Version: 4.2.1
3.8 Enumerations and Masks
Although the constructors below are describes as procedures,they are implemented as syntax, so that error messages can report a type name where the syntactic context implies one.
Takes a list of symbols and generates an enumeration type. The
enumeration maps between the given symbols and integers,
counting from 0.
The list symbols can also set the values of symbols by putting '= and an exact integer after the symbol. For example, the list '(x y = 10 z) maps 'x to 0, 'y to 10, and 'z to 11.
The basetype argument specifies the base type to use.