BINDING TIMES…
BINDING TIMES
Binding என்பது ஒரு programming entity-க்கு ஒரு property / attribute-ஐ associate செய்வது. Simple Tamil: ஒரு name, variable, operator, function போன்றவற்றுக்கு அதற்கான meaning/type/memory/address போன்ற ஒன்றை connect செய்வதே Binding.
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Definition
Binding என்பது ஒரு programming entity-க்கு ஒரு property / attribute-ஐ associate செய்வது. S……
Explanation
Example
int x = 10; இங்கு: x → int என்ற association உருவாகிறது. ……
List
1. BINDING என்றால் என்ன?…
Explanation
Programming language-ல் பல associations இருக்கும். Examples: Variable name ↔ Data type Variable ↔ ……
SIMPLE EXAMPLE
Explanation
int age = 25; இங்கு பல bindings இருக்கின்றன. age ↓ Identifier name age → int Type binding.……
BINDING TIME
Definition
ஒரு binding எப்போது establish செய்யப்படுகிறது என்பதே Bi……
BASIC FORMULA
Definition
Binding = Entity + Attribute associ……
Explanation
Example
int x; x-ன் type int என்று compiler தெரி……
List
1. WHY BINDING TIME IS IMPORT……
Explanation
Binding early-ஆ அல்லது late-ஆ நடப்பது programming language-ன்: Flexibility Efficiency Safety Portability……
MAJOR BINDING TIMES
Explanation
Programming language concepts……
Language Design Time
Language Implementation Time
Compile Time
Link Time
Load Time
Runtime
Explanation
சில textbooks: Program Writing Time……
COMPLETE FLOW
Explanation
Language Design ↓ Language Implementation ↓ Program Writing ↓……
LANGUAGE DESIGN TIME
Definition
Programming language create/design செய்யப்படும் நேரத்தில் சில lan……
LANGUAGE DESIGN TIME EXAMPLE
Definition
C++ language designers decide……
Definition
- means addition in suitable ……
Definition
if is a keyword while is a keyword int repres……
Explanation
Example
a + b…
List
- operator-ன் basic meaning l……
List
Programmer தனியாக
- means addition…
Explanation
என்று ஒவ்வொரு program-லும் de……
KEYWORD BINDING
Explanation
C++: while இந்த word ஒரு loop keyword என்று decide செய்யப்பட்டிருப்பது……
OPERATOR BINDING AT LANGUAGE DESIGN
Explanation
Example
a + b Basic + syntax and meaning……
List
- → multiplication…
Explanation
/ → division % → remainder for integral operands இவை language design-level decisions……
LANGUAGE IMPLEMENTATION TIME
Definition
ஒரு programming language-க்கு compiler/interpreter/runtime implement செய்யும் போது……
IMPLEMENTATION TIME EXAMPLE
Definition
Data type size ஒரு classic example. C++ language standard சில ranges/……
Explanation
Example
sizeof(int) ஒரு implementation-ல் commonly: 4 bytes ஆக இருக்கலா……
IMPLEMENTATION TIME PROPERTIES
Explanation
Examples: Representation of integer Floating-point implementation details Size/alignment choices w……
PROGRAM WRITING TIME
Explanation
Programmer source code எழுதும் போது சில bindings explicitly select செய்கிறார். int mark; Programmer: mark → i……
ANOTHER PROGRAM WRITING EXAMPLE
Explanation
double salary; Programmer decides: salary ……
COMPILE TIME BINDING
Explanation
மிகவும் important.…
Definition
Compiler source program translate செய்யும……
COMPILE-TIME TYPE BINDING
Explanation
Example
int x = 10; Compiler knows: x → int Compile time-ல்……
STATIC BINDING
Explanation
Compile time அல்லது execution-க்கு முன் fix ஆகும……
Program
Example
Explanation
show() call எந்த non-virtual function-ஐ refer செய்கிறது ……
EARLY BINDING
Definition
Program execution ஆரம்பிக்கும் முன்பே association resolve செய்யப்பட்டால்: Early Binding……
COMPILE-TIME EXAMPLE - OVERLOADING
Definition
void print(int x) { cout…
OPERATOR OVERLOADING BINDING
Definition
a + b If a and b are integers:…
Definition
- → integer addition…
Definition
If user-defined class overloads +: obj1 + obj2 compiler s……
LINK TIME
Definition
Object modules மற்றும் libraries ஒன்றாக conn……
SIMPLE LINK TIME EXAMPLE
Definition
File 1: int add(int, int); int main() { return add(10,20); } File 2: int add(int a, int b) { return a + b; ……
EXTERNAL FUNCTION BINDING
