Define token in C++
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A token is the smallest element of a C++ program that is meaningful to the compiler. The C++ parser recognizes these kinds of tokens: Keywords. Identifiers. Numeric, Boolean and Pointer Literals.
A token is the smallest individual element of a program that is understood by a compiler. A token comprises the following:
Keywords – That contain a special meaning to the compiler
Identifiers – That hold a unique value/identity
Constants – That never change their value throughout the program
Strings – That contains the homogenous sequence of data
Special Symbols – They have some special meaning and cannot be used for another purpose; eg: [] () {}, ; * = #
Operators – Who perform operations on the operand