Annex contains descriptions of features of the language whose functionality
is largely redundant with other features defined by this International
Standard. Use of these features is not recommended in newly written programs.
Use of these features can be prevented by using
pragma Restrictions (No_Obsolescent_Features), see 13.12.1.
Ramification: These features are still
part of the language, and have to be implemented by conforming implementations.
The primary reason for putting these descriptions here is to get redundant
features out of the way of most readers. The designers of the next version
of Ada after Ada 95 will have to assess
whether or not it makes sense to drop these features from the language.
Wording Changes from Ada 83
features have been removed from the language, rather than declared to
- The package Low_Level_IO (see
- The Epsilon, Mantissa, Emax,
Small, Large, Safe_Emax, Safe_Small, and Safe_Large attributes of floating
point types (see A.5.3).
- The pragmas System_Name, Storage_Unit,
and Memory_Size (see 13.7).
- The pragma Shared (see C.6).
Implementations can continue to support the
above features for upward compatibility.
Wording Changes from Ada 95
A mention of the No_Obsolescent_Features restriction