Definition, Functions and Types
In this post you will learn what is Compiler and what is its use? In simple words, Compiler is a type of computer program, which works to translate the code written in one programming language into another programming language.
Compiler makes the code written by us understandable to the computer. So that the computer can get help in providing proper output. To understand computer programming, it is very important to know the working methods of compiler and its features.
Let's first of all what is compiler? Know it in detail.
What is Compiler -
Compiler works to convert those languages into such structure which are really complex, and which are beyond the capability of computer to understand. If we understand it in simple words, it works to translate high level programming languages into low level programming languages.
It changes the structure of these languages with the help of machine tools. It is a software program that is used to translate languages. This is that technique of computer science. Which works for expansionism in the capacity and efficiency of computers. It usually translates human-readable code into machine-readable code.
Machine code is the code which is very difficult to write. It is almost impossible for every person to do this work. Even if someone writes this, it takes a lot of time. Compiler is such a software which is able to auto create it. Due to which there is a budget of time and there is also 0% chance of making a mistake in it.
Compiler is the invention of modern times, which simplifies the complexity of languages and works to change its structure and unit according to the computer. Due to which there is clarity in the objectives of the computer and its needs and functions and by which the objectives of its construction are fulfilled.
what is the function of the compiler
In general terms, the task of the compiler is to translate high level languages (source code) into machine language. It acts like a language translator. This is a great way to change the structure of the language. Due to which the work of expanding the field of computer is done. With the help of which the computer works in the best way.
If we understand it in detail, then as you know that there should be a programming language for the computer, which the computer can understand. The structure of the computer is built in the binary system, which is made up of 0 and 1.
The language of the binary system is understood as the machine language of the computer. Because computers are only capable of understanding these binary languages. Which we see as low level language.
The important task of translating these languages into machine languages is done by the compiler program only. It also has the function of copying, selecting or searching codes. So that the computer can get proper information about their location.
It does all its work systematically. Because of which cleanliness and clarity are seen in its works. It is the style of modern development that works to take the computer to a new height.
It is an important element of the utility of the computer, which often works to increase the utility of the computer. Due to which a person can save his time and complete his tasks in less time and can spend his other time to complete some other work.
Types of Compilers –
Following are the different types of compilers: -
- Single-pass compiler
- Two-pass compiler
- Multi-pass compiler
Single-pass Compiler
The function of a single-pass compiler is to read the program. It organizes all the phases of the compiler and works to bring uniformity in it. Single pass compiler also serves to store the output. By which he provides his process completely.
Two-pass Compiler
It works to organize all the phases of the compiler by dividing them into two parts. It divides the first four phases and the last two phases into separate parts. It plays an important role in the process of input and output. It helps him in the process of syntactical analysis.
Multi-pass Compiler
It works opposite to single pass compiler. It checks the above two passes in several stages and produces an output only after completing its checking. If we understand it in simple words, then it works to fulfill the deficiency left in the above 2 passes.
What are the six phases of compiler?
Compiler makes many changes in the structure of languages and their units. By which he makes appropriate changes in the language style according to the modern needs. The compiler completes its work through these six steps. By which he works to convert high level language into low level language, which are as follows –
(1) Lexical analysis: This is the first step in the compiler's process. Under which it works to provide serial number to different words. It divides each unit of high-level languages into tokens. It also works to remove useless spaces and blank pages.
(2) Syntax analysis: This is the most important step of the compiler. In which it examines the functions of Lexical analysis. It examines his works in terms of grammatical correctness. It works by selecting the error pages and showing them.
(3) Semantic analysis: It does the work of finding the logical error and solving that problem. It does the work of correcting the input tasks by command and modification in its working system.
(4) Intermediate code generator: This face of the compiler is also very important. It serves to provide an organized form to all the above phases. It works to convert all their functions into 3 address codes. So that their works can be brought to work for the purposes of their construction.
(5) Code optimizer: When the intermediate code generator completes its work, that is, when it generates 3 Address Codes. So, it works to optimize those codes. That is, it serves to display their expansionism in a subtle way. Through which it can be easy to read and understand.
(6) Code generation: After that it generates the code and completes it. After the end of which the work of the compiler is completed, in simple words, if we say, this last step converts the high-level language into machine language. Which helps the computer to understand and can be easily read and understood as a low-level language.
Conclusion
Compiler is the result of the development of computer which works to expand the efficiency of computer and its field. It provides programming languages with a form of coding that can be easily read and understood by computers and humans. Through its programming, a person is easily able to do input and output commands.
Generally it is used to change the structure of languages. So that the speed of computer development can be accelerated. It completes its work in less time. Due to which time is saved and at the same time there is ease in its use. Because of which you and we can easily understand and read the language of computer.
Hopefully, this post “What is Compiler and what is its use?” Through this you must have come to know about this important computer program. If you have any question or suggestion related to this post then please let us know in the comment section below.
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