C vs C++ Comparison: Find Out the Difference Between C and C++ (2024)

Both C and C++ are general-purpose programming languages. In fact, C++ is a descendant of C, which means they share some features. However, over the last few years, C VS C++ has become a hot topic because these programming languages started to differ more and more.

Those who want to learn programming often seek to find out the differences of these two.

So, what is the difference between C and C++? Well, C++ is for handling complex tasks that C was not able to perform. For instance, C++ offers a stronger type checking and allows more programming styles than C.

Additionally, detecting bugs and other issues in the C++ code is easier than in C since C does not offer exceptions. The term exception refers to problems that appear while the program runs. In C++, the exception handling is a way to separate a portion of code and review it.

Table of Contents

  • 1. C
  • 2. C++
  • 3. Main differences between C and C++
  • 4. Comparing Objective-C to C++
  • 5. Which should you learn?
  • 6. Performance comparison
  • 7. Conclusions

C

C vs C++ Comparison: Find Out the Difference Between C and C++ (1)

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This programming language is called C because it was based on a little-known language called B and the name C was an alphabetical joke. However, this improvement of B led to the creation of an entirely new programming language.

One difference between C and C++ is that C is a procedural language since it follows a step-by-step procedure consisting of functions. Additionally, C is a low-level language that is more complicated for beginners to learn than high-level languages like Python or C#.

In other words, C provides instructions for the computer in the top-down approach.

In contrast, when it comes to C VS C++, C++ is object-oriented instead of procedure-oriented. It means that C++ focuses on inheritance (when a class gets properties and characteristics from another class), code reusability, encapsulation (hiding information about objects), and creating objects.

C programs are usually high-speed. Why? Well, programming languages like Python offer additional procedures that make their programs slower. However, C is a language that lets developers handle computer hardware manually.

While this is an advantage in terms of performance, it means that C developers have to prevent memory leaks and allocate memory themselves.

What is C used for? C is mostly involved in the creation of operating systems, language compilers or interpreters, embedded systems, microcontrollers, etc.

For instance, C is very useful for machine learning as well. However, the leading language for ML is Python due to its simplicity and user-friendliness. Game development is also a rich area for C developers.

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C++

C vs C++ Comparison: Find Out the Difference Between C and C++ (5)

In terms of C VS C++, the latter can do everything that C can. Both of them are general-purpose, low-level programming languages, and they have multiple similarities:

  • They require the compilation in every operating system to work.
  • Both support manual memory management. They do not offer garbage collectors that would free memory from unused objects.
  • Due to the lack of additional processing (such as automatic garbage collection), C and C++ are more lightweight and offer high-performance.
  • Since they both are general-purpose programming languages, their use cases are very broad (starting from the creation of operating systems and leading to machine learning).
  • Both are low-level languages, meaning that they are closer to the hardware and provide more control over projects.

As you can see, there are plenty of similarities.

Main differences between C and C++

Comparing C++ vs. C reveals a few differences between these two programming languages:

  • C is a procedural language, while C++ is object-oriented. This feature refers to the programming style that developers follow. For instance, procedural programming follows step-by-step guidelines of functions, while object-oriented programming focuses on objects, inheritance, etc.
  • C++ has a well-designed exception handling (Try and Catch blocks), which makes the debugging process easier than in C. This feature is especially useful for finding difficult errors. In C, error handling occurs through functions.
  • C++ also supports information hiding (closely related to encapsulation).
  • Data is more secure in C++ than in C because C++ offers modifiers to limit user access.
  • C++ supports function overloading, which means that a function with the same name can be declared for different purposes.
  • C++ also uses namespaces, which let you organize code according to the desired scope. For instance, grouped entities can be put into a narrower scope referred to as namespace scope. C does not support this feature.
  • Specialists relate C++ to the concept of multi-paradigm. Even though we classified C++ as an object-oriented language, it has features of a procedural one as well. Therefore, C++ is more flexible than C since C only follows the procedural logic.

Therefore, the comparison of C VS C++ syntax rules leads to a few important conclusions:

  • The use of C and C++ differs in a way that you will follow different programming approaches.
  • With C++, developers can follow both procedural and object-oriented programming.
  • C allows only procedural programming.
  • C++ offers more features such as error handling, data security, scope management, information hiding, etc.
  • However, for beginners, C language might be more straightforward and helpful in terms of understanding the main concepts of low-level programming.

