After enumerated types ( enum s ) were added to the ANSI version of C ( 1989 ), many C programmers got used to defining their own Boolean types as such, for readability reasons.
22.
Fortran only has enumerated types for interoperability with C; hence, the semantics is similar to C and, as in C, the enum values are just integers and no further type check is done.
23.
By default, Swift does not expose pointers and other categories, often replacing former syntax with cleaner versions and allowing these concepts to be applied to other language structures, like enumerated types ( enums ).
24.
The enumerated type has distinct values, which can be compared and assigned, but which do not necessarily have any particular concrete representation in the computer's memory; compilers and interpreters can represent them arbitrarily.
25.
In standard arrays, each index is restricted to a certain range of consecutive integers ( or consecutive values of some enumerated type ), and the address of an element is computed by a " linear " formula on the indices.
26.
In some languages, the declaration of an enumerated type also intentionally defines an ordering of its members; in others, the enumerators are unordered; in others still, an implicit ordering arises from the compiler concretely representing enumerators as integers.
27.
In C, enums can be freely converted to and from ints, but in Pascal, the function ord ( ) must be used to convert from enumerated types to integers, and there is no function to convert from integer to enumerated types.
28.
In C, enums can be freely converted to and from ints, but in Pascal, the function ord ( ) must be used to convert from enumerated types to integers, and there is no function to convert from integer to enumerated types.
29.
In the most popular style, an exception is initiated by a special statement ( throw or raise ) with an exception object ( e . g . with Java or Object Pascal ) or a value of a special extendable enumerated type ( e . g . with Ada ).
30.
Only the following types can be marked volatile : all reference types, Single, Boolean, Byte, SByte, Int16, UInt16, Int32, UInt32, Char, and all enumerated types with an underlying type of Byte, SByte, Int16, UInt16, Int32, or UInt32.
