C Keywords and Identifiers
Character set
Special Characters
C Keywords : 32 keywords
Identifiers/variables:
In C language identifiers is variables, functions and user data. its you can write what you want but it has some rule, you will be care:
1.An variable or identifiers can only this characters :-a-z , A-Z , 0-9, and underscore
2.The first character must be a-z , A-Z and underscore
3. Identifiers also sensitive.
4. Keywords are not allowed.
5. Semicolon, period, white spaces, slash or comma are permitted to be used.
Integers
An integer is a numbers
ex: int a=10;
specifiers %d
Floating
point Literals
ex: float a=10.34;
specifiers %f
Characters
ex: char ch='a';
specifiers %c
Double
point Literals
ex: double a=23.23232223232;
specifiers %lf
Escape Sequences
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