From: squirek <squi...@adacore.com>

The patch implements the experimental feature to allow use package
clauses within the context area to imply with.

gcc/ada/ChangeLog:

        * doc/gnat_rm/gnat_language_extensions.rst: Add documentation.
        * gnat_rm.texi: Regenerate.

Tested on x86_64-pc-linux-gnu, committed on master.

---
 .../doc/gnat_rm/gnat_language_extensions.rst  |  16 +++
 gcc/ada/gnat_rm.texi                          | 133 ++++++++++--------
 2 files changed, 92 insertions(+), 57 deletions(-)

diff --git a/gcc/ada/doc/gnat_rm/gnat_language_extensions.rst 
b/gcc/ada/doc/gnat_rm/gnat_language_extensions.rst
index ee2df668eb1..1713f56be3b 100644
--- a/gcc/ada/doc/gnat_rm/gnat_language_extensions.rst
+++ b/gcc/ada/doc/gnat_rm/gnat_language_extensions.rst
@@ -657,6 +657,22 @@ An exception message can also be added:
         when Imported_C_Func /= 0;
    end;
 
+Implicit With
+-------------
+
+This feature allows a standalone ``use`` clause in the context clause of a
+compilation unit to imply an implicit ``with`` of the same library unit where
+an equivalent ``with`` clause would be allowed.
+
+.. code-block:: ada
+
+   use Ada.Text_IO;
+   procedure Main is
+   begin
+      Put_Line ("Hello");
+   end;
+
+
 Storage Model
 -------------
 
diff --git a/gcc/ada/gnat_rm.texi b/gcc/ada/gnat_rm.texi
index 5719d0d3e62..5ec090f2669 100644
--- a/gcc/ada/gnat_rm.texi
+++ b/gcc/ada/gnat_rm.texi
@@ -916,6 +916,7 @@ Deep delta Aggregates
 Experimental Language Extensions
 
 * Conditional when constructs:: 
+* Implicit With:: 
 * Storage Model:: 
 * Attribute Super:: 
 * Simpler Accessibility Model:: 
@@ -29896,6 +29897,7 @@ Features activated via @code{-gnatX0} or
 
 @menu
 * Conditional when constructs:: 
+* Implicit With:: 
 * Storage Model:: 
 * Attribute Super:: 
 * Simpler Accessibility Model:: 
@@ -29909,7 +29911,7 @@ Features activated via @code{-gnatX0} or
 
 @end menu
 
-@node Conditional when constructs,Storage Model,,Experimental Language 
Extensions
+@node Conditional when constructs,Implicit With,,Experimental Language 
Extensions
 @anchor{gnat_rm/gnat_language_extensions 
conditional-when-constructs}@anchor{455}
 @subsection Conditional when constructs
 
@@ -29978,8 +29980,25 @@ begin
 end;
 @end example
 
-@node Storage Model,Attribute Super,Conditional when constructs,Experimental 
Language Extensions
-@anchor{gnat_rm/gnat_language_extensions storage-model}@anchor{456}
+@node Implicit With,Storage Model,Conditional when constructs,Experimental 
Language Extensions
+@anchor{gnat_rm/gnat_language_extensions implicit-with}@anchor{456}
+@subsection Implicit With
+
+
+This feature allows a standalone @code{use} clause in the context clause of a
+compilation unit to imply an implicit @code{with} of the same library unit 
where
+an equivalent @code{with} clause would be allowed.
+
+@example
+use Ada.Text_IO;
+procedure Main is
+begin
+   Put_Line ("Hello");
+end;
+@end example
+
+@node Storage Model,Attribute Super,Implicit With,Experimental Language 
Extensions
+@anchor{gnat_rm/gnat_language_extensions storage-model}@anchor{457}
 @subsection Storage Model
 
 
@@ -29996,7 +30015,7 @@ memory models, in particular to support interactions 
with GPU.
 @end menu
 
 @node Aspect Storage_Model_Type,Aspect Designated_Storage_Model,,Storage Model
-@anchor{gnat_rm/gnat_language_extensions aspect-storage-model-type}@anchor{457}
+@anchor{gnat_rm/gnat_language_extensions aspect-storage-model-type}@anchor{458}
 @subsubsection Aspect Storage_Model_Type
 
