Bear in mind that all methods that do not explicitly contain alloc or copy (or retain , obviously) in their names return objects with a final potential net ...
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https://mattpatenaude.com/ch3-memory-management.html
Bear in mind that all methods that do not explicitly contain alloc or copy (or retain , obviously) in their names return objects with a final potential net ...
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48
Chapter 4. Coding in Objective-C - O'Reilly
https://www.oreilly.com/library/view/learning-ios-programming/9781449325749/ch04.html
As is the case in almost all other object-oriented languages, in Objective-C, classes provide the building blocks to allow encapsulation of data and methods ...
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https://www.oreilly.com/library/view/learning-ios-programming/9781449325749/ch04.html
As is the case in almost all other object-oriented languages, in Objective-C, classes provide the building blocks to allow encapsulation of data and methods ...
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49
Interview Questions – Objective C - Learn Programming Online
https://iosdose.com/interview-questions-objective-c/
Objective-C uses + and – to differentiate between class method (known as ... If you alloc, retain, or copy/mutablecopy it, it's your job to ...
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https://iosdose.com/interview-questions-objective-c/
Objective-C uses + and – to differentiate between class method (known as ... If you alloc, retain, or copy/mutablecopy it, it's your job to ...
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50
Objective-C - Jorge Israel Peña
https://jip.dev/notes/objective-c/
The superclass that a class inherits from is specified in the @interface line and it doesn't need to be repeated in the @implementation line. A method is ...
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https://jip.dev/notes/objective-c/
The superclass that a class inherits from is specified in the @interface line and it doesn't need to be repeated in the @implementation line. A method is ...
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51
Difference Between Shallow copy VS Deep copy in Pandas ...
https://www.geeksforgeeks.org/difference-between-shallow-copy-vs-deep-copy-in-pandas-dataframes/
It refers to constructing a new collection object and then populating it with references to the child objects found in the original. The copying ...
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https://www.geeksforgeeks.org/difference-between-shallow-copy-vs-deep-copy-in-pandas-dataframes/
It refers to constructing a new collection object and then populating it with references to the child objects found in the original. The copying ...
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52
Objective-C for Experienced Programmers - Agile Developer
https://agiledeveloper.com/presentations/objective_c_for_experienced_programmers.pdf
NS stands for NeXtStep, creator of Objective-C ... assign, retain, copy (default is assign, retain will ... something different from what you asked for.
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https://agiledeveloper.com/presentations/objective_c_for_experienced_programmers.pdf
NS stands for NeXtStep, creator of Objective-C ... assign, retain, copy (default is assign, retain will ... something different from what you asked for.
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53
CR 706. Copying Objects - Rules Resources
https://blogs.magicjudges.org/rules/cr706/
706.2b Once an object has been copied, changing the copiable values of the original object won't cause the copy to change,; 706.2c If a static ability generates ...
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https://blogs.magicjudges.org/rules/cr706/
706.2b Once an object has been copied, changing the copiable values of the original object won't cause the copy to change,; 706.2c If a static ability generates ...
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54
How to copy objects in Swift using copy() - Hacking with Swift
https://www.hackingwithswift.com/example-code/system/how-to-copy-objects-in-swift-using-copy
Well, one of the key areas is down to copying: two variables can point at the same object so that changing one changes them both, ...
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https://www.hackingwithswift.com/example-code/system/how-to-copy-objects-in-swift-using-copy
Well, one of the key areas is down to copying: two variables can point at the same object so that changing one changes them both, ...
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55
Objective-C blocks caveat - Alberto De Bortoli
https://albertodebortoli.com/2013/08/03/objective-c-blocks-caveat/
There is no retain cycle and no matter if the block is retained or not by a property. If the block is passed around and copied by others, when ...
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https://albertodebortoli.com/2013/08/03/objective-c-blocks-caveat/
There is no retain cycle and no matter if the block is retained or not by a property. If the block is passed around and copied by others, when ...
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56
Simple Memory Management | Objective-C Boot Camp | InformIT
https://www.informit.com/articles/article.aspx?p=1765122&seqNum=7
copy returns an object with a retain count of +1 and no assignment to the autorelease pool. Use copy when you want to duplicate and make changes ...
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https://www.informit.com/articles/article.aspx?p=1765122&seqNum=7
copy returns an object with a retain count of +1 and no assignment to the autorelease pool. Use copy when you want to duplicate and make changes ...
