C language keywords:- Hello dear students if you are searching for C language keywords. keywords and their types| identifiers | printf,scanf,, you come on the true blog. c language full of keywords and functions.
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Hello friends today in this post . I tell you about C language keywords and their types, identifiers, and their functions and definitions with examples.

Table of Contents
what is the C language keywords ?
Keywords are the words hoes meaning has already been known to the compiler. there are 32 keywords in the C language.
keywords in c language
- Auto
- Char
- Break
- Case
- Constant
- Continue
- Default
- Do
- Double
- Else
- enuam
- extern
- float
- for
- goto
- if
- int
- long
- register
- return
- short
- signed
- size of
- static
- struct
- switch
- type def
- union
- unsigned
- void
- volatile
- while
Identifier: ANSI
rules for identifiers
American national standards institute c language)
- The first letter must be alphabet or
- The second character is allowed
- Only digit alphabet underscores are allowed not symbols allowed
- Keywords cannot be and use identifier Length 32 or more than.
Structure of C language program
- A c program consists of one or more functions.
- A function is a set of statements and variables. The statement specifies the computing operation table 10 and the variable holds the value of computation.
- Every c program must have a function man execution of a C program begins at the beginning of man.
- The main function is a special function used by C function tell the program.
*START every program must have exattly main function. If we used more than one function.
* The compiler can not tell which are mark the beginning of the program Main function has no argument.
# include<stdio.h>
The beginning of all programs that uses any input output library function.
printf
Printf is a pre-defined standard C function for printing output. It is a function that has already been written and compiled linked together. With our program.
The main function
The main function is a part of the C program. Permit different forms of the main statements are allowed. printf and scanf are functions defined in the standard library functions are defined in<stdio.h>
Scanf(“ “)
Which can read data from keywords and specify the address of the location where data is read. Basically scanf function is used for inputting data from the user.
Note. :- In C language everything is written in lowercase.
header file
The header file provides information to the compiler on the function and other values. We use it in our program. We need to # include<stdio.h> provides information of printf and scanf function.
library function
the beginning of all programs that use only input and output library functions.
#include<studio.h>
#include<conio.h>
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C language keywords summery
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