Annex A
(normative)
Predefined Language Environment
This
Annex contains the specifications of library units that shall be provided
by every implementation. There are three root library units: Ada, Interfaces,
and System; other library units are children of these:
Standard (...continued)
Ada (...continued)
Strings (...continued)
Hash — A.4.9
Hash_Case_Insensitive — A.4.9
Less_Case_Insensitive — A.4.10
Maps — A.4.2
Constants — A.4.6
Text_Buffers — A.4.12
Bounded — A.4.12
Unbounded — A.4.12
Unbounded — A.4.5
Equal_Case_Insensitive — A.4.10
Hash — A.4.9
Hash_Case_Insensitive — A.4.9
Less_Case_Insensitive — A.4.10
UTF_Encoding — A.4.11
Conversions — A.4.11
Strings — A.4.11
Wide_Strings — A.4.11
Wide_Wide_Strings — A.4.11
Wide_Bounded — A.4.7
Wide_Equal_Case_Insensitive
— A.4.7
Wide_Hash — A.4.7
Wide_Hash_Case_Insensitive — A.4.7
Wide_Equal_Case_Insensitive — A.4.7
Wide_Fixed — A.4.7
Wide_Equal_Case_Insensitive
— A.4.7
Wide_Hash — A.4.7
Wide_Hash_Case_Insensitive — A.4.7
Wide_Hash — A.4.7
Wide_Hash_Case_Insensitive — A.4.7
Wide_Maps — A.4.7
Wide_Constants — A.4.7
Wide_Unbounded — A.4.7
Wide_Equal_Case_Insensitive
— A.4.7
Wide_Hash — A.4.7
Wide_Hash_Case_Insensitive — A.4.7
Wide_Wide_Bounded — A.4.8
Wide_Wide_Equal_Case_Insensitive
— A.4.8
Wide_Wide_Hash — A.4.8
Wide_Wide_Hash_Case_Insensitive
— A.4.8
Standard (...continued)
Ada (...continued)
Strings (...continued)
Wide_Wide_Equal_Case_Insensitive
— A.4.8
Wide_Wide_Fixed — A.4.8
Wide_Wide_Equal_Case_Insensitive
— A.4.8
Wide_Wide_Hash — A.4.8
Wide_Wide_Hash_Case_Insensitive
— A.4.8
Wide_Wide_Hash — A.4.8
Wide_Wide_Hash_Case_Insensitive
— A.4.8
Wide_Wide_Maps — A.4.8
Wide_Wide_Constants — A.4.8
Wide_Wide_Unbounded — A.4.8
Wide_Wide_Equal_Case_Insensitive
— A.4.8
Wide_Wide_Hash — A.4.8
Wide_Wide_Hash_Case_Insensitive
— A.4.8
Synchronous_Barriers — D.10.1
Synchronous_Task_Control — D.10
EDF — D.10
Tags — 3.9
Generic_Dispatching_Constructor — 3.9
Task_Attributes — C.7.2
Task_Identification — C.7.1
Task_Termination — C.7.3
Text_IO — A.10.1
Bounded_IO — A.10.11
Complex_IO — G.1.3
Editing — F.3.3
Text_Streams — A.12.2
Unbounded_IO — A.10.12
Unchecked_Conversion — 13.9
Unchecked_Deallocate_Subpool — 13.11.5
Unchecked_Deallocation — 13.11.2
Wide_Characters — A.3.1
Handling — A.3.5
Wide_Command_Line — A.15.1
Wide_Directories — A.16.2
Wide_Environment_Variables — A.17.1
Standard (...continued)
Ada (...continued)
Wide_Text_IO — A.11
Complex_IO — G.1.4
Editing — F.3.4
Text_Streams — A.12.3
Wide_Bounded_IO — A.11
Wide_Unbounded_IO — A.11 Wide_Wide_Characters — A.3.1
Handling — A.3.6
Wide_Wide_Command_Line — A.15.1
Wide_Wide_Directories — A.16.2
Wide_Wide_Environment_Variables —
A.17.1
Wide_Wide_Text_IO — A.11
Complex_IO — G.1.5
Editing — F.3.5
Text_Streams — A.12.4
Wide_Wide_Bounded_IO — A.11
Wide_Wide_Unbounded_IO — A.11
Implementation Requirements
The implementation shall ensure that concurrent calls
on any two (possibly the same) language-defined subprograms perform as
specified, so long as all pairs of objects (one from each call) that
are either denoted by parameters that can be passed by reference, or
are designated by parameters of an access type, are nonoverlapping.
For the purpose of determining whether concurrent
calls on text input-output subprograms are required to perform as specified
above, when calling a subprogram within Text_IO or its children that
implicitly operates on one of the default input-output files, the subprogram
is considered to have a parameter of Current_Input or Current_Output
(as appropriate).
If a descendant of a language-defined tagged type
is declared, the implementation shall ensure that each inherited language-defined
subprogram behaves as described in this Reference Manual. In particular,
overriding a language-defined subprogram shall not alter the effect of
any inherited language-defined subprogram.
Implementation Permissions
The implementation may restrict the replacement of
language-defined compilation units. The implementation may restrict children
of language-defined library units (other than Standard).
Ada 2005 and 2012 Editions sponsored in part by Ada-Europe