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57
alloc, init, new, retain, release - Koala's Archive - Google Sites
https://sites.google.com/site/koalalearn/sp2011/cs212/allocinitnewretainrelease
To basicaly introduce it: when an object is allocated, it's counting ... What's the difference between alloc , init , new , copy ?
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https://sites.google.com/site/koalalearn/sp2011/cs212/allocinitnewretainrelease
To basicaly introduce it: when an object is allocated, it's counting ... What's the difference between alloc , init , new , copy ?
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58
Objective C - Assign, Copy, Retain - 简书
https://www.jianshu.com/p/a64809bba109
What is the difference between strong, retain, nonatomic, etc., in the Objective-C (iOS) property? 2人点赞. IOS, OC, C. 更多精彩内容，就在简书APP.
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https://www.jianshu.com/p/a64809bba109
What is the difference between strong, retain, nonatomic, etc., in the Objective-C (iOS) property? 2人点赞. IOS, OC, C. 更多精彩内容，就在简书APP.
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59
Objective-C Mapping for Structures - Ice
https://doc.zeroc.com/ice/3.6/language-mappings/objective-c-mapping/client-side-slice-to-objective-c-mapping/objective-c-mapping-for-structures
The Slice-to-Objective-C compiler generates the following definition for ... are copied by assigning instance variables of value type and calling retain on ...
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https://doc.zeroc.com/ice/3.6/language-mappings/objective-c-mapping/client-side-slice-to-objective-c-mapping/objective-c-mapping-for-structures
The Slice-to-Objective-C compiler generates the following definition for ... are copied by assigning instance variables of value type and calling retain on ...
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60
Inspecting Objective-C Properties - ko(9)
https://ko9.org/posts/inspecting-objective-c-properties
It will return a pointer to the first item in an array of objc_property_t . Since the method name contains “copy”, we're taking ownership of the array and need ...
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https://ko9.org/posts/inspecting-objective-c-properties
It will return a pointer to the first item in an array of objc_property_t . Since the method name contains “copy”, we're taking ownership of the array and need ...
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61
Constant Strings in Objective-C - bou.io
https://bou.io/ConstantStringsInObjC.html
Constant strings are of the special subclass __NSCFConstantString and have a retain count of “-1” which means “infinite retain count”. These ...
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https://bou.io/ConstantStringsInObjC.html
Constant strings are of the special subclass __NSCFConstantString and have a retain count of “-1” which means “infinite retain count”. These ...
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62
the Python to Objective-C bridge » An introduction to PyObjC
https://pyobjc.readthedocs.io/en/latest/core/intro.html
PyObjC is a bridge between Python and Objective-C. It allows Python ... -init, -copy) 15 // are the only methods that should return retained objects.
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https://pyobjc.readthedocs.io/en/latest/core/intro.html
PyObjC is a bridge between Python and Objective-C. It allows Python ... -init, -copy) 15 // are the only methods that should return retained objects.
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63
Objects and references - Manual - PHP
https://www.php.net/manual/en/language.oop5.references.php
When an object is sent by argument, returned or assigned to another variable, the different variables are not aliases: they hold a copy of the identifier, which ...
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https://www.php.net/manual/en/language.oop5.references.php
When an object is sent by argument, returned or assigned to another variable, the different variables are not aliases: they hold a copy of the identifier, which ...
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64
NSCopying uses in Swift - SwiftRocks
https://swiftrocks.com/nscopying-nszone-uses-in-swift
An important aspect of the language was that in Objective-C, every object is a reference type. Because the language is insanely dynamic, there's ...
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https://swiftrocks.com/nscopying-nszone-uses-in-swift
An important aspect of the language was that in Objective-C, every object is a reference type. Because the language is insanely dynamic, there's ...
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65
Objective-C - Étoilé
http://etoileos.com/dev/docs/languages/obj-c/
Since you only need to use retain for assigning to instance variables or globals, it is likely that a lot of the time the variable will already be pointing to ...
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http://etoileos.com/dev/docs/languages/obj-c/
Since you only need to use retain for assigning to instance variables or globals, it is likely that a lot of the time the variable will already be pointing to ...
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66
How to copy, paste, and duplicate objects in Adobe Captivate
https://helpx.adobe.com/captivate/using/copy-paste-duplicate-objects.html
You can also copy and paste objects between different projects. Note: To reuse media objects that appear in the Library, simply drag the object ...
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https://helpx.adobe.com/captivate/using/copy-paste-duplicate-objects.html
You can also copy and paste objects between different projects. Note: To reuse media objects that appear in the Library, simply drag the object ...