 
@@ -30130,7 +30149,7 @@ end CUDA_Memory;
 @end example
 
 @node Aspect Designated_Storage_Model,Legacy Storage Pools,Aspect 
Storage_Model_Type,Storage Model
-@anchor{gnat_rm/gnat_language_extensions 
aspect-designated-storage-model}@anchor{458}
+@anchor{gnat_rm/gnat_language_extensions 
aspect-designated-storage-model}@anchor{459}
 @subsubsection Aspect Designated_Storage_Model
 
 
@@ -30208,7 +30227,7 @@ begin
 @end example
 
 @node Legacy Storage Pools,,Aspect Designated_Storage_Model,Storage Model
-@anchor{gnat_rm/gnat_language_extensions legacy-storage-pools}@anchor{459}
+@anchor{gnat_rm/gnat_language_extensions legacy-storage-pools}@anchor{45a}
 @subsubsection Legacy Storage Pools
 
 
@@ -30259,7 +30278,7 @@ type Acc is access Integer_Array with Storage_Pool => 
My_Pool;
 can still be accepted as a shortcut for the new syntax.
 
 @node Attribute Super,Simpler Accessibility Model,Storage Model,Experimental 
Language Extensions
-@anchor{gnat_rm/gnat_language_extensions attribute-super}@anchor{45a}
+@anchor{gnat_rm/gnat_language_extensions attribute-super}@anchor{45b}
 @subsection Attribute Super
 
 
@@ -30294,7 +30313,7 @@ end;
 @end example
 
 @node Simpler Accessibility Model,Case pattern matching,Attribute 
Super,Experimental Language Extensions
-@anchor{gnat_rm/gnat_language_extensions 
simpler-accessibility-model}@anchor{45b}
+@anchor{gnat_rm/gnat_language_extensions 
simpler-accessibility-model}@anchor{45c}
 @subsection Simpler Accessibility Model
 
 
@@ -30325,7 +30344,7 @@ All of the refined rules are compatible with the [use 
of anonymous access types
 @end menu
 
 @node Stand-alone objects,Subprogram parameters,,Simpler Accessibility Model
-@anchor{gnat_rm/gnat_language_extensions stand-alone-objects}@anchor{45c}
+@anchor{gnat_rm/gnat_language_extensions stand-alone-objects}@anchor{45d}
 @subsubsection Stand-alone objects
 
 
@@ -30373,7 +30392,7 @@ of the RM 4.6 rule “The accessibility level of the 
operand type shall not be
 statically deeper than that of the target type …”.
 
 @node Subprogram parameters,Function results,Stand-alone objects,Simpler 
Accessibility Model
-@anchor{gnat_rm/gnat_language_extensions subprogram-parameters}@anchor{45d}
+@anchor{gnat_rm/gnat_language_extensions subprogram-parameters}@anchor{45e}
 @subsubsection Subprogram parameters
 
 
@@ -30466,7 +30485,7 @@ end;
 @end example
 
 @node Function results,,Subprogram parameters,Simpler Accessibility Model
-@anchor{gnat_rm/gnat_language_extensions function-results}@anchor{45e}
+@anchor{gnat_rm/gnat_language_extensions function-results}@anchor{45f}
 @subsubsection Function results
 
 
@@ -30594,7 +30613,7 @@ end;
 @end example
 
 @node Case pattern matching,Mutably Tagged Types with Size’Class 
Aspect,Simpler Accessibility Model,Experimental Language Extensions
-@anchor{gnat_rm/gnat_language_extensions case-pattern-matching}@anchor{45f}
+@anchor{gnat_rm/gnat_language_extensions case-pattern-matching}@anchor{460}
 @subsection Case pattern matching
 
 
@@ -30724,7 +30743,7 @@ message generated in such cases is usually “Capacity 
exceeded in compiling
 case statement with composite selector type”.
 
 @node Mutably Tagged Types with Size’Class Aspect,Generalized 
Finalization,Case pattern matching,Experimental Language Extensions
-@anchor{gnat_rm/gnat_language_extensions 
mutably-tagged-types-with-size-class-aspect}@anchor{460}
+@anchor{gnat_rm/gnat_language_extensions 
mutably-tagged-types-with-size-class-aspect}@anchor{461}
 @subsection Mutably Tagged Types with Size’Class Aspect
 
 
@@ -30855,7 +30874,7 @@ parameter exists (that is, before leaving the 
corresponding callable
 construct).
 
