* s-stalib.adb: Add more comments on with statements being needed

	* par-ch12.adb: Minor reformatting

	* prj-dect.ads: Fix copyright header

	* s-arit64.adb (Multiply_With_Ovflo_Check): Fix case where both
	inputs fit in 32 bits, but the result still overflows.

	* s-fatgen.ads: Minor comment improvement

	* sem_ch4.adb (Analyze_Selected_Component): If the prefix is of a
	formal derived type, look for an inherited component from the full
	view of the parent, if any.

	* checks.ads (Apply_Alignment_Check): New procedure.

	* exp_ch13.adb (Expand_N_Freeze_Entity): Generate dynamic check to
	ensure that the alignment of objects with address clauses is
	appropriate, and raise PE if not.

	* exp_util.ads (Must_Be_Aligned): Removed, replaced by
	Exp_Pakd.Known_Aligned_Enough

	* mdllfile.ads: Minor reformatting

	* mlib-fil.ads: Minor reformatting

	* exp_ch8.adb (Expand_N_Object_Renaming_Declaration): Extend previous
	fix to any component reference if enclosing record has non-standard
	representation.

	* g-dirope.ads (Find, Wildcard_Iterator): Moved to child package
	Iteration

	* freeze.ads: Make Freeze_Fixed_Point_Type visible, for use in
	sem_attr.

	* impunit.adb: Add entry for GNAT.Directory_Operations.Iteration

	* g-regexp.adb: Remove all debug code, since it isn't required anymore,
	and it adds dependencies to system.io.

	* g-dirope.adb (Expand_Path.Var): Correctly detect end of
	variable name.

*** s-stalib.adb	2001/09/03 15:24:33	1.17
--- s-stalib.adb	2001/10/16 13:14:46	1.18
***************
*** 46,59 ****
  --  elaboration circularities with Ada.Exceptions if polling is on.

  with System.Soft_Links;
! --  Referenced directly from generated code
! --  Also referenced from exception handling routines.
  --  This is needed for programs that don't use exceptions explicitely but
  --  direct calls to Ada.Exceptions are generated by gigi (for example,
  --  by calling __gnat_raise_constraint_error directly).

  with System.Memory;
! --  Referenced directly from generated code

  package body System.Standard_Library is

--- 46,62 ----
  --  elaboration circularities with Ada.Exceptions if polling is on.

  with System.Soft_Links;
! --  Referenced directly from generated code using external symbols so it
! --  must always be present in a build, even if no unit has a direct with
! --  of this unit. Also referenced from exception handling routines.
  --  This is needed for programs that don't use exceptions explicitely but
  --  direct calls to Ada.Exceptions are generated by gigi (for example,
  --  by calling __gnat_raise_constraint_error directly).

  with System.Memory;
! --  Referenced directly from generated code using external symbols, so it
! --  must always be present in a build, even if no unit has a direct with
! --  of this unit.

  package body System.Standard_Library is


*** par-ch12.adb	2001/10/19 15:22:18	1.48
--- par-ch12.adb	2001/10/19 15:24:48	1.49
***************
*** 452,466 ****
        if Def_Node /= Error then
           Set_Formal_Type_Definition (Decl_Node, Def_Node);
           TF_Semicolon;
        else
           Decl_Node := Error;

           if Token = Tok_Semicolon then
-             --   Avoid further cascaded errors.
              Scan;
           end if;
        end if;
-

        return Decl_Node;
     end P_Formal_Type_Declaration;
--- 452,467 ----
        if Def_Node /= Error then
           Set_Formal_Type_Definition (Decl_Node, Def_Node);
           TF_Semicolon;
+
        else
           Decl_Node := Error;

+          --  If we have semicolon, skip it to avoid cascaded errors
+
           if Token = Tok_Semicolon then
              Scan;
           end if;
        end if;

        return Decl_Node;
     end P_Formal_Type_Declaration;

*** prj-dect.ads	2001/10/20 10:28:13	1.4
--- prj-dect.ads	2001/10/20 11:43:56	1.5
***************
*** 8,14 ****
  --                                                                          --
  --                            $Revision$
  --                                                                          --
! --          Copyright (C) 2000-2001 Free Software Foundation, Inc.          --
  --                                                                          --
  -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  -- terms of the  GNU General Public License as published  by the Free Soft- --
--- 8,14 ----
  --                                                                          --
  --                            $Revision$
  --                                                                          --
! --             Copyright (C) 2001 Free Software Foundation, Inc.            --
  --                                                                          --
  -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  -- terms of the  GNU General Public License as published  by the Free Soft- --

*** s-arit64.adb	2001/02/09 15:10:29	1.16
--- s-arit64.adb	2001/10/20 14:50:39	1.17
***************
*** 325,337 ****
              T2 := Xhi * Ylo;
           end if;

!       else
!          if Yhi /= 0 then
!             T2 := Xlo * Yhi;
!          else
!             return X * Y;
!          end if;
        end if;

        T1 := Xlo * Ylo;
        T2 := T2 + Hi (T1);
--- 325,339 ----
              T2 := Xhi * Ylo;
           end if;

!       elsif Yhi /= 0 then
!          T2 := Xlo * Yhi;
!
!       else -- Yhi = Xhi = 0
!          T2 := 0;
        end if;
+
+       --  Here we have T2 set to the contribution to the upper half
+       --  of the result from the upper halves of the input values.

        T1 := Xlo * Ylo;
        T2 := T2 + Hi (T1);

*** s-fatgen.ads	2001/07/20 00:59:34	1.9
--- s-fatgen.ads	2001/10/20 18:37:39	1.10
***************
*** 89,97 ****

     function Unbiased_Rounding (X : T)                       return T;

!    function Valid             (X : access T)                return Boolean;
!    --  The argument must be passed by reference here, as T may be
!    --  an abnormal value that can be passed in a floating point register.

  private
     pragma Inline (Machine);
--- 89,100 ----

     function Unbiased_Rounding (X : T)                       return T;

!    function Valid (X : access T) return Boolean;
!    --  This function checks if the object of type T referenced by X
!    --  is valid, and returns True/False accordingly. The parameter is
!    --  passed by reference (access) here, as the object of type T may
!    --  be an abnormal value that cannot be passed in a floating-point
!    --  register, and the whole point of 'Valid is to prevent exceptions.

  private
     pragma Inline (Machine);

*** sem_ch4.adb	2001/09/24 22:32:31	1.511
--- sem_ch4.adb	2001/10/21 17:41:52	1.512
***************
*** 2691,2696 ****
--- 2691,2708 ----

              Check_Misspelled_Selector (Entity_List, Sel);

+          elsif Is_Generic_Type (Prefix_Type)
+            and then Ekind (Prefix_Type) = E_Record_Type_With_Private
+            and then Is_Record_Type (Etype (Prefix_Type))
+          then
+             --  If this is a derived formal type, the parent may have a
+             --  different visibility at this point. Try for an inherited
+             --  component before reporting an error.
+
+             Set_Etype (Prefix (N), Etype (Prefix_Type));
+             Analyze_Selected_Component (N);
+             return;
+
           else
              if Ekind (Prefix_Type) = E_Record_Subtype then


*** checks.ads	2001/07/16 01:26:04	1.55
--- checks.ads	2001/10/28 15:13:02	1.56
***************
*** 83,88 ****
--- 83,95 ----
     --  the object denoted by the access parameter is not deeper than the
     --  level of the type Typ. Program_Error is raised if the check fails.

