Verisk C++ Interview: Smart Pointers and Memory Management

Verisk C++ interviews focus on memory management and modern C++ features. This article provides a deep dive into smart pointers. oavoservice helps you master C++ core concepts.

📋 Core Concepts

1. Smart Pointer Types - unique_ptr, shared_ptr, weak_ptr
2. Memory Management - RAII Principle
3. Performance Optimization - Move Semantics
4. Common Pitfalls - Circular References

🎯 Smart Pointers Detailed

unique_ptr

#include <memory>
#include <iostream>

class Resource {
public:
    Resource() { std::cout << "Resource acquired\n"; }
    ~Resource() { std::cout << "Resource released\n"; }
};

void useUniquePtr() {
    std::unique_ptr<Resource> ptr1 = std::make_unique<Resource>();
    
    // Move semantics
    std::unique_ptr<Resource> ptr2 = std::move(ptr1);
    // ptr1 is now nullptr
    
    // Resource automatically released
}

shared_ptr

void useSharedPtr() {
    std::shared_ptr<Resource> ptr1 = std::make_shared<Resource>();
    {
        std::shared_ptr<Resource> ptr2 = ptr1;
        std::cout << "Count: " << ptr1.use_count() << "\n";  // 2
    }
    // Count becomes 1
}

💼 How oavoservice Helps

C++ Depth - Modern C++ Features (11/14/17/20) Memory Management - RAII and Smart Pointers Implementation - Implementing Smart Pointers from scratch Performance - Move Semantics and Perfect Forwarding

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Tags: #Verisk #C++ #SmartPointers #MemoryManagement #VOHelp #InterviewPrep #1point3acres

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