Enumeration: Enumeration is a user-defined data type which consists of enumerators; the enumerators are used to represent integer constants. An enumeration can be defined by using the keyword “enum”. By default, the values of enumeration type are filled with “0” to “n” sequentially and those default values can be changed when declaring the enumeration. In a sequence of enumerators, if the first enumerator is assigned with a “user-defined value” and the next enumerator is not assigned with any value, then by default the next enumerator will be filled by the value “user-defined value of previous enumerator plus 1”. The type name of an enumeration is optional; if name of the enumeration type is not given then it is referred as “anonymous”. Syntax: Syntax to declare an enumerated data type is as follows, enum type_name {identifier_1, identifier_2, identifier_3, … identifier_n}; In the above syntax, “enum” is the keyword used to declare an enumerator. “type_name” refers the name of the type of the enumerator. “identier_1” to “identifier_n” are refers the list of the identifiers declared in the enumerator.

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Chapter 11.11, Problem 11.21CP

Program Plan Intro

Enumeration:

Enumeration is a user-defined data type which consists of enumerators; the enumerators are used to represent integer constants.

An enumeration can be defined by using the keyword “enum”.

By default, the values of enumeration type are filled with “0” to “n” sequentially and those default values can be changed when declaring the enumeration.

In a sequence of enumerators, if the first enumerator is assigned with a “user-defined value” and the next enumerator is not assigned with any value, then by default the next enumerator will be filled by the value “user-defined value of previous enumerator plus 1”.

The type name of an enumeration is optional; if name of the enumeration type is not given then it is referred as “anonymous”.

Syntax:

Syntax to declare an enumerated data type is as follows,

enum type_name {identifier_1, identifier_2, identifier_3, … identifier_n};

In the above syntax,

“enum” is the keyword used to declare an enumerator.

“type_name” refers the name of the type of the enumerator.

“identier_1” to “identifier_n” are refers the list of the identifiers declared in the enumerator.

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