Explanation
sqrt() implementation math library-ல் இருக்கலாம். Linking……
LINKER ROLE
Explanation
Object File + Library ↓ Linker ↓ Resolve externa……
LOAD TIME
Definition
Executable memory-க்கு load செய்யப்பட……
LOAD TIME ADDRESS BINDING
Definition
Executable disk-ல் இருக்கும்போது final physical memory position known இல்லாமல் இருக்கலாம். Loader:……
RELOCATION
Definition
Program memory-ல் load செய்யும்……
Concept
Program compiled address ↓ Loader ↓ Actual loaded address Address adjustment load time-ல் h……
DYNAMIC LIBRARY BINDING
Concept
Shared libraries: .dll .so பயன்படுத்தும் sys……
Explanation
Example
Executable ↓ Dynamic Loader ↓……
RUNTIME BINDING
Explanation
இது மிகவும் முக்கியமான topic.…
Definition
Program execute ஆகிக் கொண்டிருக்கும் நேரத்தில் es……
LATE BINDING
Definition
Actual association program execut……
Explanation
Example
C++ virtual functions.…
VIRTUAL FUNCTION EXAMPLE
Why? p type: Base* ஆனால் அது poin……
இதுவே: Dynamic Binding…
STATIC VS DYNAMIC BINDING - SAME EXAMPLE
Program
Without virtual
Program
Call
Function selection static type அடிப……
runtime-ல்.…
STATIC BINDING
Definition
Binding compile time / before execution fixed ஆகும். Also called: Early Binding C……
DYNAMIC BINDING
Definition
Binding runtime-ல் resolve ஆகிறது. Also call……
STATIC VS DYNAMIC BINDING
COMPILE-TIME POLYMORPHISM
Definition
Examples: Function Overloading Oper……
Explanation
Example
void fun(int); void fun(double); Call: f……
RUNTIME POLYMORPHISM
Explanation
Achieved mainly using: Inheritance + Virtual Functions + Base pointer/refer……
MEMORY BINDING
Explanation
Variable-க்கு memory allocate செய்யப்படும் time variable வகையைப் பொறுத்து மாறும். S……
LOCAL VARIABLE BINDING
Explanation
Function call செய்யும்போது x-க்கு storage created ஆகும். Functi……
DYNAMIC MEMORY BINDING
Explanation
int* p = new int; new execute செய்யும் போது: Heap me……
Concept
p ↓ Heap memory location ↓ 10……
VALUE BINDING
Concept
int x; cin >> x; x value user input அடிப்படையில் run……
TYPE BINDING
Concept
C++: int x; x type: int compile time-ல் fixed. Python: x = 10 Then: x = "Hello" Names and object ty……
STATIC TYPE BINDING
Concept
Type before runtime decided.…
Explanation
Example
double amount; amount → doubl……
DYNAMIC TYPE BINDING
Explanation
Language variable/name type associati……
Explanation
Now: x refers to integer object Later: x = "Hello" Now: x r……
NAME BINDING
Explanation
Identifier எந்த declaration/entity-ஐ refer செய்……
Explanation
Inside fun(): x → local x not global x. இந்த resol……
SCOPE AND BINDING
Explanation
Binding மற்றும் scope closely related. Binding: Na……
Program
Example
Explanation
Binding: x → local integer va……
LIFETIME AND BINDING
Explanation
Scope மற்றும் lifetime same அல்ல. Sc……
Program
Example
Explanation
count scope: fun() only But lifetime: Entire……
BINDING AND STORAGE ALLOCATION
Explanation
Different storage categories: Static allocation Stack allocation Heap allocation Static P……
STATIC STORAGE ALLOCATION
Explanation
Example
static int count; Storage program execution duration வரை இர……
STACK DYNAMIC ALLOCATION
Program
Example
Explanation
Function invocation: fun() ↓ Activation recor……
HEAP DYNAMIC ALLOCATION
Explanation
int* p = new int; Runtime: ne……
OPERATOR BINDING
Explanation
Example
10 + 20 +: integer addition C……
List
Here
- → string concatenation oper……
Explanation
Appropriate overloaded operat……
METHOD BINDING
Explanation
Object-oriented programming-ல் method call: obj.show(); Which show() gets execu……
VTABLE - CONCEPTUAL IDEA
Explanation
C++ compilers commonly implement virtual dispatch using structures o……
Important
The C++ language standard specifies behavior, not that every c……
DYNAMIC DISPATCH
Important
Virtual method runtime select……
Explanation
Example
Base reference ↓ Derived object ↓ Virtual call ↓ Runtime dispatc……
EARLY BINDING ADVANTAGES
Explanation
Faster execution Compiler optimization eas……