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67
Copy - MTG Wiki - Fandom
https://mtg.fandom.com/wiki/Copy
These effects can create or turn an object into a copy of another. ... cards cause spells to become copies of completely different spells.
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https://mtg.fandom.com/wiki/Copy
These effects can create or turn an object into a copy of another. ... cards cause spells to become copies of completely different spells.
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68
Objective-C ARC common pitfalls and best practices
http://www.idryman.org/blog/2012/11/22/arc-best-practices-and-pitfalls/
Objective-C featured in its manually memory management instead of garbage collection. Yet, its not that manual in modern Objective-C. Apple ...
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http://www.idryman.org/blog/2012/11/22/arc-best-practices-and-pitfalls/
Objective-C featured in its manually memory management instead of garbage collection. Yet, its not that manual in modern Objective-C. Apple ...
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69
Obj-C Memory Management - 东方 - 博客园
https://www.cnblogs.com/xujinzhong/p/8434702.html
The copied object is released by Class C using the release method and the retain count becomes 0 and hence the object is destroyed. In case of ...
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https://www.cnblogs.com/xujinzhong/p/8434702.html
The copied object is released by Class C using the release method and the retain count becomes 0 and hence the object is destroyed. In case of ...
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70
Copy and paste between drawings in AutoCAD shows ...
https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/AutoCAD-Copy-and-paste-dynamic-blocks-between-drawings-does-not-retain-changes-in-blocks.html
A different block is pasted into the drawing. An older version of a block is ... Select object > Copy with a base point (CTRL + SHIFT + C).
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https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/AutoCAD-Copy-and-paste-dynamic-blocks-between-drawings-does-not-retain-changes-in-blocks.html
A different block is pasted into the drawing. An older version of a block is ... Select object > Copy with a base point (CTRL + SHIFT + C).
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71
Associated Objects - Cocoanetics
https://www.cocoanetics.com/2012/06/associated-objects/
If something was only assigned then it will not be released. If it was copied or retained then it will. And you even have a choice of doing the ...
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https://www.cocoanetics.com/2012/06/associated-objects/
If something was only assigned then it will not be released. If it was copied or retained then it will. And you even have a choice of doing the ...
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72
Learn Objective-C in Y Minutes
https://learnxinyminutes.com/docs/objective-c/
Objective-C is the main programming language used by Apple for the macOS and ... different data types, but must be an Objective-C object NSArray *anArray ...
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https://learnxinyminutes.com/docs/objective-c/
Objective-C is the main programming language used by Apple for the macOS and ... different data types, but must be an Objective-C object NSArray *anArray ...
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73
Unmanaged - NSHipster
https://nshipster.com/unmanaged/
Each reference-retaining operation needed to be balanced with a ... Now, in this post-ARC world, all Objective-C and Core Foundation types ...
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https://nshipster.com/unmanaged/
Each reference-retaining operation needed to be balanced with a ... Now, in this post-ARC world, all Objective-C and Core Foundation types ...
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74
Mac Objective-C newbie: Copying object to object
https://forums.macrumors.com/threads/objective-c-newbie-copying-object-to-object.542848/
memcpy(dest, src, sizeof(src)); is going to copy 4 bytes because src is a pointer and so sizeof returns the size of a pointer. Anyway, you're ...
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https://forums.macrumors.com/threads/objective-c-newbie-copying-object-to-object.542848/
memcpy(dest, src, sizeof(src)); is going to copy 4 bytes because src is a pointer and so sizeof returns the size of a pointer. Anyway, you're ...
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75
Learn Objective-C, Objects (Part 2): Properties - binPress
https://www.binpress.com/objective-c-objects-properties/
retain: Specifies that a retain should be called on the object upon assignment; the previous value is released. This is only valid for objects. This has to do ...
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https://www.binpress.com/objective-c-objects-properties/
retain: Specifies that a retain should be called on the object upon assignment; the previous value is released. This is only valid for objects. This has to do ...
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76
A Quick Objective-C 2.0 Tutorial - Theocacao
http://theocacao.com/document.page/510
The readonly keyword means a setter will not be generated, so it should not be used in combination with any of copy/retain/assign.
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http://theocacao.com/document.page/510
The readonly keyword means a setter will not be generated, so it should not be used in combination with any of copy/retain/assign.
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77
49 CFR Part 172 Subpart C -- Shipping Papers - eCFR
https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-C
For a hazardous waste, the shipping paper copy must be retained for three years ... Where different hazardous materials in limited quantities are packed ...