 @node Generalized Finalization,No_Raise aspect,Mutably Tagged Types with 
Size’Class Aspect,Experimental Language Extensions
-@anchor{gnat_rm/gnat_language_extensions generalized-finalization}@anchor{461}
+@anchor{gnat_rm/gnat_language_extensions generalized-finalization}@anchor{462}
 @subsection Generalized Finalization
 
 
@@ -30926,7 +30945,7 @@ hence `not' be deallocated either. The result is simply 
that memory will be
 leaked in those cases.
 
 @item 
-The @code{Finalize} procedure should have have the @ref{462,,No_Raise aspect} 
specified.
+The @code{Finalize} procedure should have have the @ref{463,,No_Raise aspect} 
specified.
 If that’s not the case, a compilation error will be raised.
 @end itemize
 
@@ -30946,7 +30965,7 @@ heap-allocated objects
 @end itemize
 
 @node No_Raise aspect,Inference of Dependent Types in Generic 
Instantiations,Generalized Finalization,Experimental Language Extensions
-@anchor{gnat_rm/gnat_language_extensions 
id3}@anchor{463}@anchor{gnat_rm/gnat_language_extensions 
no-raise-aspect}@anchor{462}
+@anchor{gnat_rm/gnat_language_extensions 
id3}@anchor{464}@anchor{gnat_rm/gnat_language_extensions 
no-raise-aspect}@anchor{463}
 @subsection No_Raise aspect
 
 
@@ -30963,7 +30982,7 @@ this subprogram, @code{Program_Error} is raised.
 @end menu
 
 @node New specification for Ada Finalization Controlled,Finalized tagged 
types,,No_Raise aspect
-@anchor{gnat_rm/gnat_language_extensions 
new-specification-for-ada-finalization-controlled}@anchor{464}
+@anchor{gnat_rm/gnat_language_extensions 
new-specification-for-ada-finalization-controlled}@anchor{465}
 @subsubsection New specification for @code{Ada.Finalization.Controlled}
 
 
@@ -31030,7 +31049,7 @@ private
 @end example
 
 @node Finalized tagged types,Composite types,New specification for Ada 
Finalization Controlled,No_Raise aspect
-@anchor{gnat_rm/gnat_language_extensions finalized-tagged-types}@anchor{465}
+@anchor{gnat_rm/gnat_language_extensions finalized-tagged-types}@anchor{466}
 @subsubsection Finalized tagged types
 
 
@@ -31043,7 +31062,7 @@ However note that for simplicity, it is forbidden to 
change the value of any of
 those new aspects in derived types.
 
 @node Composite types,Interoperability with controlled types,Finalized tagged 
types,No_Raise aspect
-@anchor{gnat_rm/gnat_language_extensions composite-types}@anchor{466}
+@anchor{gnat_rm/gnat_language_extensions composite-types}@anchor{467}
 @subsubsection Composite types
 
 
@@ -31060,7 +31079,7 @@ are called on the composite object, but @code{Finalize} 
is  called on the compos
 object first.
 
 @node Interoperability with controlled types,,Composite types,No_Raise aspect
-@anchor{gnat_rm/gnat_language_extensions 
interoperability-with-controlled-types}@anchor{467}
+@anchor{gnat_rm/gnat_language_extensions 
interoperability-with-controlled-types}@anchor{468}
 @subsubsection Interoperability with controlled types
 
 
@@ -31081,7 +31100,7 @@ component
 @end itemize
 
 @node Inference of Dependent Types in Generic 
Instantiations,External_Initialization Aspect,No_Raise aspect,Experimental 
Language Extensions
-@anchor{gnat_rm/gnat_language_extensions 
inference-of-dependent-types-in-generic-instantiations}@anchor{468}
+@anchor{gnat_rm/gnat_language_extensions 
inference-of-dependent-types-in-generic-instantiations}@anchor{469}
 @subsection Inference of Dependent Types in Generic Instantiations
 
 
@@ -31158,7 +31177,7 @@ package Int_Array_Operations is new Array_Operations
 @end example
 
 @node External_Initialization Aspect,Finally construct,Inference of Dependent 
Types in Generic Instantiations,Experimental Language Extensions
-@anchor{gnat_rm/gnat_language_extensions 
external-initialization-aspect}@anchor{469}
+@anchor{gnat_rm/gnat_language_extensions 
external-initialization-aspect}@anchor{46a}
 @subsection External_Initialization Aspect
 
