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C++ Frequently Asked Questions

C++ Interview Questions and Answers

C++

Understanding Templates in C++

Posted on: September 21, 2024

Templates allow you to write generic and reusable code. You can create functions or classes that work with any type. Templates enhance flexibility and reduce redundancy. Here’s an […]

C++

Introduction to C++ Standard Template Library (STL)

Posted on: September 21, 2024

The C++ Standard Template Library (STL) provides useful components. It includes algorithms, containers, and iterators. STL enhances productivity and code quality. Common containers are `vector`, `list`, and `map`. […]

C++

Using std::visit with Variant Types in C++17

Posted on: September 21, 2024

C++17 introduced `std::variant` for type-safe unions. You can hold multiple types in a single variable. `std::visit` allows you to apply a function to the active type. This simplifies […]

C++

Implementing Type Erasure in C++

Posted on: September 21, 2024September 27, 2024

Type erasure allows you to hide type information. This promotes flexibility and code reuse in C++. You can achieve type erasure with interfaces and inheritance. Here’s a simple […]

C++

Using std::chrono for Time-Related Operations in C++

Posted on: September 21, 2024

The `std::chrono` library provides tools for time management. You can measure time intervals and durations easily. This library enhances precision in time-related tasks. Here’s an example: “`cpp #include […]

C++

Using std::bind and std::function in C++

Posted on: September 21, 2024September 21, 2024

`std::bind` and `std::function` enhance function flexibility. `std::function` can store any callable object. `std::bind` allows you to bind arguments to functions. Here’s an example:

C++

Understanding std::optional in C++

Posted on: September 21, 2024September 21, 2024

`std::optional` represents an optional value. It indicates whether a value is present or not. This helps avoid null pointer exceptions. Here’s a simple example: In this code, `std::optional` […]

Programming

What are the differences between C and C++?

Posted on: September 21, 2024

C and C++ are two distinct programming languages, though C++ is considered an extension of C. C focuses on procedural programming, where programs are a sequence of instructions […]

Programming

Explain the concept of OOP (Object-Oriented Programming) and its principles

Posted on: September 21, 2024

Object-Oriented Programming (OOP) is a paradigm that focuses on organizing code into objects. These objects contain both data (attributes) and behaviors (methods). The four fundamental principles of OOP […]

Programming

How do you implement polymorphism in C++?

Posted on: September 21, 2024

Polymorphism in C++ allows objects of different types to be treated uniformly. It comes in two forms: compile-time (or static) polymorphism and runtime (or dynamic) polymorphism. Compile-time polymorphism […]

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  • What Is the Difference Between struct and union in C?
  • How Does the sizeof Operator Work in C?
  • What Is the Purpose of the Void Pointer in C?
  • malloc() vs calloc(): Key Differences in C Memory Allocation
  • Understanding the Different Types of Storage Classes in C
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