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https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-C/part-172/subpart-C
For a hazardous waste, the shipping paper copy must be retained for three years ... Where different hazardous materials in limited quantities are packed ...
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78
Objective C & OOP Examination 1 - ProProfs Quiz
https://www.proprofs.com/quiz-school/story.php?title=objective-c-oop-examination-1
8. In general, when you use the removeObjectAtIndex: method to remove an object from an array, the object's retain count will remain unchanged.
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https://www.proprofs.com/quiz-school/story.php?title=objective-c-oop-examination-1
8. In general, when you use the removeObjectAtIndex: method to remove an object from an array, the object's retain count will remain unchanged.
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79
Objective-C Blocks vs. C++0x Lambdas: Fight! - Mike Ash
https://www.mikeash.com/pyblog/friday-qa-2011-06-03-objective-c-blocks-vs-c0x-lambdas-fight.html
If a block captures another block variable, that block's memory is automatically managed. It's copied and released as necessary. Objective-C ...
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https://www.mikeash.com/pyblog/friday-qa-2011-06-03-objective-c-blocks-vs-c0x-lambdas-fight.html
If a block captures another block variable, that block's memory is automatically managed. It's copied and released as necessary. Objective-C ...
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80
Analysis of the most typical cases of retain cycles in iOS apps ...
https://madaboutios.wordpress.com/2017/04/16/analysis-of-the-most-typical-case-of-retain-cycles-in-ios-apps-objective-c/
Retain references from one object to another and vice-versa. Referencing by means of block where self is captured explicitly; Referencing by ...
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https://madaboutios.wordpress.com/2017/04/16/analysis-of-the-most-typical-case-of-retain-cycles-in-ios-apps-objective-c/
Retain references from one object to another and vice-versa. Referencing by means of block where self is captured explicitly; Referencing by ...
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81
Cocoa Naming Conventions for Memory Allocation
https://useyourloaf.com/blog/cocoa-naming-conventions-for-memory-allocation/
You take ownership of an object if you create it using a method whose name begins with “alloc” or “new” or contains “copy” (for example, ...
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https://useyourloaf.com/blog/cocoa-naming-conventions-for-memory-allocation/
You take ownership of an object if you create it using a method whose name begins with “alloc” or “new” or contains “copy” (for example, ...
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82
Objective-C: Block Capture and weakSelf - Vokal Bytes
https://bytes.vokal.io/objc-block-capture-weakself/
Any variables that are available in the local scope in which a block is defined and are used by the code in the block are “captured” by that ...
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https://bytes.vokal.io/objc-block-capture-weakself/
Any variables that are available in the local scope in which a block is defined and are used by the code in the block are “captured” by that ...
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83
Data Retention Policy: What Is It and How to Build One
https://www.techtarget.com/searchdatabackup/definition/data-retention-policy
An organization should only retain data for as long as it's needed, ... comes to creating a data retention policy, every organization's needs are different.
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https://www.techtarget.com/searchdatabackup/definition/data-retention-policy
An organization should only retain data for as long as it's needed, ... comes to creating a data retention policy, every organization's needs are different.
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84
Electronic Signatures in Global and National Commerce Act
https://www.fdic.gov/resources/supervision-and-examinations/consumer-compliance-examination-manual/documents/10/x-3-1.pdf
See Section. 101(c)(1)(C)(ii). If a change in the hardware or software requirements need to access or retain electronic records creates a material risk that.
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https://www.fdic.gov/resources/supervision-and-examinations/consumer-compliance-examination-manual/documents/10/x-3-1.pdf
See Section. 101(c)(1)(C)(ii). If a change in the hardware or software requirements need to access or retain electronic records creates a material risk that.
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85
Part 15 - Contracting by Negotiation | Acquisition.GOV
https://www.acquisition.gov/far/part-15
In different types of acquisitions, the relative importance of cost or ... One copy of withdrawn proposals should be retained in the contract file (see ...
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https://www.acquisition.gov/far/part-15
In different types of acquisitions, the relative importance of cost or ... One copy of withdrawn proposals should be retained in the contract file (see ...
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86
What is reference counting? - Musing Mortoray
https://mortoray.com/what-is-reference-counting/
For a pointer it is essential to see the difference between the reference (the pointer variable itself) and the refered to object. The actual pointers follow ...
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https://mortoray.com/what-is-reference-counting/
For a pointer it is essential to see the difference between the reference (the pointer variable itself) and the refered to object. The actual pointers follow ...