 
@@ -31199,7 +31218,7 @@ The maximum size of loaded files is limited to 2@w{^31} 
bytes.
 @end cartouche
 
 @node Finally construct,,External_Initialization Aspect,Experimental Language 
Extensions
-@anchor{gnat_rm/gnat_language_extensions finally-construct}@anchor{46a}
+@anchor{gnat_rm/gnat_language_extensions finally-construct}@anchor{46b}
 @subsection Finally construct
 
 
@@ -31216,7 +31235,7 @@ This feature is similar to the one with the same name 
in other languages such as
 @end menu
 
 @node Syntax<2>,Legality Rules<2>,,Finally construct
-@anchor{gnat_rm/gnat_language_extensions id4}@anchor{46b}
+@anchor{gnat_rm/gnat_language_extensions id4}@anchor{46c}
 @subsubsection Syntax
 
 
@@ -31231,7 +31250,7 @@ handled_sequence_of_statements ::=
 @end example
 
 @node Legality Rules<2>,Dynamic Semantics<2>,Syntax<2>,Finally construct
-@anchor{gnat_rm/gnat_language_extensions id5}@anchor{46c}
+@anchor{gnat_rm/gnat_language_extensions id5}@anchor{46d}
 @subsubsection Legality Rules
 
 
@@ -31241,7 +31260,7 @@ to be transferred outside the finally part are 
forbidden.
 Goto & exit where the target is outside of the finally’s 
@code{sequence_of_statements} are forbidden
 
 @node Dynamic Semantics<2>,,Legality Rules<2>,Finally construct
-@anchor{gnat_rm/gnat_language_extensions id6}@anchor{46d}
+@anchor{gnat_rm/gnat_language_extensions id6}@anchor{46e}
 @subsubsection Dynamic Semantics
 
 
@@ -31256,7 +31275,7 @@ execution, that is the finally block must be executed 
in full even if the contai
 aborted, or if the control is transferred out of the block.
 
 @node Security Hardening Features,Obsolescent Features,GNAT language 
extensions,Top
-@anchor{gnat_rm/security_hardening_features 
doc}@anchor{46e}@anchor{gnat_rm/security_hardening_features 
id1}@anchor{46f}@anchor{gnat_rm/security_hardening_features 
security-hardening-features}@anchor{15}
+@anchor{gnat_rm/security_hardening_features 
doc}@anchor{46f}@anchor{gnat_rm/security_hardening_features 
id1}@anchor{470}@anchor{gnat_rm/security_hardening_features 
security-hardening-features}@anchor{15}
 @chapter Security Hardening Features
 
 
@@ -31278,7 +31297,7 @@ change.
 @end menu
 
 @node Register Scrubbing,Stack Scrubbing,,Security Hardening Features
-@anchor{gnat_rm/security_hardening_features register-scrubbing}@anchor{470}
+@anchor{gnat_rm/security_hardening_features register-scrubbing}@anchor{471}
 @section Register Scrubbing
 
 
@@ -31314,7 +31333,7 @@ programming languages, see @cite{Using the GNU Compiler 
Collection (GCC)}.
 @c Stack Scrubbing:
 
 @node Stack Scrubbing,Hardened Conditionals,Register Scrubbing,Security 
Hardening Features
-@anchor{gnat_rm/security_hardening_features stack-scrubbing}@anchor{471}
+@anchor{gnat_rm/security_hardening_features stack-scrubbing}@anchor{472}
 @section Stack Scrubbing
 
 
@@ -31458,7 +31477,7 @@ Bar_Callable_Ptr.
 @c Hardened Conditionals:
 
 @node Hardened Conditionals,Hardened Booleans,Stack Scrubbing,Security 
Hardening Features
-@anchor{gnat_rm/security_hardening_features hardened-conditionals}@anchor{472}
+@anchor{gnat_rm/security_hardening_features hardened-conditionals}@anchor{473}
 @section Hardened Conditionals
 
 
@@ -31548,7 +31567,7 @@ be used with other programming languages supported by 
GCC.
 @c Hardened Booleans:
 