+    procedure Apply_Alignment_Check (E : Entity_Id; N : Node_Id);
+    --  E is the entity for an object. If there is an address clause for
+    --  this entity, and checks are enabled, then this procedure generates
+    --  a check that the specified address has an alignment consistent with
+    --  the alignment of the object, raising PE if this is not the case. The
+    --  resulting check (if one is generated) is inserted before node N.
+
     procedure Apply_Array_Size_Check (N : Node_Id; Typ : Entity_Id);
     --  N is the node for an object declaration that declares an object of
     --  array type Typ. This routine generates, if necessary, a check that

*** exp_ch13.adb	2001/07/16 21:21:29	1.76
--- exp_ch13.adb	2001/10/28 15:13:25	1.77
***************
*** 27,32 ****
--- 27,33 ----
  ------------------------------------------------------------------------------

  with Atree;    use Atree;
+ with Checks;   use Checks;
  with Einfo;    use Einfo;
  with Exp_Ch3;  use Exp_Ch3;
  with Exp_Ch6;  use Exp_Ch6;
***************
*** 236,245 ****
        Decl           : Node_Id;

     begin
!       if not Is_Type (E) and then not Is_Subprogram (E) then
           return;
        end if;

        E_Scope := Scope (E);

        --  If we are freezing entities defined in protected types, they
--- 237,256 ----
        Decl           : Node_Id;

     begin
!       --  For object, with address clause, check alignment is OK
!
!       if Is_Object (E) then
!          Apply_Alignment_Check (E, N);
!
!       --  Only other items requiring any front end action are
!       --  types and subprograms.
!
!       elsif not Is_Type (E) and then not Is_Subprogram (E) then
           return;
        end if;

+       --  Here E is a type or a subprogram
+
        E_Scope := Scope (E);

        --  If we are freezing entities defined in protected types, they
***************
*** 304,314 ****

        elsif Is_Subprogram (E) then
           Freeze_Subprogram (N);
-
-       --  No other entities require any front end freeze actions
-
-       else
-          null;
        end if;

        --  Analyze actions generated by freezing. The init_proc contains
--- 315,320 ----

*** exp_util.ads	2001/07/23 10:05:17	1.112
--- exp_util.ads	2001/10/28 15:14:04	1.113
***************
*** 372,386 ****
     --  routine is to help avoid generating troublesome temporaries that
     --  intefere with the stack checking mechanism.

-    function Must_Be_Aligned (Obj : Node_Id) return Boolean;
-    --  Given an object reference, determines whether or not the object
-    --  is required to be aligned according to its type'alignment value.
-    --  Normally, objects are required to be aligned, and the result will
-    --  be True. The situation in which this is not the case is if the
-    --  object reference involves a component of a packed array, where
-    --  the type of the component is not required to have strict alignment.
-    --  In this case, false will be returned.
-
     procedure Remove_Side_Effects
       (Exp          : Node_Id;
        Name_Req     : Boolean := False;
--- 372,377 ----

*** mdllfile.ads	2001/10/29 02:06:24	1.2
--- mdllfile.ads	2001/10/29 02:50:12	1.3
***************
*** 26,52 ****
  --                                                                          --
  ------------------------------------------------------------------------------

! --  Simple services used by GNATDLL to deal with Filename extension.

  package MDLL.Files is

     No_Ext : constant String := "";

!    function Get_Ext (Filename : in String)
!                      return String;
!    --  return filename's extension.
!
!    function Is_Ali (Filename : in String)
!                     return Boolean;
!    --  test if Filename is an Ada library file (.ali).
!
!    function Is_Obj (Filename : in String)
!                     return Boolean;
!    --  test if Filename is an object file (.o or .obj).
!
!    function Ext_To (Filename : in String;
!                     New_Ext  : in String := No_Ext)
!                     return String;
!    --  return Filename with the extension change to New_Ext.

  end MDLL.Files;
--- 26,51 ----
  --                                                                          --
  ------------------------------------------------------------------------------

! --  Simple services used by GNATDLL to deal with Filename extension

  package MDLL.Files is

     No_Ext : constant String := "";
+    --  Used to mark the absence of an extension

!    function Get_Ext (Filename : String) return String;
!    --  Return extension of Filename
!
!    function Is_Ali (Filename : String) return Boolean;
!    --  Test if Filename is an Ada library file (.ali).
!
!    function Is_Obj (Filename : String) return Boolean;
!    --  Test if Filename is an object file (.o or .obj)
!
!    function Ext_To
!      (Filename : String;
!       New_Ext  : String := No_Ext)
!       return     String;
!    --  Return Filename with the extension change to New_Ext

  end MDLL.Files;

*** mlib-fil.ads	2001/10/29 02:06:26	1.3
--- mlib-fil.ads	2001/10/29 02:51:28	1.4
***************
*** 36,51 ****
        return     String;
     --  Return Filename with the extension change to New_Ext.

!    function Get_Ext (Filename : in String) return String;
     --  Return extension of filename.

     function Is_Archive (Filename : String) return Boolean;
     --  Test if filename is an archive

!    function Is_C (Filename : in String) return Boolean;
     --  Test if Filename is a C file

!    function Is_Obj (Filename : in String) return Boolean;
     --  Test if Filename is an object file

  end MLib.Fil;
--- 36,51 ----
        return     String;
     --  Return Filename with the extension change to New_Ext.

!    function Get_Ext (Filename : String) return String;
     --  Return extension of filename.

     function Is_Archive (Filename : String) return Boolean;
     --  Test if filename is an archive

!    function Is_C (Filename : String) return Boolean;
     --  Test if Filename is a C file

!    function Is_Obj (Filename : String) return Boolean;
     --  Test if Filename is an object file

  end MLib.Fil;

*** exp_ch8.adb	2001/10/03 02:17:32	1.30
--- exp_ch8.adb	2001/10/29 17:32:24	1.31
***************
*** 59,65 ****
     --  of the renamed object. The cases in which this is not true are when
     --  this address is not computable, since it involves extraction of a
     --  packed array element, or of a record component to which a component
!    --  clause applies (that can specify an arbitrary bit boundary).

     --  In these two cases, we pre-evaluate the renaming expression, by
     --  extracting and freezing the values of any subscripts, and then we
--- 59,66 ----
     --  of the renamed object. The cases in which this is not true are when
     --  this address is not computable, since it involves extraction of a
     --  packed array element, or of a record component to which a component
!    --  clause applies (that can specify an arbitrary bit boundary), or where
!    --  the enclosing record itself has a non-standard representation.