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87
COPY INTO <location> - Snowflake Documentation
https://docs.snowflake.com/en/sql-reference/sql/copy-into-location.html
Unloading Data from a Table Directly to Files in an External Location. Partitioning Unloaded Rows to Parquet Files. Retaining NULL/Empty Field Data in ...
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https://docs.snowflake.com/en/sql-reference/sql/copy-into-location.html
Unloading Data from a Table Directly to Files in an External Location. Partitioning Unloaded Rows to Parquet Files. Retaining NULL/Empty Field Data in ...
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88
NSDictionary Copies It's Keys « Vincent Gable's Blog
https://vgable.com/blog/2010/07/08/nsdictionary-copies-its-keys/
An NSDictionary will retain it's objects, and copy it's keys. Here are some effects this has had on code I've worked on.
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https://vgable.com/blog/2010/07/08/nsdictionary-copies-its-keys/
An NSDictionary will retain it's objects, and copy it's keys. Here are some effects this has had on code I've worked on.
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89
I finally figured out weakSelf and strongSelf - iOS Journeys
https://dhoerl.wordpress.com/2013/04/23/i-finally-figured-out-weakself-and-strongself/
Hmmm not quite sure why &* is needed, but this is of course different. The __block will strongly retain self for the scope of self. What I have ...
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https://dhoerl.wordpress.com/2013/04/23/i-finally-figured-out-weakself-and-strongself/
Hmmm not quite sure why &* is needed, but this is of course different. The __block will strongly retain self for the scope of self. What I have ...
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90
Programming FAQ — Python 3.11.0 documentation
https://docs.python.org/3/faq/programming.html
What is the difference between arguments and parameters? ... How do I copy an object in Python? ... If we instead assign an immutable object to x :.
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https://docs.python.org/3/faq/programming.html
What is the difference between arguments and parameters? ... How do I copy an object in Python? ... If we instead assign an immutable object to x :.
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91
What is the Difference Between Data Backup and Data Archive?
https://www.backblaze.com/blog/data-backup-vs-archive/
The goal of a backup is to make a copy of any file that you currently use and cannot afford to lose. Typically, backups are made regularly ...
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https://www.backblaze.com/blog/data-backup-vs-archive/
The goal of a backup is to make a copy of any file that you currently use and cannot afford to lose. Typically, backups are made regularly ...
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92
Learn Objective-C for Java Developers
https://books.google.com/books?id=zaSzZKYoBAAC&pg=PA444&lpg=PA444&dq=what+is+the+difference+between+copy+and+retain+in+objective+c&source=bl&ots=nbUqezoQqQ&sig=ACfU3U1xXAS_8yMI6-Tm25X94YRciOrOpw&hl=en&sa=X&ved=2ahUKEwjk_qS_4L37AhWW1DgGHfXhBqcQ6AF6BQjMAhAD
It can adopt any of the first three patterns; just replace [object retain] with [object copy]. It should be noted that all of these patterns are compatible ...
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https://books.google.com/books?id=zaSzZKYoBAAC&pg=PA444&lpg=PA444&dq=what+is+the+difference+between+copy+and+retain+in+objective+c&source=bl&ots=nbUqezoQqQ&sig=ACfU3U1xXAS_8yMI6-Tm25X94YRciOrOpw&hl=en&sa=X&ved=2ahUKEwjk_qS_4L37AhWW1DgGHfXhBqcQ6AF6BQjMAhAD
It can adopt any of the first three patterns; just replace [object retain] with [object copy]. It should be noted that all of these patterns are compatible ...
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93
Pro Multithreading and Memory Management for iOS and OS X: ...
https://books.google.com/books?id=kaN8zmImidwC&pg=PA137&lpg=PA137&dq=what+is+the+difference+between+copy+and+retain+in+objective+c&source=bl&ots=YBy9K2GhYY&sig=ACfU3U25npEKZLd_UeYUQYHzSmclgrkINA&hl=en&sa=X&ved=2ahUKEwjk_qS_4L37AhWW1DgGHfXhBqcQ6AF6BQjKAhAD
Also, you can take ownership of a Block, which is already copied to the heap, ... instead of “copy” and “release” methods in Objective-C. The concept of the ...