 @node Hardened Booleans,Control Flow Redundancy,Hardened Conditionals,Security 
Hardening Features
-@anchor{gnat_rm/security_hardening_features hardened-booleans}@anchor{473}
+@anchor{gnat_rm/security_hardening_features hardened-booleans}@anchor{474}
 @section Hardened Booleans
 
 
@@ -31609,7 +31628,7 @@ and more details on that attribute, see @cite{Using the 
GNU Compiler Collection
 @c Control Flow Redundancy:
 
 @node Control Flow Redundancy,,Hardened Booleans,Security Hardening Features
-@anchor{gnat_rm/security_hardening_features 
control-flow-redundancy}@anchor{474}
+@anchor{gnat_rm/security_hardening_features 
control-flow-redundancy}@anchor{475}
 @section Control Flow Redundancy
 
 
@@ -31777,7 +31796,7 @@ see @cite{Using the GNU Compiler Collection (GCC)}.  
These options
 can be used with other programming languages supported by GCC.
 
 @node Obsolescent Features,Compatibility and Porting Guide,Security Hardening 
Features,Top
-@anchor{gnat_rm/obsolescent_features 
doc}@anchor{475}@anchor{gnat_rm/obsolescent_features 
id1}@anchor{476}@anchor{gnat_rm/obsolescent_features 
obsolescent-features}@anchor{16}
+@anchor{gnat_rm/obsolescent_features 
doc}@anchor{476}@anchor{gnat_rm/obsolescent_features 
id1}@anchor{477}@anchor{gnat_rm/obsolescent_features 
obsolescent-features}@anchor{16}
 @chapter Obsolescent Features
 
 
@@ -31796,7 +31815,7 @@ compatibility purposes.
 @end menu
 
 @node pragma No_Run_Time,pragma Ravenscar,,Obsolescent Features
-@anchor{gnat_rm/obsolescent_features 
id2}@anchor{477}@anchor{gnat_rm/obsolescent_features 
pragma-no-run-time}@anchor{478}
+@anchor{gnat_rm/obsolescent_features 
id2}@anchor{478}@anchor{gnat_rm/obsolescent_features 
pragma-no-run-time}@anchor{479}
 @section pragma No_Run_Time
 
 
@@ -31809,7 +31828,7 @@ preferred usage is to use an appropriately configured 
run-time that
 includes just those features that are to be made accessible.
 
 @node pragma Ravenscar,pragma Restricted_Run_Time,pragma 
No_Run_Time,Obsolescent Features
-@anchor{gnat_rm/obsolescent_features 
id3}@anchor{479}@anchor{gnat_rm/obsolescent_features 
pragma-ravenscar}@anchor{47a}
+@anchor{gnat_rm/obsolescent_features 
id3}@anchor{47a}@anchor{gnat_rm/obsolescent_features 
pragma-ravenscar}@anchor{47b}
 @section pragma Ravenscar
 
 
@@ -31818,7 +31837,7 @@ The pragma @code{Ravenscar} has exactly the same effect 
as pragma
 is part of the new Ada 2005 standard.
 
 @node pragma Restricted_Run_Time,pragma Task_Info,pragma Ravenscar,Obsolescent 
Features
-@anchor{gnat_rm/obsolescent_features 
id4}@anchor{47b}@anchor{gnat_rm/obsolescent_features 
pragma-restricted-run-time}@anchor{47c}
+@anchor{gnat_rm/obsolescent_features 
id4}@anchor{47c}@anchor{gnat_rm/obsolescent_features 
pragma-restricted-run-time}@anchor{47d}
 @section pragma Restricted_Run_Time
 
 
@@ -31828,7 +31847,7 @@ preferred since the Ada 2005 pragma @code{Profile} is 
intended for
 this kind of implementation dependent addition.
 
 @node pragma Task_Info,package System Task_Info s-tasinf ads,pragma 
Restricted_Run_Time,Obsolescent Features
-@anchor{gnat_rm/obsolescent_features 
id5}@anchor{47d}@anchor{gnat_rm/obsolescent_features 
pragma-task-info}@anchor{47e}
+@anchor{gnat_rm/obsolescent_features 
id5}@anchor{47e}@anchor{gnat_rm/obsolescent_features 
pragma-task-info}@anchor{47f}
 @section pragma Task_Info
 
 
@@ -31854,7 +31873,7 @@ in the spec of package System.Task_Info in the runtime
 library.
 