     --  In these two cases, we pre-evaluate the renaming expression, by
     --  extracting and freezing the values of any subscripts, and then we
***************
*** 211,228 ****
              end if;

           elsif Nkind (Nam) = N_Selected_Component then
!             if Present (Component_Clause (Entity (Selector_Name (Nam)))) then
!                return True;

!             elsif Ekind (Entity (Selector_Name (Nam))) = E_Discriminant
!               and then Is_Record_Type (Etype (Prefix (Nam)))
!               and then not Is_Concurrent_Record_Type (Etype (Prefix (Nam)))
!             then
!                return True;

!             else
!                return Evaluation_Required (Prefix (Nam));
!             end if;

           else
              return False;
--- 212,236 ----
              end if;

           elsif Nkind (Nam) = N_Selected_Component then
!             declare
!                Rec_Type : Entity_Id := Etype (Prefix (Nam));

!             begin
!                if Present (Component_Clause (Entity (Selector_Name (Nam))))
!                  or else Has_Non_Standard_Rep (Rec_Type)
!                then
!                   return True;
!
!                elsif Ekind (Entity (Selector_Name (Nam))) = E_Discriminant
!                  and then Is_Record_Type (Rec_Type)
!                  and then not Is_Concurrent_Record_Type (Rec_Type)
!                then
!                   return True;

!                else
!                   return Evaluation_Required (Prefix (Nam));
!                end if;
!             end;

           else
              return False;

*** g-dirope.ads	2001/08/27 09:48:38	1.12
--- g-dirope.ads	2001/10/29 19:18:13	1.13
***************
*** 38,43 ****
--- 38,47 ----
  --  can be treated as a file, using open and close routines, and a scanning
  --  routine is provided for iterating through the entries in a directory.

+ --  See also child package GNAT.Directory_Operations.Iteration
+
+ with Ada.Strings.Maps;
+
  package GNAT.Directory_Operations is

     subtype Dir_Name_Str is String;
***************
*** 187,248 ****
     --  returned in target-OS form. Raises Directory_Error if Dir has not
     --  be opened (Dir = Null_Dir).

-    generic
-       with procedure Action
-         (Item  :        String;
-          Index :        Positive;
-          Quit  : in out Boolean);
-    procedure Wildcard_Iterator (Path : Path_Name);
-    --  Calls Action for each path matching Path. Path can include wildcards '*'
-    --  and '?' and [...]. The rules are:
-    --
-    --     *       can be replaced by any sequence of characters
-    --     ?       can be replaced by a single character
-    --     [a-z]   match one character in the range 'a' through 'z'
-    --     [abc]   match either character 'a', 'b' or 'c'
-    --
-    --  Item is the filename that has been matched. Index is set to one for the
-    --  first call and is incremented by one at each call. The iterator's
-    --  termination can be controlled by setting Quit to True. It is by default
-    --  set to False.
-    --
-    --  For example, if we have the following directory structure:
-    --     /boo/
-    --        foo.ads
-    --     /sed/
-    --        foo.ads
-    --        file/
-    --          foo.ads
-    --     /sid/
-    --        foo.ads
-    --        file/
-    --          foo.ads
-    --     /life/
-    --
-    --  A call with expression "/s*/file/*" will call Action for the following
-    --  items:
-    --     /sed/file/foo.ads
-    --     /sid/file/foo.ads
-
-    generic
-       with procedure Action
-         (Item  :        String;
-          Index :        Positive;
-          Quit  : in out Boolean);
-    procedure Find
-      (Root_Directory : Dir_Name_Str;
-       File_Pattern   : String);
-    --  Recursively searches the directory structure rooted at Root_Directory.
-    --  This provides functionality similar to the UNIX 'find' command.
-    --  Action will be called for every item matching the regular expression
-    --  File_Pattern (see GNAT.Regexp). Item is the full pathname to the file
-    --  starting with Root_Directory that has been matched. Index is set to one
-    --  for the first call and is incremented by one at each call. The iterator
-    --  will pass in the value False on each call to Action. The iterator will
-    --  terminate after passing the last matched path to Action or after
-    --  returning from a call to Action which sets Quit to True.
-    --  Raises GNAT.Regexp.Error_In_Regexp if File_Pattern is ill formed.
-
     function Read_Is_Thread_Safe return Boolean;
     --  Indicates if procedure Read is thread safe. On systems where the
     --  target system supports this functionality, Read is thread safe,
--- 191,196 ----
***************
*** 259,263 ****
--- 207,215 ----
     Null_Dir : constant Dir_Type := null;

     pragma Import (C, Dir_Separator, "__gnat_dir_separator");
+
+    Dir_Seps : constant Ada.Strings.Maps.Character_Set :=
+                 Ada.Strings.Maps.To_Set ("/\");
+    --  UNIX and DOS style directory separators.

  end GNAT.Directory_Operations;

*** freeze.ads	2001/10/29 02:06:04	1.15
--- freeze.ads	2001/10/30 01:36:24	1.16
***************
*** 205,210 ****
--- 205,215 ----
     --  so need to be similarly treated. Freeze_Expression takes care of
     --  determining the proper insertion point for generated freeze actions.

+    procedure Freeze_Fixed_Point_Type (Typ : Entity_Id);
+    --  Freeze fixed point type. For fixed-point types, we have to defer
+    --  setting the size and bounds till the freeze point, since they are
+    --  potentially affected by the presence of size and small clauses.
+
     procedure Freeze_Itype (T : Entity_Id; N : Node_Id);
     --  This routine is called when an Itype is created and must be frozen
     --  immediately at the point of creation (for the sake of the expansion

*** impunit.adb	2001/09/26 07:14:11	1.14
--- impunit.adb	2001/10/30 04:33:45	1.15
***************
*** 195,200 ****
--- 195,201 ----
       "g-curexc",    -- GNAT.Current_Exception
       "g-debpoo",    -- GNAT.Debug_Pools
       "g-debuti",    -- GNAT.Debug_Utilities
+      "g-diopit",    -- GNAT.Directory_Operations.Iteration
       "g-dirope",    -- GNAT.Directory_Operations
       "g-dyntab",    -- GNAT.Dynamic_Tables
       "g-exctra",    -- GNAT.Exception_Traces

*** g-regexp.adb	2001/10/21 11:04:16	1.28
--- g-regexp.adb	2001/10/30 15:25:04	1.29
***************
*** 32,38 ****
  --                                                                          --
  ------------------------------------------------------------------------------

- with System.IO;
  with Unchecked_Deallocation;
  with Ada.Exceptions;
  with GNAT.Case_Util;
--- 32,37 ----
***************
*** 73,82 ****
     end record;
     --  Deterministic finite-state machine

-    Debug : constant Boolean := False;
-    --  When True, the primary and secondary tables will be printed.
-    --  Gnat does not generate any code if this variable is False;
-
     -----------------------
     -- Local Subprograms --
     -----------------------
--- 72,77 ----
***************
*** 188,199 ****
        pragma No_Return (Raise_Exception);
        --  Raise an exception, indicating an error at character Index in S.

