In many programming language, they have their own convention for getting the input from the user or sending the processed output to the user at the console. Similarly in C language we have this header file - "stdio.
Lets split the keyword into a small individual, So that we can bring a meaning to it later. The name of header file is "stdio. As discussed in the previous section section 1 , Header files do have many functions. Built-in C functions in respect of "stdio. There are couple of more Functions that are available in this Header file. Above mentioned are the common Built-In Functions for the same.
Under this Header we have few specific variables, which we can define them for the ease of programming in our implementing code. A variable that is specific to the library are called as "Library Variables". A macro is a small snippet of code that is given a name and an expression which performs a tiny task.
Syntax to define a macro is as follows,. Here define - is a preprocessor directive. Above are the common macros which are used, If we include "stdio. Finally we are at the end of this article up on the discussion of Basic of "stdio. Further more we can think of exploring each and every Built-in function, Library variable and the Macro of the header file "stdio. And it will expect an integer value from the main function.
That integer value represents the status of the program. That's why we declared main function return type as int. If any error in the program while execution, the main function will return some non-zero value to the operating system. If the program executed successfully without any error, It will return zero.
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Read more. Post your Learning Need Signup as a Tutor. Why we use 'include stdio. If you request to use a header file in the program by actually Hope this helps read less. Comments Dislike Bookmark. This is useful for getting the input from the user Keyboard and output result text to the monitor screen. With out this header file, one can not display the results to the users on the screen or cannot input the values through the keyb H is a file which contain declaration of many functions and Macros which required to get input from input devices and show output on output screen of C Program.
It is not compulsory to include "stdio. Which we can see later. Twinomujuni Amos 12 Apr. We use to 'include stdio. The header file just tells the compiler what types external functions and variables are, defines macros, types etc. Any functions and variables that get referenced in Any functions and variables that get referenced in your source file will be linked in during the linker phase.
If you include stdio. Some of the most commonly used pre-written functions are getc , putc , gets , puts , scanf , printf and also their file IO counter parts such as fputs , fgets , fprintf , fscanf , etc. This package also includes certain This package also includes certain special functions such as fflush and file IO related functions such as fopen , feof , fclose , ftell , fseek , fwrite , fread , etc. Most of the C programs include one or more of the above functions to achieve a given task.
Hence, it has to be included as a header file. Sridhar Achanta B. Without including this file, one will not be able to read input from keyboard or write output to screen.
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