Character Set
The character set in C language can be grouped into the following categories.
1. Letters
2. Digits
3. Special characters
4. White spaces
White spaces are ignored by the compiler until they are a part of string constant.White space may be used to separate words, but are strictly prohibited while using between characters of keywords or identifiers.
C Character-set table
Special Characters
Keywords and Identifiers
Every word in C language is a keyword or an identifier. Keywords in C language cannot be used as a variable name. They are specifically used by the compiler for own purpose and they serve as building blocks of a C program.
The following are the keyword set of C language.
Some compilers may have additional keywords.
Identifiers refers to the name of user-defined variables, array and functions. A variables should be essentially a sequence of letters and or digits and the variable name should begin with a character.
Both uppercase and lowercase letters letters are permitted. The underscore character is also permitted in identifiers.
The character set in C language can be grouped into the following categories.
1. Letters
2. Digits
3. Special characters
4. White spaces
White spaces are ignored by the compiler until they are a part of string constant.White space may be used to separate words, but are strictly prohibited while using between characters of keywords or identifiers.
C Character-set table
Special Characters
Keywords and Identifiers
Every word in C language is a keyword or an identifier. Keywords in C language cannot be used as a variable name. They are specifically used by the compiler for own purpose and they serve as building blocks of a C program.
The following are the keyword set of C language.
Some compilers may have additional keywords.
Identifiers refers to the name of user-defined variables, array and functions. A variables should be essentially a sequence of letters and or digits and the variable name should begin with a character.
Both uppercase and lowercase letters letters are permitted. The underscore character is also permitted in identifiers.
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