The smallest individual units in program are known as tokens. A C++ program is written using these tokens, white spaces and the syntax of the language. C++ has the following tokens. Keywords Identifiers Constants Strings Operators 1. Keywords: The keywords implement specific C++ language feature. They are explicitly reserved identifiers and can’t be used as names for the program variables or other user defined program elements. ISO C++ (C++98) Keywords • and• and_eq• asm• auto• bitand• bitor• bool• break• case• catch• char• c lass• compl• const• const_cast• continue• default• delete•…
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