As you can see, the languages are quite different.

Comparing Objective-C to C++

Objective-C is a general-purpose programming language that enhances C with the Smalltalk-style messaging. It is mainly for creating applications for iOS and OS X operating systems. It is another variation of the C programming language.

C vs C++ Comparison: Find Out the Difference Between C and C++ (6)

The question of Objective-C VS C++ emerges due to the fact they are both object-oriented languages that derived from C. Here is a comparison of these languages:

  • Objective-C does not offer multiple inheritance while C++ does.
  • There are differences in the way C++ and Objective-C code looks. For instance, C++ uses true and false for bool, while Objective-C works with YES and NO for BOOL.
  • Objective-C has a Smalltalk feature, which is a messaging paradigm in which you transfer so-called messages to objects through functions or selectors.
  • While C++ manages structs and classes the same, Objective-C treats them completely differently.
  • Objective-C is more dynamic than the static C++ programming language.
  • In theory, Objective-C is slower than C++ because of the dynamic method dispatch.
  • Objective-C is mostly for creating applications for Apple products, while C++ is a more diverse language applied in numerous development fields.

Which should you learn?

You might now ask: should I learn C or C++? Learning C++ first might seem like the best option because it has more to offer than C. However, C helps you understand how hardware, especially CPU, works due to the straightforwardness of this language.

You will get familiar with the low-level programming concept, learn about pointers, and proper memory allocation. Furthermore, C has fewer features that beginners will need to analyze.

However, the decision to learn C VS C++ first depends on the way you want to work. There is no actual need to learn C before C++. Even if you start by learning C++, you will probably encounter some of the similar elements in syntax and semantics.

Developers that start with C often complain that they need to get rid of the habits they learned in C to use C++ correctly. Learning C first might make developers stick to procedural programming without exploring the object-oriented side.

For instance, if your life-long dream is video game development, you are better off starting to learn C++ immediately.

Performance comparison

Comparing C VS C++ in terms of performance usually leads to the fact that C is faster than C++. However, in certain situations, C++ can win this race as well. Indeed, interpreted languages will never be faster than compiled ones. However, determining the speed difference of the two compiled languages is tricky.

C vs C++ Comparison: Find Out the Difference Between C and C++ (7)

C VS C++ speed highly depends on the produced code overall. A well-written C++ code can perform better or the same as a well-written C code.

For instance, more robust programming will probably be quicker in C++ than in C. Therefore, specialists do not state that one language is faster than the other one. In the case of C VS C++ performance, it is often stated that C++ is a match for C.

C++ indeed offers many features that might lead to poorer performance, but it is not necessary to use them. Even if you do, the speed difference thanks to modern compilers probably won’t be significant enough to favor one programming language.

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Conclusions

Overall, the C VS C++ battle does not have a clear winner as both languages have their pros and cons. However, you should remember that C is a procedural language that follows a step-by-step programming style.

On the other end, we have the object-oriented C++, which focuses on objects and such features as inheritance or information hiding. Additionally, C++ lets developers follow some principles of procedural programming as well.

In terms of the learning plan, it might be better to learn C first since that will help beginners to understand machine code, memory allocation, pointers, etc.

Mastering these concepts with C is more beginner-friendly since C is a straightforward language. However, you can skip the part of learning C and start with C++ right away. This decision might help you in the future since programming habits in C highly differ from the ones in C++.

C++ VS C in terms of speed should not be too much of a priority when deciding which language to learn. Both languages offer high-performance, and their differences are usually minimal. For instance, a well-written C++ code can even be faster than C in some cases.

If in the end you decide to learn C++, you should definitely check out this edX's course on C++.

C vs C++ Comparison: Find Out the Difference Between C and C++ (2024)

FAQs

C vs C++ Comparison: Find Out the Difference Between C and C++? ›

C allows for more fine-grained control over memory and execution, which can result in more efficient code in certain situations. C++ introduces additional abstractions, such as classes, templates, and object-oriented programming features, which may introduce so.