-       procedure Print_Table
-         (Table      : Regexp_Array;
-          Num_States : State_Index;
-          Is_Primary : Boolean := True);
-       --  Print a table for debugging purposes
-
        --------------------
        -- Create_Mapping --
        --------------------
--- 183,188 ----
***************
*** 1225,1309 ****
                 end loop;
              end loop;

-             if Debug then
-                System.IO.New_Line;
-                System.IO.Put_Line ("Secondary table : ");
-                Print_Table (R.States, Nb_State, False);
-             end if;
-
              return (Ada.Finalization.Controlled with R => R);
           end;
        end Create_Secondary_Table;

-       -----------------
-       -- Print_Table --
-       -----------------
-
-       procedure Print_Table
-         (Table      : Regexp_Array;
-          Num_States : State_Index;
-          Is_Primary : Boolean := True)
-       is
-          function Reverse_Mapping (N : Column_Index) return Character;
-          --  Return the character corresponding to a column in the mapping
-
-          ---------------------
-          -- Reverse_Mapping --
-          ---------------------
-
-          function Reverse_Mapping (N : Column_Index) return Character is
-          begin
-             for Column in Map'Range loop
-                if Map (Column) = N then
-                   return Column;
-                end if;
-             end loop;
-
-             return ' ';
-          end Reverse_Mapping;
-
-       --  Start of processing for Print_Table
-
-       begin
-          --  Print the header line
-
-          System.IO.Put ("   [*]  ");
-
-          for Column in 1 .. Alphabet_Size  loop
-             System.IO.Put
-               (String'(1 .. 1 => Reverse_Mapping (Column)) & "   ");
-          end loop;
-
-          if Is_Primary then
-             System.IO.Put ("closure....");
-          end if;
-
-          System.IO.New_Line;
-
-          --  Print every line
-
-          for State in 1 .. Num_States loop
-             System.IO.Put (State'Img);
-
-             for K in 1 .. 3 - State'Img'Length loop
-                System.IO.Put (" ");
-             end loop;
-
-             for K in 0 .. Alphabet_Size loop
-                System.IO.Put (Table (State, K)'Img & "  ");
-             end loop;
-
-             for K in Alphabet_Size + 1 .. Table'Last (2) loop
-                if Table (State, K) /= 0 then
-                   System.IO.Put (Table (State, K)'Img & ",");
-                end if;
-             end loop;
-
-             System.IO.New_Line;
-          end loop;
-
-       end Print_Table;
-
        ---------------------
        -- Raise_Exception --
        ---------------------
--- 1214,1223 ----
***************
*** 1345,1356 ****
                (Table, Num_States, Start_State, End_State);
           end if;

-          if Debug then
-             Print_Table (Table.all, Num_States);
-             System.IO.Put_Line ("Start_State : " & Start_State'Img);
-             System.IO.Put_Line ("End_State   : " & End_State'Img);
-          end if;
-
           --  Creates the secondary table

           R := Create_Secondary_Table
--- 1259,1264 ----
***************
*** 1451,1467 ****
           New_Table := new Regexp_Array (Table'First (1) .. New_Lines,
                                          Table'First (2) .. New_Columns);
           New_Table.all := (others => (others => 0));
-
-          if Debug then
-             System.IO.Put_Line ("Reallocating table: Lines from "
-                                 & State_Index'Image (Table'Last (1))
-                                 & " to "
-                                 & State_Index'Image (New_Lines));
-             System.IO.Put_Line ("   and columns from "
-                                 & Column_Index'Image (Table'Last (2))
-                                 & " to "
-                                 & Column_Index'Image (New_Columns));
-          end if;

           for J in Table'Range (1) loop
              for K in Table'Range (2) loop
--- 1359,1364 ----

*** g-dirope.adb	2001/10/31 21:36:04	1.20
--- g-dirope.adb	2001/11/01 16:39:33	1.21
***************
*** 371,387 ****
                 E := E + 1;

                 Var_Name : loop
!                   exit Var_Name when E = Path'Last;

                    if Characters.Handling.Is_Letter (Path (E))
                      or else Characters.Handling.Is_Digit (Path (E))
                    then
                       E := E + 1;
                    else
-                      E := E - 1;
                       exit Var_Name;
                    end if;
                 end loop Var_Name;

                 declare
                    Env : OS_Lib.String_Access := OS_Lib.Getenv (Path (K .. E));
--- 371,388 ----
                 E := E + 1;

                 Var_Name : loop
!                   exit Var_Name when E > Path'Last;

                    if Characters.Handling.Is_Letter (Path (E))
                      or else Characters.Handling.Is_Digit (Path (E))
                    then
                       E := E + 1;
                    else
                       exit Var_Name;
                    end if;
                 end loop Var_Name;
+
+                E := E - 1;

                 declare
                    Env : OS_Lib.String_Access := OS_Lib.Getenv (Path (K .. E));
2001-12-11  Ed Schonberg <schonber@gnat.com>

	* sem_ch10.adb (Install_Withed_Unit): If the unit is a generic instance
	that is the parent of other generics, the instance body replaces the
	instance node.  Retrieve the instance of the spec, which is the one
	that is visible in clients and within the body.

2001-12-11  Vincent Celier <celier@gnat.com>

	* gnatmain.adb: Initial version.

	* gnatmain.ads: Initial version.

	* prj-attr.adb (Initialisation_Data): Add package Gnatstub.

	* snames.adb: Updated to match snames.ads.

	* snames.ads: Added Gnatstub.

2001-12-11  Vincent Celier <celier@gnat.com>

	* prj-attr.adb (Initialization_Data): Change name from
	Initialisation_Data.

2001-12-11  Emmanuel Briot <briot@gnat.com>

	* g-regpat.adb (Parse_Literal): Properly handle simple operators ?,
	+ and * applied to backslashed expressions like \r.

2001-12-11  Vasiliy Fofanov <fofanov@gnat.com>

	* g-os_lib.ads: String_List type added, Argument_List type is now
	subtype of String_List.

2001-12-11  Robert Dewar <dewar@gnat.com>

	* g-os_lib.ads: Change copyright to FSF
	Add comments for String_List type

2001-12-11  Vincent Celier <celier@gnat.com>

	* g-dirope.adb (Expand_Path): Fix bug. (wrong length when adding a
	string to the buffer).

2001-12-11  Ed Schonberg <schonber@gnat.com>

	* freeze.adb: Make Freeze_Fixed_Point_Type visible, for use in
	sem_attr.

	* sem_attr.adb: Simplify previous fix for Address.
	(Set_Bounds): If prefix is a non-frozen fixed-point type, freeze now,
	to avoid anomalies where the bound of the type appears to raise
	constraint error.

2001-12-11  Robert Dewar <dewar@gnat.com>

	* lib-xref.adb (Output_Refs): Make sure pointers are always properly
	handled.

2001-12-11  Ed Schonberg <schonber@gnat.com>

	* sem_ch12.adb (Analyze_Subprogram_Instantiation): Check for a
	renamed unit before checking for recursive instantiations.

