Tokens and White Spaces in CPP

Token and White Spaces in cpp

Token in cpp

A token is a language element that is used to form a statement. Cpp statement may consist of different tokens. Different types of token are as follows:

Keyword

Keyword is a word in C language that has predefined meaning and purpose. The meaning and purpose of keyword is defined by the developer of the language.

Example: For , Double, if ,while, do, else.

Identifiers

Identifiers is the name of a variable of function etc. it is also called user defined function.

Example: rbatec, item, counter.

Constant

Constant is a quantity that cannot be changed during execution of a program.

Example: 44 55 333 2

String Literals

 A collection of charecters written in double quotation is called string or string literal.

Example: “My name is bilal” “rbatec” .

Operators

Operation is a samble that performs some operation. It acts on different operands

Example: + - / %

Punctuation

Punctuation is symbols that is separate two tokens.

Example: [] () , ; : .

White Spaces

White spaces are used in program to increase readability. Different types of white spae include space ,tab and carriage return etc.C++ compiler ignores the white spaces. All statement of a program can be written on one line but it will be difficult to read. The white spaces makes source program more readable. A single statement can be written on two or more lines or order to increase readability but it will remain same for the compiler.