C vs. C++: Exploring the Key Differences – IQCode

C vs C++: Key Differences

C and C++ are widely used programming languages that are popular in various fields. While C++ was developed as an extension of C, it has some key differences:

Features C C++
Programming Paradigm Procedural programming language Object-Oriented programming language
Memory Management Manual memory management Automatic memory management with the help of constructors and destructors
Functionality Does not support polymorphism Supports both runtime and compile-time polymorphism with the help of function overloading and virtual functions
Code Organization Uses header files for code organization Uses header and source files for code organization

Both languages have their advantages and disadvantages and the choice depends on the project requirements and the programmer’s familiarity with the language.

Additional Resources

Here are some additional resources for learning about C and C++ languages:

Frequently Asked Questions

Q.1: Is C++ better than C?

It depends on the project requirements and the programmer’s familiarity with the language. C++ is more powerful than C when it comes to object-oriented programming, but C is often preferred for systems programming due to its efficiency and low-level control.

Q.2: How are C and C++ different?

Some of the key differences between C and C++ are their programming paradigms, memory management, support for polymorphism, and code organization techniques.

Q.3: Is C easier than C++?

C and C++ have different programming paradigms and it depends on the programmer’s experience and familiarity with the language. Some programmers find C easier to learn due to its simpler syntax, while others find C++ easier to use for object-oriented programming.

Q.4: Is C still used?

Yes, C is still used for various applications such as operating systems, embedded systems, and game development.

Q.5: What can C++ do that C cannot?

C++ supports object-oriented programming concepts such as classes, objects, inheritance, and polymorphism, which are not available in C.

What is C?

C is a widely-used, structured programming language that was originally created for system development. It became popular due to its speed, flexibility, and simplicity, making it suitable for a variety of applications.

Developed by computer scientist Dennis Ritchie at Bell Laboratories in 1972, C is often referred to as God’s programming language and serves as a base for many modern languages, including Java, Python, and C++.

C’s versatility is most evident in its use in popular applications and software, such as Windows, Apple OS X, and Symbian operating systems, language compilers, network drivers, and widely-known applications like MYSQL and Adobe.

Key Features of C Programming

C programming language has been around for a long time and is still popular due to its simplicity and adaptability. Below are some key features of the language:

  • Simple: C is an easy-to-understand programming language.
  • Portable: It is adaptable to different platforms and is machine-independent.
  • Procedural: It follows a certain flow of program to run the code.
  • Dynamic Memory Allocation: C supports memory space allocation during runtime.
  • Rich Library: It comes with a rich library of built-in and user-defined functions.
  • Speed: It provides rapid performance and is faster than Java and Python.

Learn more about C language features.

What is C++?

C++ is a powerful and popular object-oriented programming language used to create high-performance applications. It was developed by Bjarne Stroustrup in 1979 as an extension of the C programming language by incorporating the features of user-defined classes and objects. C++ is widely used in operating systems, cloud-distributed systems, game development, graphic applications, smartwatches, and libraries.

C++ has received three modern updates, making it a versatile and in-demand programming language in the market. It provides a solid foundation for programmers to learn object-oriented programming concepts in a simpler and more comprehensive way.

Key Features of C++

C++ is a compiler-based programming language with a static type system, making it faster and more powerful. It also offers features like pointers, object-oriented programming concepts, extensibility, and includes all the features of C. The language is built around data and objects, which allows for easy code maintenance and prevents data redundancy.

C++ includes OOP concepts such as Polymorphism, Encapsulation, Abstraction, and Inheritance, which contribute to more flexible and effective problem-solving.

A Comparison of C and C++


Code written in C can be run with the C++ compiler. C++ supports namespace, inline function, generic data types, virtual and friend functions. C is more suitable for low-level implementations compared to C++. Overall, C focuses more on methods or processes while C++ focuses on data instead.