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https://books.google.com/books?id=kaN8zmImidwC&pg=PA137&lpg=PA137&dq=what+is+the+difference+between+copy+and+retain+in+objective+c&source=bl&ots=YBy9K2GhYY&sig=ACfU3U25npEKZLd_UeYUQYHzSmclgrkINA&hl=en&sa=X&ved=2ahUKEwjk_qS_4L37AhWW1DgGHfXhBqcQ6AF6BQjKAhAD
Also, you can take ownership of a Block, which is already copied to the heap, ... instead of “copy” and “release” methods in Objective-C. The concept of the ...
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94
objective c - What is the difference between "copy" and "retain ...
https://ostack.cn/qa/?qa=903290/
In a general setting, retaining an object will increase its retain count by one. This will help keep the object in memory and prevent it from being blown ...
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https://ostack.cn/qa/?qa=903290/
In a general setting, retaining an object will increase its retain count by one. This will help keep the object in memory and prevent it from being blown ...
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95
Objective-C Pocket Reference - Page 99 - Google Books Result
https://books.google.com/books?id=f9VkAgAAQBAJ&pg=PA99&lpg=PA99&dq=what+is+the+difference+between+copy+and+retain+in+objective+c&source=bl&ots=oKSaHkgusJ&sig=ACfU3U018fVitWMyp2W4r0BZEfZ_mcbWBQ&hl=en&sa=X&ved=2ahUKEwjk_qS_4L37AhWW1DgGHfXhBqcQ6AF6BQjLAhAD
For example, to use the third approach for a setter for a field named ownedObj, ... ownedObj = newObj; } Don't call -copy instead of -retain in a setter.
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https://books.google.com/books?id=f9VkAgAAQBAJ&pg=PA99&lpg=PA99&dq=what+is+the+difference+between+copy+and+retain+in+objective+c&source=bl&ots=oKSaHkgusJ&sig=ACfU3U018fVitWMyp2W4r0BZEfZ_mcbWBQ&hl=en&sa=X&ved=2ahUKEwjk_qS_4L37AhWW1DgGHfXhBqcQ6AF6BQjLAhAD
For example, to use the third approach for a setter for a field named ownedObj, ... ownedObj = newObj; } Don't call -copy instead of -retain in a setter.
→ Check Latest Keyword Rankings ←
96
Objective-C declared @property attributes (nonatomic, copy ...
https://syntaxfix.com/question/27814/objective-c-declared-property-attributes-nonatomic-copy-strong-weak
strong is a replacement for the retain attribute, as part of Objective-C Automated Reference Counting (ARC). In non-ARC code it's just a synonym for retain.
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https://syntaxfix.com/question/27814/objective-c-declared-property-attributes-nonatomic-copy-strong-weak
strong is a replacement for the retain attribute, as part of Objective-C Automated Reference Counting (ARC). In non-ARC code it's just a synonym for retain.
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97
Finally Waving The White Flag to Objective-C 2.0 - Lethain
https://lethain.com/finally-waving-the-white-flag-to-objective-c-2-0/
I've been fighting a very private moral war against Objective-C 2.0 ever since it was released, but I've finally given in and as of a couple ...
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https://lethain.com/finally-waving-the-white-flag-to-objective-c-2-0/
I've been fighting a very private moral war against Objective-C 2.0 ever since it was released, but I've finally given in and as of a couple ...
→ Check Latest Keyword Rankings ←
98
IOS 11 Programming Fundamentals with Swift: Swift, Xcode, ...
https://books.google.com/books?id=8ns3DwAAQBAJ&pg=PA552&lpg=PA552&dq=what+is+the+difference+between+copy+and+retain+in+objective+c&source=bl&ots=0SyZslJYuV&sig=ACfU3U1WhY89j_sJy5qd5vB0CLZsvfN-Bg&hl=en&sa=X&ved=2ahUKEwjk_qS_4L37AhWW1DgGHfXhBqcQ6AF6BQjJAhAD
In Swift's Core Graphics overlay, however, those global C functions are ... And this retain count works exactly as for a true object, in accordance with the ...
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https://books.google.com/books?id=8ns3DwAAQBAJ&pg=PA552&lpg=PA552&dq=what+is+the+difference+between+copy+and+retain+in+objective+c&source=bl&ots=0SyZslJYuV&sig=ACfU3U1WhY89j_sJy5qd5vB0CLZsvfN-Bg&hl=en&sa=X&ved=2ahUKEwjk_qS_4L37AhWW1DgGHfXhBqcQ6AF6BQjJAhAD
In Swift's Core Graphics overlay, however, those global C functions are ... And this retain count works exactly as for a true object, in accordance with the ...
→ Check Latest Keyword Rankings ←
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