EARLY BINDING DISADVANTAGES
Explanation
Less runtime flexibility More decisi……
LATE BINDING ADVANTAGES
Explanation
Flexibility Runtime polymorphism Extensibility Dynamic behavior……
LATE BINDING DISADVANTAGES
Explanation
Runtime overhead More complex implementat……
BINDING TIMES - COMPLETE TABLE
ONE EXAMPLE THROUGH ALL STAGES
Program
Consider
Explanation
Now inch-by-inch: Language Design Time C++ defines: class virtual new pointer meanings. Implementation Time C……
Explanation
actual object: Circle so: Cir……
BINDING TIME AND FLEXIBILITY
Explanation
Very important principle: Earlier Binding ↓ Less flexibi……
BINDING TIME AND LANGUAGE DESIGN
Explanation
Language designer chooses whether some decision should be: Design Time Compile Ti……
BINDING TIME AND ERRORS
Explanation
Early binding: Errors often detected early. int x = "Hello"; Compiler diagnostic. Late binding: Some probl……
BINDING TIME AND EFFICIENCY
Explanation
If compiler already knows: Function Type Memory layout Operation it can optimize better. Therefore stat……
BINDING TIME AND POLYMORPHISM
Explanation
C++ polymorphism: Compile-Time Polymorphism ↓ Static Binding Examp……
OVERLOADING VS OVERRIDING
Explanation
Important connection. Overloading void show(int); void show(double); Which function? Co……
STATIC BINDING EXAMPLE
Program
Compiler can determine
Explanation
early.…
DYNAMIC BINDING EXAMPLE
Because: Actual object = B Ru……
BINDING vs ASSIGNMENT
These are not same. Binding: ……
Practice
Assignment
Store/change a value…
Explanation
Example
int x; Type binding: x → int ……
Practice
Assignment
10 stored in x…
BINDING vs DECLARATION
Practice
Declaration introduces entity/type. int x; Binding is broader: x ↔ i……
BINDING vs LINKING
Practice
Do not confuse. Binding General association. Linking Object……
BINDING vs SCOPE
Practice
Binding = What does the name ……
Explanation
Example
int x = 10;…
Explanation
Inside fun(): x binds to loca……
Flow
Complete binding time flow: Language Designed ↓ Keywords / Syntax fixed ↓ Compiler Implemented ↓ Representati……
Important
Most important definitions: Binding = Association between a program entity and an attribute. Binding……
Memory Trick
Order நினைவில் வைக்க: D I C L L R D → Design Time I → Implementation Time C →……
Comparison
Static Binding vs Dynamic Binding
Common Mistake
Common error
Do not confuse: Binding ≠ Assignment Binding ≠ Linking Static Binding ≠ Static Var……
Important
dynamic binding and dynamic memory allocation both runtime-related concepts……
TRB Point
1. Association between an ent……
TRB Point
Answer: Binding…
Time at which an association is established:
TRB Point
Answer: Binding Time…
Binding resolved before execution:
TRB Point
Answer: Static / Early Binding…
Binding resolved during execution:
TRB Point
Answer: Dynamic / Late Binding…
C++ virtual functions use:
TRB Point
Answer: Dynamic Binding…
Function overloading normally uses:
TRB Point
Answer: Static Binding…
External references are commonly resolved at:
TRB Point
Answer: Link Time…
Program mapped to memory at:
TRB Point
Answer: Load Time…
Heap memory allocation occurs at:
TRB Point
Answer: Runtime…
Runtime polymorphism depends on:
TRB Point
Answer: Dynamic Binding…
MCQ
Binding is:…
MCQ
Binding time refers to:…
MCQ
Which is an example of late b……
MCQ
Function overloading is gener……
MCQ
External function references ……
MCQ
A variable's value obtained t……
MCQ
Dynamic binding is also calle……
MCQ
Which is most associated with……
MCQ
Which occurs before program e……
MCQ
Which is the correct order?…
TRB Point
Exam point
2 Marks: Define Binding Binding is the association of an attribute with a program entity, such as binding a v……
Summary
Binding ↓ Entity + Attribute ↓ When association occurs? ↓ Binding Time Major binding times: Language Design T……
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