IDENTIFIERS


Identifiers, as the name suggests, are used to identify or refer to the names of variables, symbolic constants, functions and arrays. There are certain rules regarding identifier names, they are :


  • Identifier names must be a sequence of letters and digits and must begin with a letter.
  • The underscore character (_) is also permitted in identifiers. It is usually as a link between two words in long identifiers.
  • Names should not be the same as a keyword.
  • C is a case sensitive (i.e. upper and lower case letters are treated differently). Thus the names price, Price and PRICE denote different identifier.

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