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Tokens in C are the basic building blocks of a C program. There are six types of tokens: keywords, identifiers, constants, strings, operators and special symbols. Keywords are reserved words in C, such as “int” and “while”, that have a specific meaning. Identifiers are names given by the programmer to variables, functions, etc. Constants are values that do not change during the execution of a program, such as numbers or characters. Strings are sequences of characters enclosed in double quotes. Operators are symbols used to perform operations, such as “+” and “*”. Special symbols include punctuation marks, such as “,” and “;”.
Each token in a C program must be separated by white space, such as a space or a tab. The C compiler uses these tokens to identify the meaning and structure of the program. Understanding tokens is a crucial step in learning C programming.
C Programming for Beginners – Chapter 05 : Tokens in C
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