What is the difference between C and C++ in C++? ›

The main difference between C and C++ is that C is a procedural programming language that does not support classes and objects. On the other hand, C++ is an extension of C programming with object-oriented programming (OOP) support. Is C and C++ a compiled or interpreted language? C and C++ are both compiled languages.

How do you tell if something is C or C++? ›

The file extension for a file that contains C code is . c , whereas the file extension for C++ files is . cpp .

What is the main function difference between C and C++? ›

1)Generally there is no difference between main() in c and c++ but we can say that c++ main is superset of c main(). means all the property of c is hold by c++. 2)by default c main() returns void but in c++ it returns integer value.

How difficult is C compared to C++? ›

C++ is a more object-oriented high-level programming language which requires fixed construction and principles. However, it is easier to code. C programming language does not adhere to the encapsulation concept and allows easy data manipulation from outside code.

How structure of C++ is different from C? ›

Structures in C are limited to grouping data variables, lacking member functions and access specifiers. In contrast, C++ structures support member functions, constructors, access specifiers, and can participate in inheritance, offering enhanced encapsulation and versatility.

When would you use C vs C++? ›

C is a low-level language ideal for tasks requiring precise control over the hardware, while C++ is a high-level language that is easier to write and debug. Ultimately, the choice between C and C++ depends on your goals and needs as a programmer.

Can you understand C++ if you know C? ›

If you're an experienced C programmer, you may find that learning C++ is relatively easy. After all, C++ was designed to be backward-compatible with C, so many of the basic concepts and syntax of C carry over to C++.

What is the difference between object C and C++? ›

The differences between Objective C and C++ can be summarized very simply. Compared to C++, Objective C is: less feature rich, less complex. more dynamic.

Can I write C if I know C++? ›

In the strict mathematical sense, C isn't a subset of C++. There are programs that are valid C but not valid C++ and even a few ways of writing code that has a different meaning in C and C++. However, C++ supports every programming technique supported by C95 (C90 plus an Amendment) and earlier.

What is function in C and C++? ›

A function is a block of code which only runs when it is called. You can pass data, known as parameters, into a function. Functions are used to perform certain actions, and they are important for reusing code: Define the code once, and use it many times.

What is the difference between C and C++ PDF? ›

Difference Between C and C++ Download PDF

The difference between C and C++ is that C is a procedural programming language that lacks object and class support while C++ is a more advanced version of C that includes support for object-oriented programming.

What is the function to find the difference in C++? ›

C++ Algorithm set_difference() function is used to find the difference of two sorted ranges[first1, last1) and [first2, last2), which is formed by the elements that are present in the first range, but not in the second one.

What is the main difference between C and C++? ›

There is a major difference between C and C++. The C language is a procedural one that provides no support for objects and classes. On the other hand, the C++ language is a combination of object-oriented and procedural programming languages.

What can C do that C++ can't? ›

C allows struct , union , and enum types to be declared in function prototypes, whereas C++ does not.

How much C and C++ are different? ›

Difference Between C and C++
CC++
C only supports pointers and there is no concept of reference variables in C.C++ has both pointers and reference variables.
There is no such thing as exception handling in C.C++ supports exception handling and you can use the try and catch block for handling the exceptions.
17 more rows
Dec 12, 2022

Why do people use C and not C++? ›

What You Learnt: C is somewhat better than C++ in speed and efficiency. It is easier to code and debug in C than C++. C is default choice for source level programming, like kernel programming, driver development etc.

Should I learn C or C++? ›

If you want a strong foundation in systems programming, low-level memory management, and performance optimization, start with C. On the other hand, if you prefer a more versatile language with higher-level abstractions and broader industry applicability, C++ is the way to go.

Does C++ have the same syntax as C? ›

File input and output: C and C++ use the same basic file input and output functions to create, open, and close files. Language syntax: C and C++ have similar syntax and structure, which makes it easier for programmers to learn and adapt.

What is C C++ used for? ›

C++ (or “C-plus-plus”) is a generic programming language for building software. It's an object-oriented language. In other words, it emphasizes using data fields with unique attributes (a.k.a. objects) rather than logic or functions. A common example of an object is a user account on a website.

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