 @node package System Task_Info s-tasinf ads,,pragma Task_Info,Obsolescent 
Features
-@anchor{gnat_rm/obsolescent_features 
package-system-task-info}@anchor{47f}@anchor{gnat_rm/obsolescent_features 
package-system-task-info-s-tasinf-ads}@anchor{480}
+@anchor{gnat_rm/obsolescent_features 
package-system-task-info}@anchor{480}@anchor{gnat_rm/obsolescent_features 
package-system-task-info-s-tasinf-ads}@anchor{481}
 @section package System.Task_Info (@code{s-tasinf.ads})
 
 
@@ -31864,7 +31883,7 @@ to support the @code{Task_Info} pragma. The predefined 
Ada package
 standard replacement for GNAT’s @code{Task_Info} functionality.
 
 @node Compatibility and Porting Guide,GNU Free Documentation 
License,Obsolescent Features,Top
-@anchor{gnat_rm/compatibility_and_porting_guide 
doc}@anchor{481}@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-and-porting-guide}@anchor{17}@anchor{gnat_rm/compatibility_and_porting_guide
 id1}@anchor{482}
+@anchor{gnat_rm/compatibility_and_porting_guide 
doc}@anchor{482}@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-and-porting-guide}@anchor{17}@anchor{gnat_rm/compatibility_and_porting_guide
 id1}@anchor{483}
 @chapter Compatibility and Porting Guide
 
 
@@ -31886,7 +31905,7 @@ applications developed in other Ada environments.
 @end menu
 
 @node Writing Portable Fixed-Point Declarations,Compatibility with Ada 
83,,Compatibility and Porting Guide
-@anchor{gnat_rm/compatibility_and_porting_guide 
id2}@anchor{483}@anchor{gnat_rm/compatibility_and_porting_guide 
writing-portable-fixed-point-declarations}@anchor{484}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id2}@anchor{484}@anchor{gnat_rm/compatibility_and_porting_guide 
writing-portable-fixed-point-declarations}@anchor{485}
 @section Writing Portable Fixed-Point Declarations
 
 
@@ -32008,7 +32027,7 @@ If you follow this scheme you will be guaranteed that 
your fixed-point
 types will be portable.
 
 @node Compatibility with Ada 83,Compatibility between Ada 95 and Ada 
2005,Writing Portable Fixed-Point Declarations,Compatibility and Porting Guide
-@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-with-ada-83}@anchor{485}@anchor{gnat_rm/compatibility_and_porting_guide
 id3}@anchor{486}
+@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-with-ada-83}@anchor{486}@anchor{gnat_rm/compatibility_and_porting_guide
 id3}@anchor{487}
 @section Compatibility with Ada 83
 
 
@@ -32036,7 +32055,7 @@ following subsections treat the most likely issues to 
be encountered.
 @end menu
 
 @node Legal Ada 83 programs that are illegal in Ada 95,More deterministic 
semantics,,Compatibility with Ada 83
-@anchor{gnat_rm/compatibility_and_porting_guide 
id4}@anchor{487}@anchor{gnat_rm/compatibility_and_porting_guide 
legal-ada-83-programs-that-are-illegal-in-ada-95}@anchor{488}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id4}@anchor{488}@anchor{gnat_rm/compatibility_and_porting_guide 
legal-ada-83-programs-that-are-illegal-in-ada-95}@anchor{489}
 @subsection Legal Ada 83 programs that are illegal in Ada 95
 
 
@@ -32136,7 +32155,7 @@ the fix is usually simply to add the @code{(<>)} to the 
generic declaration.
 @end itemize
 
 @node More deterministic semantics,Changed semantics,Legal Ada 83 programs 
that are illegal in Ada 95,Compatibility with Ada 83
-@anchor{gnat_rm/compatibility_and_porting_guide 
id5}@anchor{489}@anchor{gnat_rm/compatibility_and_porting_guide 
more-deterministic-semantics}@anchor{48a}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id5}@anchor{48a}@anchor{gnat_rm/compatibility_and_porting_guide 
more-deterministic-semantics}@anchor{48b}
 @subsection More deterministic semantics
 
