🔴 Advanced · Lesson 61

Smart Pointers

What is Smart Pointers?

Smart Pointers
Smart pointers manage dynamic memory automatically and reduce memory leaks. Common smart pointers are unique_ptr and shared_ptr.

Level
🔴 STL, Modern C++ and Projects

Example File
smart-pointers.cpp

Main Focus
Concept + syntax + practical C++ program

Why should you learn this?

It helps you write correct and readable C++ programs.
It is used repeatedly in school practicals, projects and competitive programming.
It builds the base for advanced topics such as OOP, STL and data structures.

Important Terms

Term	Meaning / Use
unique_ptr	Smart Pointers programming में Unique_ptr use होता है।
shared_ptr	Smart Pointers programming में Shared_ptr use होता है।
memory management	Smart Pointers programming में Memory management use होता है।
RAII	Smart Pointers programming में Raii use होता है।
ownership	Smart Pointers programming में Ownership use होता है।

Syntax / Pattern

C++

unique_ptr<int> p = make_unique<int>(10);

Example Program

main.cpp

#include <iostream>
#include <memory>
using namespace std;
int main(){
    unique_ptr<int> p = make_unique<int>(50);
    cout << *p;
}

Expected Output

Program Explanation

unique_ptr owns the memory.
Memory is released automatically when p goes out of scope.

Exam Tip: In C++ practical answers, write the logic first, then the program, then expected output. For theory, always include one suitable example.

Where will you use it?

safe dynamic memory
modern C++ projects
resource management

Common Mistakes

Using raw new/delete unnecessarily.
Copying unique_ptr directly.

Practice Tasks

Create unique_ptr for Student object.
Explain ownership.

Summary

Smart Pointers एक ज़रूरी C++ topic है। परिभाषा सीखें, syntax समझें, example program चलाएं और फिर practice tasks हल करके concept मज़बूत करें।

Smart Pointers क्या है?

Smart Pointers
Smart pointers manage dynamic memory automatically and reduce memory leaks. Common smart pointers are unique_ptr and shared_ptr.

Level
🔴 STL, Modern C++ and Projects

Example File
smart-pointers.cpp

मुख्य फोकस
Concept + syntax + practical C++ program

इसे क्यों सीखें?

यह आपको सही और पढ़ने-योग्य C++ programs लिखने में मदद करता है।
यह school practicals, projects और competitive programming में बार-बार use होता है।
यह OOP, STL और data structures जैसे advanced topics की नींव बनाता है।

ज़रूरी Terms

Term	अर्थ / उपयोग
unique_ptr	Unique_ptr Smart Pointers programming में use होता है।
shared_ptr	Shared_ptr Smart Pointers programming में use होता है।
memory management	Memory management Smart Pointers programming में use होता है।
RAII	Raii Smart Pointers programming में use होता है।
ownership	Ownership Smart Pointers programming में use होता है।

Syntax / Pattern

C++

unique_ptr<int> p = make_unique<int>(10);

Example Program

main.cpp

#include <iostream>
#include <memory>
using namespace std;
int main(){
    unique_ptr<int> p = make_unique<int>(50);
    cout << *p;
}

Expected Output

Program Explanation

unique_ptr owns the memory.
Memory is released automatically when p goes out of scope.

Exam Tip: In C++ practical answers, write the logic first, then the program, then expected output. For theory, always include one suitable example.

Where will you use it?

safe dynamic memory
modern C++ projects
resource management

आम गलतियाँ (Common Mistakes)

Using raw new/delete unnecessarily.
Copying unique_ptr directly.

अभ्यास (Practice Tasks)

Create unique_ptr for Student object.
Explain ownership.

सारांश

← Back to C++ Tutorial

💻 Live Code Editor

Is page ke program yahan ready hain — chalाएं, badlें aur seekhें. Bina kuch install kiye.

Powered by OneCompiler. Editor mein code apne aap aa jata hai — Run dabaakर output dekhें. Agar load na ho to naye tab mein kholें.