Why c over c

But despite that, there are plenty of reasons to believe that C programming will remain active for a long time. In programming languages one size does not fit all. C is almost a portable assembly language. It is as close to the machine as possible while it is almost universally available for existing processor architectures.

There is at least one C compiler for almost every existent architecture. It is even used by compilers for other languages to communicate with the machine. For example, C is the intermediate language underlying Eiffel and Forth. This means that, instead of generating machine code for every architecture to be supported, compilers for those languages just generate intermediate C code, and the C compiler handles the machine code generation.

C has also become a lingua franca for communicating between developers. C is a great language for expressing common ideas in programming in a way that most people are comfortable with. Arbitrary memory address access and pointer arithmetic is an important feature that makes C a perfect fit for system programming operating systems and embedded systems.

System applications must read and write to those custom memory locations to communicate with the world. In other words: write the value of variable byte to memory address 0x In this line, we perform a bitwise OR operation on the value at address 0x and the value 0x08 in binary, i. In other words: we set bit 4 of the byte that is at address 0x We also declare that the value at address 0x is volatile.

In this case, this bit is unset by the UART hardware just after we set it by software. If we did this inside a for loop, for example, without specifying that the value is volatile, the compiler might assume this value never changes after being set, and skip executing the command after the first loop.

A common language feature that system programming cannot rely on is garbage collection, or even just dynamic allocation for some embedded systems. Embedded applications are very limited in time and memory resources. They are often used for real-time systems , where a non-deterministic call to the garbage collector cannot be afforded. And if dynamic allocation cannot be used because of the lack of memory, it is very important to have other mechanisms of memory management, like placing data in custom addresses, as C pointers allow.

C has a very small runtime. And the memory footprint for its code is smaller than for most other languages. One of the main causes for that is exceptions support. Methods of A , B and C classes are defined somewhere else for example in other files. Therefore the compiler cannot analyze them and cannot know if they will throw exceptions. So it must prepare to handle exceptions thrown from any of their constructors, destructors, or other method calls.

Destructors should not throw very bad practice , but the user could throw anyway, or they could throw indirectly by calling some function or method explicitly or implicitly that throws an exception. If any of the calls in myFunction throw an exception, the stack unwinding mechanism must be able to call all the destructors for the objects that were already constructed.

It does this by making use of an auxiliary autogenerated function a kind of look-up table that will be used for stack unwinding in case an exception is thrown from the body of that function, which will be similar to this:.

If the exception is thrown from checkpoints 1 and 9, no object needs destruction. Easy Normal Medium Hard Expert. Writing code in comment?

Please use ide. Load Comments. What's New. Most popular in C Language. Sign in. Career Development. What is C programming? How C programming is used. In IoT, also known as the "Internet of things," applications Compiler development When developing the operating system used on a desktop or smartphone To develop and build databases For developing Internet browsers as well as their extensions To develop creative applications, such as photography and graphic design tools, as well as desktop and system applications In embedded systems.

Benefits of learning C programming. It will help you understand how a computer works. Most programming languages can interface with it.

You'll be able to work on open-source projects. It will be easier to learn other programming languages.

The structure simplifies testing and debugging. It is an efficient programming language. How C programs work. Additional C programming resources. C is a general-purpose programming language with more emphasis on system programming. Hence, it is excellent for embedded systems. C allows calling the main function through other functions used in the code. A structure is much similar to a class in several aspects.

However, the main distinction lies between the two in terms of the default access level. Every functionality that is supported by a class is also supported by a struct. Methods are used in the same way for a structure as they are used for a class.

However, it is not possible to define a function within a structure in the C programming language. Check out differences between structures and union in C. It is mandatory to declare variables at the beginning of the function in a C program. The C programming language allows multiple declarations to be made of global variables. Any function that is a member function and declared within a base class is overridden by a derived class is called a virtual function.

The main purpose of virtual functions is to achieve runtime polymorphism. For making any function virtual, the virtual keyword is used. A friend function belonging to a class is one that is defined outside its scope but has the privilege to access all private and protected members of the class. Though prototypes of friend functions appear in the class definition, they are not member functions.

In addition to a function, a friend function can be a function template, member function, class, or class template. In order to make a function a friend function, the function prototype in the class definition is preceded with the keyword friend.

Both of them are among the leading options for making a great living from programming. Or is there something factually incorrect in the article? Share your views via the dedicated comment window below. My name is Vijay Singh Khatri, and I enjoy meeting new people and finding ways to help them have an uplifting experience. I have had a variety of customer service opportunities, through which I was able to have fewer returned products and increased repeat customers, when compared with co-workers.

Currently working with hackr. In order not to leave regrets and regrets in life, we should try our best to seize all opportunities to change our lives. There's so many mistakes in this article it's not even worth enumerating. Take this down at once before a beginner reads it. Bad Article, a lot of typos, very misleading phrases, wrong Information provided to us by a customer service agent. Article should be flagged as personal opinion and not as an actual fact related article.

This is something that belongs on a private Blog. And even then Great article. Too bad its more opinion than fact. The article states that 1. I don't think so. Java strings are immutable. For example, one might define a type and then if and when the need arises, define sub-types. C is top down.