In this article, I’m gonna discuss the Basic Syntax of the C Program in detail. Please read our previous article, where we discussed Environment Setup for C Program.
When we go to write any C Program there are a lot of concept come usually called basic syntax of c program which we need to understand in depth, because these tiny concepts make you perfect programmer.
let’s understand the concept of syntax of C Program.
Contents
Basic Syntax of C Program
Following are some concepts of C Program syntax:
Semicolon in C Program
Semicolon play very important role in C Program. In order to terminate each of the statement in C Program we use Semicolon (;).
Semicolon is the special symbol in C program used after each of the statement of the program in order to terminate the statement.
The Absence of semicolon after any statement my generate a compilation error so we have to be aware about this character.
Example:
#include <stdio.h>
int main() {
printf(“Hello, World!”)
return 0;
}
In above C Program I haven’t use semicolon after printf() function. so that the compiler wil notl consider next statement separately and we will get the compilation error as per the syntax rules.
Whitespace in C Program
Whitespace is also an another part of C program syntax. Whitespace refers to the space or tab before each of the statement. or words in a program statement
Whitespace is the term used in C to describe blanks, tabs, newline characters, and comments.
If we don’t use whitespace where program need, then it may generate compilation or execution error.
Whitespace separates one part of a statement from another and helps the compiler to identify where one element in a statement, such as an int, ends and the next element begins.
So, we need to take care of whitespace while writing a program. All programming languages strictly follow whitespaces.
Identifiers in C Programming Language
Identifiers basically refers to the name given to any variable, and function in a C Program.
Identifiers are sequence of characters, digits, and special characters.
In order to take name of any variable or function name we have to follow some syntax rules, are as follows:
- The first character must be an alphabet or underscore(_).
- No commas, blanks allow.
- No special symbol other than underscore is allowed.
- Variable names are case sensitive
- It should be less than 32 characters, which increases the portability in ANSI C.
Keywords in C Program
keywords are predefined reserved words in a programming language.
These keywords help us to use the functionality of C programming.
Due to C keywords special meaning we cannot be used them for other purpose.
Following total 32 keyword are there in C programming:
Tokens in C Program
A C program consists of various tokens. A token is either a keyword, an identifier, a constant, a string literal, or a symbol.
For example, the following C statement consists of 5 tokens:
printf(“Hello, World! \n“);
The Individual tokens are:
printf
(
“Hello, World! \n“
)
;
Comments in C Program
Comments are like helping text in your C progra. They are ignored by the compiler.
There are two type of comment in C Language:
- Single Line Comment
- Multi-Line Comment
A Single line comment is just writing double forward slashes before a statement, whereas Multiline Comment in c start with /* and terminate with the characters */.
Let’s have a look in below example:
// my first C program
/* my first C Program
with www.dheerajpatidar.com
*/
Conclusion
So In this article In have explained the Basic Syntax of C Programming Language and I hope you enjoy this Syntax of C Language article.
I will share you more articles in C Programming series, so keep in touch with this website regularly.
Thanks for Visit!
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