 
@@ -32164,7 +32183,7 @@ which open select branches are executed.
 @end itemize
 
 @node Changed semantics,Other language compatibility issues,More deterministic 
semantics,Compatibility with Ada 83
-@anchor{gnat_rm/compatibility_and_porting_guide 
changed-semantics}@anchor{48b}@anchor{gnat_rm/compatibility_and_porting_guide 
id6}@anchor{48c}
+@anchor{gnat_rm/compatibility_and_porting_guide 
changed-semantics}@anchor{48c}@anchor{gnat_rm/compatibility_and_porting_guide 
id6}@anchor{48d}
 @subsection Changed semantics
 
 
@@ -32206,7 +32225,7 @@ covers only the restricted range.
 @end itemize
 
 @node Other language compatibility issues,,Changed semantics,Compatibility 
with Ada 83
-@anchor{gnat_rm/compatibility_and_porting_guide 
id7}@anchor{48d}@anchor{gnat_rm/compatibility_and_porting_guide 
other-language-compatibility-issues}@anchor{48e}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id7}@anchor{48e}@anchor{gnat_rm/compatibility_and_porting_guide 
other-language-compatibility-issues}@anchor{48f}
 @subsection Other language compatibility issues
 
 
@@ -32239,7 +32258,7 @@ include @code{pragma Interface} and the floating point 
type attributes
 @end itemize
 
 @node Compatibility between Ada 95 and Ada 2005,Implementation-dependent 
characteristics,Compatibility with Ada 83,Compatibility and Porting Guide
-@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-between-ada-95-and-ada-2005}@anchor{48f}@anchor{gnat_rm/compatibility_and_porting_guide
 id8}@anchor{490}
+@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-between-ada-95-and-ada-2005}@anchor{490}@anchor{gnat_rm/compatibility_and_porting_guide
 id8}@anchor{491}
 @section Compatibility between Ada 95 and Ada 2005
 
 
@@ -32311,7 +32330,7 @@ can declare a function returning a value from an 
anonymous access type.
 @end itemize
 
 @node Implementation-dependent characteristics,Compatibility with Other Ada 
Systems,Compatibility between Ada 95 and Ada 2005,Compatibility and Porting 
Guide
-@anchor{gnat_rm/compatibility_and_porting_guide 
id9}@anchor{491}@anchor{gnat_rm/compatibility_and_porting_guide 
implementation-dependent-characteristics}@anchor{492}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id9}@anchor{492}@anchor{gnat_rm/compatibility_and_porting_guide 
implementation-dependent-characteristics}@anchor{493}
 @section Implementation-dependent characteristics
 
 
@@ -32334,7 +32353,7 @@ transition from certain Ada 83 compilers.
 @end menu
 
 @node Implementation-defined pragmas,Implementation-defined 
attributes,,Implementation-dependent characteristics
-@anchor{gnat_rm/compatibility_and_porting_guide 
id10}@anchor{493}@anchor{gnat_rm/compatibility_and_porting_guide 
implementation-defined-pragmas}@anchor{494}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id10}@anchor{494}@anchor{gnat_rm/compatibility_and_porting_guide 
implementation-defined-pragmas}@anchor{495}
 @subsection Implementation-defined pragmas
 
 
@@ -32356,7 +32375,7 @@ avoiding compiler rejection of units that contain such 
pragmas; they are not
 relevant in a GNAT context and hence are not otherwise implemented.
 
 @node Implementation-defined attributes,Libraries,Implementation-defined 
pragmas,Implementation-dependent characteristics
-@anchor{gnat_rm/compatibility_and_porting_guide 
id11}@anchor{495}@anchor{gnat_rm/compatibility_and_porting_guide 
implementation-defined-attributes}@anchor{496}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id11}@anchor{496}@anchor{gnat_rm/compatibility_and_porting_guide 
implementation-defined-attributes}@anchor{497}
 @subsection Implementation-defined attributes
 
 
@@ -32370,7 +32389,7 @@ Ada 83, GNAT supplies the attributes @code{Bit}, 
@code{Machine_Size} and
 @code{Type_Class}.
 