2001-12-11  Emmanuel Briot <briot@gnat.com>

	* prj.ads: Add comments for some of the fields.

2001-12-11  Robert Dewar <dewar@gnat.com>

	* lib-xref.adb (Output_Refs): Don't output type references outside
	the main unit if they are not otherwise referenced.

2001-12-11  Ed Schonberg <schonber@gnat.com>

	* sem_attr.adb (Analyze_attribute, case Address and Size): Simplify
	code and diagnose additional illegal uses

	* sem_util.adb (Is_Object_Reference): An indexed component is an
	object only if the prefix is.

2001-12-11  Vincent Celier <celier@gnat.com>

	* g-diopit.adb: Initial version.

	* g-diopit.ads: Initial version.

	* g-dirope.adb:
	(Expand_Path): Avoid use of Unbounded_String
	(Find, Wildcard_Iterator): Moved to child package Iteration

	* Makefile.in: Added g-diopit.o to GNATRTL_NONTASKING_OBJS

2001-12-11  Robert Dewar <dewar@gnat.com>

	* sem_attr.adb: Minor reformatting

2001-12-11  Ed Schonberg <schonber@gnat.com>

	* sem_ch3.adb: Clarify some ???.

2001-12-11  Robert Dewar <dewar@gnat.com>

	* exp_util.adb (Must_Be_Aligned): Removed, replaced by
	Exp_Pakd.Known_Aligned_Enough

	* sem_ch13.adb (Check_Address_Alignment): Removed, extended
	version is moved to Exp_Ch13.

2001-12-11  Robert Dewar <dewar@gnat.com>

	* einfo.ads: Minor reformatting

	* exp_ch5.adb: Add comment for previous.change

	* ali.adb: New interface for extended typeref stuff.

	* ali.ads: New interface for typeref stuff.

	* checks.adb (Apply_Alignment_Check): New procedure.

	* debug.adb: Add -gnatdM for modified ALI output

	* exp_pakd.adb (Known_Aligned_Enough): Replaces Known_Aligned_Enough.

	* lib-xref.adb: Extend generation of <..> notation to cover
	subtype/object types. Note that this is a complete rewrite,
	getting rid of the very nasty quadratic algorithm previously
	used for derived type output.

	* lib-xref.ads: Extend description of <..> notation to cover
	subtype/object types. Uses {..} for these other cases.
	Also use (..) for pointer types.

	* sem_util.adb (Check_Potentially_Blocking_Operation): Slight cleanup.

	* exp_pakd.adb: Minor reformatting.  Note that prevous RH should say:
	(Known_Aligned_Enough): Replaces Must_Be_Aligned.

2001-12-11  Vincent Celier <celier@gnat.com>

	* gnatcmd.adb:
	Changed /COMPILE_ONLY to /ACTIONS=COMPILE
	Changed /BIND_ONLY to /ACTIONS=BIND
	Changed /LINK_ONLY to /ACTIONS=LINK

2001-12-11  Ed Schonberg  <schonber@gnat.com>

	* sem_ch8.adb (Find_Selected_Component): improved search for a
	candidate package in case of error.

	* sem_ch12.adb (Inline_Instance_Body): place head of use_clause
	chain back on scope stack before reinstalling use clauses.

	* exp_ch5.adb (Expand_N_If_Statement): if Constant_Condition_Warnings
	is enabled, do not kill the code for the condition, to preserve
	warning.

2001-12-11  Robert Dewar <dewar@gnat.com>

	* checks.adb (Insert_Valid_Check): Apply validity check to expression
	of conversion, not to result of conversion.

2001-12-11  Ed Schonberg <schonber@gnat.com>

	* sem_ch3.adb (Build_Derived_Record_Type): set Controlled flag
	before freezing parent. If the declarations are mutually recursive,
	an access to the current record type may be frozen before the
	derivation is complete.

2001-12-05  Vincent Celier <celier@gnat.com>

	* gnatcmd.adb: (MAKE): Add new translations: -b /BIND_ONLY,
	-c /COMPILE_ONLY, -l /LINK_ONLY

	* opt.ads:
	(Bind_Only): New Flag
	(Link_Only): New flag

	* switch.adb (Scan_Make_Switches): Add processing for -b (Bind_Only)
	and -l (Link_Only)

	* makeusg.adb: Add new switches -b and -l. Update Copyright notice.

	* make.adb:
	(Do_Compile_Step, Do_Bind_Step, Do_Link_Step): New flags.
	(Gnatmake): Set the step flags. Only perform a step if the
	corresponding step flag is True.
	(Scan_Make_Arg): Reset the bind and link step flags when -u
	or -gnatc has been specified.

2001-12-05  Ed Schonberg <schonber@gnat.com>

	* sem_eval.adb (Eval_Concatenation): If left operand is a null string,
	get bounds from right operand.

	* sem_eval.adb: Minor reformatting

	* exp_util.adb (Make_Literal_Range): use bound of literal rather
	than Index'First, its lower bound may be different from 1.

	* exp_util.adb: Undo earlier change, fixes ACVC regressions C48009B
	and C48009J

2001-12-05  Vincent Celier <celier@gnat.com>

	* prj-nmsc.adb Minor reformatting

	* prj-nmsc.adb (Language_Independent_Check): Reset Library flag if
	set and libraries are not supported.

2001-12-05  Ed Schonberg <schonber@gnat.com>

	* sem_ch3.adb (Build_Derived_Private_Type): set Public status of
	private view explicitly, so the back-end can treat as a global
	when appropriate.

2001-12-05  Ed Schonberg <schonber@gnat.com>

	* sem_ch12.adb (Instantiate_Package_Body): if instance is a compilation
	 unit, always replace instance node with new body, for ASIS use.

2001-12-05  Vincent Celier <celier@gnat.com>

	* prj-nmsc.adb (Language_Independent_Check): Issue a warning if
	libraries are not supported and both attributes Library_Name and
	Library_Dir are specified.

	* prj-proc.adb (Expression): Set location of Result to location of
	first term.

	* Makefile.in: Add mlib.o, mlib-fil.o, mlib-tgt and mlib-utl to GNATLS.
	(prj-nmsc is now importing MLib.Tgt)

	* prj-proc.adb: Put the change indicated above that was forgotten.

2001-12-05  Robert Dewar <dewar@gnat.com>

	* Makefile.in: Add dependencies for System.IO for GNAT.Regexp

2001-12-05  Ed Schonberg <schonber@gnat.com>

	* sem_ch3.adb (Build_Derived_Concurrent_Type): If derivation imposes a
	constraint, introduce explicit subtype declaration and derive from it.

	* sem_ch3.adb: Minor reformatting

2001-12-05  Robert Dewar <dewar@gnat.com>

	* checks.adb (Determine_Range): Increase cache size for checks.
	Minor reformatting

	* exp_ch6.adb: Minor reformatting
	(Expand_N_Subprogram_Body): Reset Is_Pure for any subprogram that has
	a parameter whose root type is System.Address, since treating such
	subprograms as pure in the code generator is almost surely a mistake
	that will lead to unexpected results.

