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A Primer On Initialization
steven arellanoAgenda
Initialization at a High Level
Syntax of Initialization
Types of InitializationInitialization in C++
vector vec1(5, 8); // {8, 8, 8, 8, 8}
vector 14159}; // ERROR
int d = {3.14159}; // ERRORAgenda
Initialization at a High Level
Syntax of Initialization
Types of InitializationSyntax of Initialization
declarations
2, 3};
…also in initialization in functions & new expression.Agenda
Initialization at a High Level
Syntax of Initialization
Types of InitializationT object;
Default Initialization
Fundamental Types
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CODE
CODE
GENERATION
GENERATION
FOR VULKAN
FOR VULKAN
INITIALIZATION.
INITIALIZATION.LEARNING VULKAN
LEARNING VULKAN
So…
I’ve decided to learn Vulkan.
Did I learn it?
Not yet.WHAT DID I LEARN?
WHAT WHAT DID I LEARN?THIS:
THIS:THIS IS JUST INITIALIZATION
THIS IS JUST INITIALIZATIONINITIALIZING WHAT?
INITIALIZING WHAT?
1. Initialize Instance
2. Select physical device
3. Create logical device + queues constexpr Type traits
Association between elementsWHAT ARE MY PLANS?
WHAT ARE MY PLANS?
Simplify initialization using Builder classes
The Builder class knows it’s pre-requisites
Builder for target object
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Management
Back to Basics: Class Design (Part 2)
Implementation Guidelines
Data Member Initialization
Implicit Conversions
Order of Data Members
Const Correctness
Encapsulating Design Decisions Management
Back to Basics: Class Design (Part 2)
Implementation Guidelines
Data Member Initialization
Implicit Conversions
Order of Data Members
Const Correctness
Encapsulating Design Decisions Decisions
Qualified/Modified Member Data
Visibility vs. AccessibilityData Member Initialization
5
Back to Basics: Class Design (Part 1)
The Challenge of Class Design
Design Guidelines
Design for Readability
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keep an index in a loop—either by using .. to make a range of indexes or by writing an explicit initialization, condition, and increment. These two loops do the same thing: 1 var firstForLoop = 0 2 for point thereafter. The primary use of implicitly unwrapped optionals in Swift is during class initialization, as described in Unowned References and Implicitly Unwrapped Optional Properties. An implicitly array if you’re initializing it with an array literal containing values of the same type. The initialization of shoppingList could have been written in a shorter form instead: 1 var shoppingList = ["Eggs"
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extra level of optionality to expressions that already return optionals. Large integer literal initialization expressions are inferred to be of the correct integer type. For example, UInt64(0xffff_ffff_ffff_ffff) point thereafter. The primary use of implicitly unwrapped optionals in Swift is during class initialization, as described in Unowned References and Implicitly Unwrapped Optional Properties. PDF conversion array if you’re initializing it with an array literal containing values of the same type. The initialization of shoppingList could have been written in a shorter form instead: var shoppingList = ["Eggs"
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construction
5. Dealing with phased introduction of the replacement pattern
6. Dealing with initialization order of interdependent Singletons
7. Dealing with groups of Singleton dependencies
8. Stateful globally accessible
• Holds a Global state that’s mutable and
tied to program lifetime
• Initialization is out of your control (private
constructor, assignment)Classic Singleton
class Singleton globally accessible
• Holds a Global state that’s mutable and
tied to program lifetime
• Initialization is out of your control (private
constructor, assignment)Drawbacks of a Singleton
• Acts as
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Initialization Callbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Default Initialization and Destroy Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dependency Injection Autowiring mode Autowiring Collaborators Lazy initialization mode Lazy-initialized Beans Initialization method Initialization Callbacks Destruction method Destruction Callbacks In addition
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 7.3. Initialization stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The code needed to handle the information box inside the page could be the following: //Page initialization code WebMarkupContainer informationBox = new WebMarkupContainer ("informationBox"); informationBox