Key Differences Between C and C++

  • Programming Style: C is function-driven while C++ is object-driven.
  • Approach: C follows a top-to-down programming approach while C++ follows a bottom-to-top approach.
  • Program Division: C divides the program into functions while C++ uses objects and classes.
  • Data Types: C supports built-in data types while C++ supports user-defined data types in addition to built-in types.
  • Exception Handling: C++ supports exception handling while C does not.
  • Application Development: C is more suitable for assemblers, text editors, network drivers and low-level implementations while C++ is more suitable and extensible for high-end programming such as game development and embedded systems.
  • File Extension: C files have a .c extension while C++ files have a .cpp extension.
  • Compatibility: Code written in C can be run with the C++ compiler, but not the other way around.
  • Ease of Coding: C is hands-on and easy to code while C++ is more object-oriented but still easy to code.
  • Data Security: C++ is a more secure programming language than C.
  • Inline Function: C++ supports inline functions while C does not.
  • Variable: Variables in C need to be defined at the beginning while variables in C++ can be declared anytime.
  • Namespace: C++ supports namespace while C does not.
  • Source Code: C was the base of many foundational languages and is known for its free format source code while C++ was developed from and inspired by the C programming language.
  • Used By: C is used by companies such as Microsoft, Telegram, Oracle and MySQL while C++ is used by companies such as Google, Microsoft and Torque 3-D game engine.
  • Header Files: Both C and C++ use header files.
  • Access Modifiers: Access modifiers are used in C++ structures but not in C structures.
  • Memory Allocation/De-allocation: C provides malloc(), calloc() and free() functions while C++ can use the new and delete operators for dynamic memory allocation and de-allocation.
  • Inheritance: Inheritance is not supported by C while it is supported by C++.
  • Focus: C focuses more on methods or processes while C++ focuses on data.
  • Virtual and Friend Functions: C++ supports virtual functions and friend functions while C does not.

C vs C++: Which is Better?

When it comes to choosing between C and C++, both have their advantages and disadvantages. C is a simple and efficient language that serves as the foundation for many other popular languages including C++. On the other hand, C++ adds OOP concepts such as encapsulation, abstraction, inheritance, etc., making it more versatile than C. Ultimately, the choice between the two depends on the specific needs of your project.

Advantages of C Programming

- Open source
- Structured programming language
- Rich set of built-in functions
- Excellent for implementing algorithms and data structures
- Portable across different systems and platforms

C language is a popular programming language among software developers due to its many advantages.

Disadvantages of C Programming

- Lack of support for OOP concepts
- No implementation of namespaces
- Lack of exception handling
- Run-time errors are only detected after code execution, making troubleshooting complex for larger programs

C++ Advantages

// C++ is widely used due to its numerous advantages:

// 1. Dynamic Memory Allocation
// 2. Multi-Dimensional Language emphasizing logic, style, and program procedures
// 3. Rich Built-in Libraries
// 4. Object-Oriented Programming
// 5. Large Community
// 6. High demand among top companies
// 7. Scalability for small or large data sets

C++ Language Disadvantages

- Complexity
- Unsafe: C++ has some security measures, but functions like pointers and global variables can cause crashes and code issues.
- No garbage collection or constant memory tracking, leading to mistakes and potential memory corruption.


Choosing between C and C++ ultimately depends on the specific needs of your project as a programmer. After examining their features, drawbacks, and advantages, it becomes clear that both languages have their own strengths and weaknesses.

C is better suited for low-level applications and is a great foundational language for beginners. On the other hand, C++ extends on C by providing additional OOP concepts that allow for faster, more efficient, and more secure development of complex applications. Additionally, the demand for C++ continues to grow, making it a promising language for developers.

To make an informed decision about which language to use between C and C++, it is important to thoroughly evaluate your project requirements.

Frequently Asked Questions

Is C++ Better Than C?

In terms of creating complex projects, C++ is better than C as it is a superset of the language and includes enhanced features, including OOP concepts. C++ offers more versatility and flexibility than C.

Differences between C and C++

C is a procedural programming language used mainly for creating system applications and low-level programs. On the other hand, C++ is a language that adds object-oriented features to C. It includes encapsulation, inheritance, and polymorphism, making it ideal for complex application development. Although they share similarities, they are different in many aspects.

//Example of C code
int main()
printf("Hello, World!");
return 0;

//Example of C++ code
using namespace std;
int main()
cout << "Hello, World!"; return 0; }

Is C Easier than C++?

In terms of learning, C is easier due to its practical nature. However, when it comes to coding, C++ is simpler due to its standardized principles and fixed structures.

Is C still in use?

Yes, C is still widely used by developers and in various companies even today.

//No code to show as it is a plain statement.

Differences Between C and C++

C++ is an object-oriented programming language that offers several advantages over C. These benefits include enhanced data security, better performance, and built-in functions that are more robust. C++, unlike C, allows for polymorphism and inheritance, making it a more scalable language. Overall, C++ is a more modern and versatile language that can accomplish what C cannot.

Additional Resources for C/C++ Developers

Here are some links to websites and tools that can help you as a C/C++ developer:

  • Interview Questions:
  • MCQ:
  • Online Compilers:
  • IDEs:
  • Projects:
  • Books:
  • Applications of C:
  • Comparison:

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