	* exp_util.adb (Remove_Side_Effects): Clean up old ??? comment and
	change handling of conversions.

	* g-regexp.adb: Use System.IO instead of Ada.Text_IO.

2001-12-05  Ed Schonberg <schonber@gnat.com>

	* sem_ch3.adb (Analyze_Object_Declaration): If expression is an
	aggregate with static wrong size, attach generated Raise node to
	declaration.

2001-12-05  Robert Dewar <dewar@gnat.com>

	* sem_attr.adb (Analyze_Attribute): Defend against bad Val attribute.
	Fixes compilation abandoned bomb in B24009B.

2001-12-05  Ed Schonberg <schonber@gnat.com>

	* sem_ch12.adb:
	Document use of Associated_Node on Selected_Components.
	(Save_Global_Operand_Descendants): Change to Save_Entity_Descendants,
	to clarify use of untyped descendant fields.

2001-12-05  Robert Dewar <dewar@gnat.com>

	* prj-dect.ads: Add ??? comment
	Add 2001 to copyright notice (was not done in after all)

	* prj-part.adb: Minor reformatting. Reword one awkward error message.

	* prj.ads: Minor reformatting throughout, and add some ??? comments

	* snames.ads: Minor reformatting

2001-12-05  Geert Bosch <bosch@gnat.com>

	* snames.adb: Autoupdate

2001-12-05  Vincent Celier <celier@gnat.com>

	* prj-dect.adb (Parse): Rename parameter Modifying to Extends.

	* prj-dect.ads (Parse): Rename parameter Modifying to Extends.

	* prj-env.adb: Minor comment changes (modifying -> extends).

	* prj-nmsc.adb: Minor comment changes (modifying -> extends).

	* prj-part.adb (Parse_Single_Project): Change Tok_Modifying to
	Tok_Extends.

	* prj.adb (Initialize): Change Modifying to Extends.

	* scans.ads (Token_Type): Change Tok_Modifying to Tok_Extends.

	* prj.ads: Minor comment change (Modifying -> extending).

	* snames.ads: Change modifying to extends.

2001-12-05  Robert Dewar <dewar@gnat.com>

	* sem_warn.adb: Remove stuff for conditionals, we are not going to
	do this after all.

	* sem_warn.ads: Remove stuff for conditionals, we are not going to
	do this after all.  Add 2001 to copyright notice

2001-12-04  Geert Bosch <bosch@gnat.com>

	*  einfo.h, sinfo.h, treeprs.ads: Regenerate.

2001-12-04  Robert Dewar <dewar@gnat.com>

	* errout.adb (Error_Msg): Ignore attempt to put error msg at junk
	location if we already have errors. Stops some cases of cascaded
	errors.

	* errout.adb: Improve comment.

2001-12-04  Robert Dewar <dewar@gnat.com>

	* sem_ch12.adb:
	(Analyze_Formal_Type_Definition): Defend against Error.
	(Analyze_Formal_Subprogram): Defend against Error.

	* par-ch12.adb (F_Formal_Type_Declaration): In case of error,
	remove following semicolon if present. Removes cascaded error.

2001-12-04  Douglas B. Rupp <rupp@gnat.com>

	* bindgen.adb:
	(Gen_Exception_Table_Ada): Write "begin" and then return if Num
	 exceptions equals 0.
	(Gen_Exception_Table_C): Return if Num exceptions equals 0.
	Fixes PIWG E tests (which have to be run with -gnatL).

2001-12-04  Robert Dewar <dewar@gnat.com>

	* einfo.ads: Minor reformatting

2001-12-04  Ed Schonberg <schonber@gnat.com>

	* einfo.ads: Block_Node points to the identifier of the block, not to
	the block node itself, to preserve the link when the block is
	rewritten, e.g. within an if-statement with a static condition.

	* inline.adb (Cleanup_Scopes): recover block statement from block
	entity using new meaning of Block_Node.

	* sem_ch5.adb (Analyze_Block_Statement): set Block_Node to point to
	identifier of block node, rather than to node itself.

2001-12-04  Gary Dismukes <dismukes@gnat.com>

	* layout.adb:
	(Get_Max_Size): Fix "start of processing" comment to say Get_Max_Size.
	(Discrimify): Go back to setting the Etypes of the selected component
	because the Vname component does not exist at this point and will
	fail name resolution. Also set Analyzed.
	Remove with and use of Sem_Res.

2001-12-04  Arnaud Charlet <charlet@gnat.com>

	* Makefile.in: (HIE_SOURCES): add s-fat*.

2001-12-04  Robert Dewar <dewar@gnat.com>

	* sem_attr.adb:
	(Compile_Time_Known_Attribute): New procedure.
	(Eval_Attribute, case Size): Use Compile_Time_Known_Attribute to ensure
	 proper range check.

2001-12-04  Ed Schonberg <schonber@gnat.com>

	* sem_ch7.adb (New_Private_Type): Set Is_Tagged_Type flag before
	processing discriminants to diagnose illegal default values.

2001-12-04  Ed Schonberg <schonber@gnat.com>

	* sem_attr.adb (Resolve_Attribute): Handle properly an non-classwide
	access discriminant within a type extension that constrains its
	parent discriminants.

2001-12-04  Ed Schonberg <schonber@gnat.com>

	* sem_ch3.adb (Find_Type_Of_Subtype_Indic): If subtype indication
	is malformed, use instance of Any_Id to allow analysis to proceed.

	* par-ch12.adb (P_Formal_Type_Declaration): Propagate Error if
	type definition is illegal.
	(P_Formal_Derived_Type_Definition): Better recovery when TAGGED is
	misplaced.

2001-12-04  Ed Schonberg <schonber@gnat.com>

	* sem_warn.adb (Output_Unreferenced_Messages): Extend previous fix to
	constants.

2001-12-04  Robert Dewar <dewar@gnat.com>

	* errout.adb: Minor reformatting

2001-12-04  Robert Dewar <dewar@gnat.com>

	* exp_util.adb: Minor reformatting from last change

	* errout.adb (Check_For_Warning): For a Raised_Constraint_Error node
	which is a rewriting of an expression, traverse the original
	expression to remove warnings that may have been posted on it.

2001-12-04  Ed Schonberg <schonber@gnat.com>

	* exp_util.adb (Must_Be_Aligned): Return false for a component of a
	record that has other packed components.

2001-12-04  Douglass B. Rupp <rupp@gnat.com>

	* adaint.c: Minor cleanups.

2001-12-04  Douglass B. Rupp <rupp@gnat.com>

	* adaint.c: Do not use utime.h on vxworks.

2001-12-04  Arnaud Charlet <charlet@gnat.com>

	* Makefile.adalib: Clarify step 3 (use of gnat.adc) as it causes
	more confusion than it solves.

2001-12-04  Geert bosch <bosch@gnat.com>

	* einfo.h, nmake.adb, nmake.ads, sinfo.h treeprs.ads: Regenerate.