 @node Libraries,Elaboration order,Implementation-defined 
attributes,Implementation-dependent characteristics
-@anchor{gnat_rm/compatibility_and_porting_guide 
id12}@anchor{497}@anchor{gnat_rm/compatibility_and_porting_guide 
libraries}@anchor{498}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id12}@anchor{498}@anchor{gnat_rm/compatibility_and_porting_guide 
libraries}@anchor{499}
 @subsection Libraries
 
 
@@ -32399,7 +32418,7 @@ be preferable to retrofit the application using modular 
types.
 @end itemize
 
 @node Elaboration order,Target-specific 
aspects,Libraries,Implementation-dependent characteristics
-@anchor{gnat_rm/compatibility_and_porting_guide 
elaboration-order}@anchor{499}@anchor{gnat_rm/compatibility_and_porting_guide 
id13}@anchor{49a}
+@anchor{gnat_rm/compatibility_and_porting_guide 
elaboration-order}@anchor{49a}@anchor{gnat_rm/compatibility_and_porting_guide 
id13}@anchor{49b}
 @subsection Elaboration order
 
 
@@ -32435,7 +32454,7 @@ pragmas either globally (as an effect of the `-gnatE' 
switch) or locally
 @end itemize
 
 @node Target-specific aspects,,Elaboration order,Implementation-dependent 
characteristics
-@anchor{gnat_rm/compatibility_and_porting_guide 
id14}@anchor{49b}@anchor{gnat_rm/compatibility_and_porting_guide 
target-specific-aspects}@anchor{49c}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id14}@anchor{49c}@anchor{gnat_rm/compatibility_and_porting_guide 
target-specific-aspects}@anchor{49d}
 @subsection Target-specific aspects
 
 
@@ -32448,10 +32467,10 @@ on the robustness of the original design.  Moreover, 
Ada 95 (and thus
 Ada 2005 and Ada 2012) are sometimes
 incompatible with typical Ada 83 compiler practices regarding implicit
 packing, the meaning of the Size attribute, and the size of access values.
-GNAT’s approach to these issues is described in @ref{49d,,Representation 
Clauses}.
+GNAT’s approach to these issues is described in @ref{49e,,Representation 
Clauses}.
 
 @node Compatibility with Other Ada Systems,Representation 
Clauses,Implementation-dependent characteristics,Compatibility and Porting Guide
-@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-with-other-ada-systems}@anchor{49e}@anchor{gnat_rm/compatibility_and_porting_guide
 id15}@anchor{49f}
+@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-with-other-ada-systems}@anchor{49f}@anchor{gnat_rm/compatibility_and_porting_guide
 id15}@anchor{4a0}
 @section Compatibility with Other Ada Systems
 
 
@@ -32494,7 +32513,7 @@ far beyond this minimal set, as described in the next 
section.
 @end itemize
 
 @node Representation Clauses,Compatibility with HP Ada 83,Compatibility with 
Other Ada Systems,Compatibility and Porting Guide
-@anchor{gnat_rm/compatibility_and_porting_guide 
id16}@anchor{4a0}@anchor{gnat_rm/compatibility_and_porting_guide 
representation-clauses}@anchor{49d}
+@anchor{gnat_rm/compatibility_and_porting_guide 
id16}@anchor{4a1}@anchor{gnat_rm/compatibility_and_porting_guide 
representation-clauses}@anchor{49e}
 @section Representation Clauses
 
 
@@ -32587,7 +32606,7 @@ with thin pointers.
 @end itemize
 
 @node Compatibility with HP Ada 83,,Representation Clauses,Compatibility and 
Porting Guide
-@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-with-hp-ada-83}@anchor{4a1}@anchor{gnat_rm/compatibility_and_porting_guide
 id17}@anchor{4a2}
+@anchor{gnat_rm/compatibility_and_porting_guide 
compatibility-with-hp-ada-83}@anchor{4a2}@anchor{gnat_rm/compatibility_and_porting_guide
 id17}@anchor{4a3}
 @section Compatibility with HP Ada 83
 
 
@@ -32617,7 +32636,7 @@ extension of package System.
 @end itemize
 
 @node GNU Free Documentation License,Index,Compatibility and Porting Guide,Top
-@anchor{share/gnu_free_documentation_license 
doc}@anchor{4a3}@anchor{share/gnu_free_documentation_license 
gnu-fdl}@anchor{1}@anchor{share/gnu_free_documentation_license 
gnu-free-documentation-license}@anchor{4a4}
+@anchor{share/gnu_free_documentation_license 
doc}@anchor{4a4}@anchor{share/gnu_free_documentation_license 
gnu-fdl}@anchor{1}@anchor{share/gnu_free_documentation_license 
gnu-free-documentation-license}@anchor{4a5}
 @chapter GNU Free Documentation License
 
 
-- 
2.43.0

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