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16.5.5 Data Types

Here is the command for data types:

@deftp category name attributes

The @deftp command is the generic definition command for data types. The command is written at the beginning of a line and is followed on the same line by the category, by the name of the type (which is a word like int or float), and then by names of attributes of objects of that type. Thus, you could use this command for describing int or float, in which case you could use data type as the category. (A data type is a category of certain objects for purposes of deciding which operations can be performed on them.)

In Lisp, for example, pair names a particular data type, and an object of that type has two slots called the CAR and the CDR. Here is how you would write the first line of a definition of pair.

@deftp {Data type} pair car cdr
@end deftp

The template is:

@deftp category name-of-type attributesbody-of-definition
@end deftp

@deftp creates an entry in the index of data types.

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