2001-12-04  Geert Bosch  <bosch@gnat.com>

	* Makefile.in (update-sources): New target.
	For use by gcc_release script.

2001-12-04  Ed Schonberg <schonber@gnat.com>

	* sem_prag.adb (Analyze_Pragma, case Validity_Checks): do not treat as
	a configuration pragma, it is now legal wherever a pragma can appear.

2001-12-04  Zack Weinberg  <zack@codesourcery.com>

	* Makefile.in: Don't set ALL.  Delete @cross_defines@,
	@cross_overrides@, @build_overrides@ stanzas.  INTERNAL_CFLAGS
	is now @CROSS@ -DIN_GCC; update comment.

2001-12-04  Robert Dewar <dewar@gnat.com>

	* einfo.adb (Has_Pragma_Pure_Function): New flag.
	Fix problem that stopped ceinfo from working

	* einfo.ads (Has_Pragma_Pure_Function): New flag.

	* sem_prag.adb (Pure_Function): Set new flag Has_Pragma_Pure_Function.

2001-12-04  Douglas B. Rupp <rupp@gnat.com>

	* gnatchop.adb:
	(File_Time_Stamp): New procedure.
	(Preserve_Mode): New boolean.
	(Write_Unit): Pass time stamp.
	Implement -p switch (preserve time stamps).

	* gnatcmd.adb (CHOP): Add translation for -p (/PRESERVE).

	* gnatchop.adb: Do usage info for -p switch

	* adaint.h (__gnat_set_file_time_name): New function

	* adaint.c (__gnat_set_file_time_name): Implement

	* adaint.h: Fix typo

2001-12-03  Robert Dewar <dewar@gnat.com>

	* sinfo.ads: Minor reformatting. N_Freeze_Entity node does not
        have Associated_Node.

2001-12-03  Robert Dewar <dewar@gnat.com>

	* prj-proc.adb: Minor reformatting

	* make.adb: Minor reformatting

2001-12-03  Geert Bosch <bosch@gnat.com>

	* make.adb: Minor reformatting.

2001-12-03 Robert Dewar  <dewar@gnat.com>

	* sem_ch12.adb: Minor reformatting

2001-12-03  Ed Schonberg <schonber@gnat.com>

	* sem_ch12.adb (Inline_Instance_Body): Use Save_Scope_Stack and
	push Standard on the stack before analyzing the instance body,
	in order to have a clean visibility environment.

	* sem_ch12.adb (Inline_Instance_Body): Remove redundant code.

2001-12-03  Ed Schonberg <schonber@gnat.com>

	* sem_ch12.adb (Instantiate_Package_Body): Protect against double
	instantiation of a body that contains an inlined body.

2001-12-03  Ed Schonberg <schonber@gnat.com>

	* sem_ch12.adb:
	(Analyze_generic_subprogram_Declaration): Set outer_generic_scope,
	to prevent freezing within formal packages.
	(Freeze_Subprogram_Body): If body comes from another instance that
	appeared before its own body, place freeze node at end of current
	declarative part, to prevent a back-end crash.
	(Inline_Instance_Body): Handle properly a package instance within
	a subprogram instance that is a child unit.

2001-12-01  Graham Stott  <grahams@redhat.com>

	* Makefile.in (misc.o): Add missing $(srcdir) prefix
	and add optabs.h dependency.

	* misc.c: Include optabs.h
	(gnat_tree_code_type): Make static and const.
	(gnat_tree_code_length): Likewise.
	(gnat_tree_code_name): Likewise.
	(update_setjmp_buf): Obtain operands mode from insn_data.

2001-11-29  Richard Henderson  <rth@redhat.com>

	* init.c: Remove obsolete dwarf2 frame.h section.

2001-11-29  Joseph S. Myers  <jsm28@cam.ac.uk>

	* Make-lang.in (ada.generated-manpages): New dummy target.

2001-11-29  Ed Schonberg <schonber@gnat.com>

	* g-os_lib.adb (Add_To_Command): use explicit loop to move string
	into Command, an array conversion is illegal here. Uncovered by
	ACATS B460005.

2001/11/28  Geert Bosch <bosch@gnat.com>

	* init.c: Minor whitespace changes.

2001-11-28  Doug Rupp <rupp@gnat.com>

	* init.c: (__gnat_install_handler,VMS): Increase size of alternate
	signal stack.

2001-11-28  Zack Weinberg  <zack@codesourcery.com>

	* misc.c (gnat_expand_constant): Move declaration above
	definition of lang_hooks.
	(LANG_HOOKS_EXPAND_CONSTANT): Set to gnat_expand_constant.
	(gnat_init): lang_expand_constant no longer exists.

	(internal_error_function): Remove #ifdef HAVE_VPRINTF.  We
	always have vprintf.
	(gnat_init): Always call set_internal_error_function.

2001-11-27  Andreas Jaeger  <aj@suse.de>

	* Makefile.in (stamp-tool_src_dir): Use symbolic link.

2001-11-27  Laurent Guerby  <guerby@acm.org>

	* Makefile.in: Regenerate Ada dependencies.

2001-11-26  Richard Henderson  <rth@redhat.com>

	* Make-lang.in (gnatbind, gnatmake, gnatbl, gnatchop, gnatcmd,
	gnatlink, gnatkr, gnatls, gnatmem, gnatprep, gnatpsta, gnatpsys,
	gnatxref, gnatfind, gnatlbr): Depend on CONFIG_H and prefix.o.

2001-11-25  Laurent Guerby  <guerby@acm.org>

	* sysdep.c (rts_get_*): Fix style.

2001-11-19  Laurent Guerby  <guerby@acm.org>

	* Makefile.in (INCLUDES_FOR_SUBDIR): Remove redundant system include
	since it is of no apparent use and cause warnings.

2001-11-18  Neil Booth  <neil@daikokuya.demon.co.uk>

	* misc.c (gnat_decode_option, gnat_init_options): Make definitions
	static too.
	(gnat_init): Don't return NULL.
	(finish_parse): Remove.

2001-11-17  Laurent Guerby  <guerby@acm.org>

	* Make-lang.in (GNATLIBFLAGS): Add -W -Wall.
	* gigi.h (init_decl_processing): Rename to gnat_init_decl_processing.
	* io-aux.c: Provide K&R prototypes to all functions, reformat code.
	* lang-spec.h: Add missing struct field to silence warnings.
	* sysdep.c (rts_get_*): Provide K&R prototype.
	* sysdep.c (Unlock_Task, Lock_Task): Move to K&R prototype.
	* traceback.c (Unlock_Task, Lock_Task): Likewise.
	* tracebak.c (__gnat_backtrace): Remove unused variable.
	* utils.c (end_subprog_body): Move to K&R style.

Thu Nov 15 18:16:17 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* trans.c, utils2.c: Remove PALIGN parameter to get_inner_reference.

2001-11-15  Neil Booth  <neil@daikokuya.demon.co.uk>

	* misc.c (gnat_init): Change prototype.  Include the
	functionality of the old init_parse and init_decl_processing.
	(gnat_init_decl_processing): New prototype.
	(init_parse): Remove.
	* utils.c (init_decl_processing): Rename gnat_init_decl_processing.

2001-11-09  Neil Booth  <neil@daikokuya.demon.co.uk>

	* misc.c (gnat_print_decl, gnat_print_type): Renamed.
	(LANG_HOOKS_PRINT_DECL, LANG_HOOKS_PRINT_TYPE): Override.
	(print_lang_statistics, lang_print_xnode, print_lang_identifier,
	set_yydebug): Remove.

2001-11-09  Neil Booth  <neil@daikokuya.demon.co.uk>

	* misc.c (LANG_HOOKS_NAME, LANG_HOOKS_IDENTIFIER_SIZE): Override.
	(struct lang_hooks): Constify.
	(language_string, lang_identify): Remove.
	* utils.c (init_decl_processing): Update.

2001-11-06  Neil Booth  <neil@cat.daikokuya.demon.co.uk>

	* misc.c: Include langhooks-def.h.
	* Makefile.in: Update.

2001-10-30  Robert Dewar <dewar@gnat.com>

	* style.adb:
	(Check_Identifier): Rewrite circuit to be compatible with use of letters
	in the upper half of ASCII.
	(Check_Identifier): Minor reformatting

2001-10-30  Geert Bosch <bosch@gnat.com>

	* (Associated_Node, Set_Associated_Node): Do not check for
	Freeze_Entity.

2001-10-30  Robert Dewar <dewar@gnat.com>

	* a-reatim.ads: Minor reformatting

2001-10-30  Robert Dewar <dewar@gnat.com>

	* gnatdll.adb: Minor reformatting throughout. Many ??? added for
	undocumented declarations.

2001-10-30  Pascal Obry <obry@gnat.com>

	* gnatdll.adb (Parse_Command_Line): handle -g option to be passed
	to the binder and linker.
	Minor style fix.

	* mdll.ads: Fix layout.  Update copyright notice.

	* mdll.adb: Fix layout.  Update copyright notice.

2001-10-30  Robert Dewar <dewar@gnat.com>

	* usage.adb: Minor fix to output for -gnaty.

2001-10-30  Ed Schonberg <schonber@gnat.com>

	* a-reatim.ads: Makes Seconds_Count into a 64-bit integer,
	to accommodate all its possible values.

	* a-reatim.adb (Split): Special-case handling of Time_Span_First
	and of small absolute values of T.

2001-10-30  Richard Kenner <kenner@gnat.com>

	* misc.c (gnat_expand_expr, case NULL_EXPR): Remove call to
	set_mem_attributes since not needed and wrong if RESULT if a REG;
	fixes ACATS failures.

2001-10-30  Geert Bosch <bosch@gnat.com>

	* 86numaux.adb, a-tigeau.ads, a-wtgeau.ads, fname-sf.ads, g-traceb.ads,
	s-tasdeb.ads, sem_maps.ads: Add 2001 to copyright notice.

2001-10-30  Robert Dewar <dewar@gnat.com>

	* bindusg.adb: Undocument -f switch.

	* gnatcmd.adb: Remove /FULL_ELABORATION.

	* opt.ads (Force_RM_Elaboration_Order): Document that this is
	obsolescent.

	* gnatbind.adb: Output new warning for use of obsolescent -f switch.

	* gnatbind.adb: Minor update of warning msg.

2001-10-30  Vincent Celier <celier@gnat.com>

	* gnatcmd.adb (MAKE, BIND, LINK, LIST, FIND, XREF): Add translations
	for project file switches (-P (/PROJECT_FILE=),
	 -X (/EXTERNAL_REFERENCE=) and -vPx (/PROJECT_FILE_VERBOSITY=DEFAULT
	or MEDIUM or HIGH)

2001-10-30  Geert Bosch <bosch@gnat.com>

	* decl.c: Minor whitespace fixes.

2001-10-30  Richard Kenner <kenner@gnat.com>

	* utils2.c (build_allocator): Test for SIZE overflow in array case too

2001-10-30  Geert Bosch <bosch@gnat.com>

	* ali-util.adb (Initialize_Checksum): Use out-mode instead of in out.
	Found due to GCC 3.0 warning of using uninitialized value.

	* layout.adb:
	(Get_Max_Size): Use variant record for tracking value/expression.
	 Makes logic clearer and prevents warnings for uninitialized variables.
	(Layout_Array_Type): Use variant record for tracking value/expression.
	 Makes logic clearer and prevents warnings for uninitialized variables.

2001-10-30  Robert Dewar <dewar@gnat.com>

	* lib.adb: Minor reformatting

	* s-taprop.ads: Minor reformatting

2001-10-29  Laurent Guerby  <guerby@acm.org>

	* init.c:
	(Raise_From_Signal_Handler, Propagate_Signal_Exception): Make arg
	const.
	(_gnat_error_handler): Make MSG const.

2001-10-29  Richard Kenner <kenner@gnat.com>

	* sysdep.c: Fix localtime_r problem on LynxOS.
	Also remove #elif to avoid warnings.

	* misc.c (yyparse): Don't set up and register jmpbuf; remove decls
	used by this.

	* decl.c (annotate_value): Make SIZE unsigned to avoid warning.

2001-10-28  Joseph S. Myers  <jsm28@cam.ac.uk>

	* 86numaux.adb, a-tigeau.ads, a-wtgeau.ads, decl.c, exp_ch6.adb,
	exp_ch9.adb, exp_util.adb, fname-sf.ads, freeze.ads, g-awk.adb,
	g-comlin.ads, g-dirope.adb, g-dyntab.ads, g-socket.ads,
	g-table.ads, g-traceb.ads, gnat-style.texi, gnatchop.adb, init.c,
	layout.adb, layout.ads, mdllfile.ads, mlib-fil.ads, osint.ads,
	s-fatgen.adb, s-imgrea.adb, s-taprop.ads, s-tasdeb.ads,
	sem_aggr.adb, sem_attr.adb, sem_case.ads, sem_ch13.adb,
	sem_ch3.adb, sem_elab.adb, sem_maps.ads, sem_res.adb,
	sem_util.ads, sinfo.ads, sinput.ads, table.adb, table.ads,
	types.ads, urealp.adb: Fix spelling errors.

2001-10-27  Laurent Guerby <guerby@acm.org>

	* trans.c (gigi): Fix non determinism leading to bootstrap
	comparison failures for debugging information.

2001-10-26  Florian Weimer  <fw@deneb.enyo.de>

	* gnat_rm.texi: Use @./@: where appropriate.

2001-10-26  Robert Dewar <dewar@gnat.com>

	* sinfo.adb: Define Associated_Node to overlap Entity field. Cleanup.

2001-10-26  Richard Kenner <kenner@gnat.com>

	* gmem.c (__gnat_gmem_read_next): Properly check for EOF

2001-10-26  Richard Kenner <kenner@gnat.com>

	* decl.c (validate_size): Modify message for bad size to avoid
	implication that compiler is modifying the size.

2001-10-26  Robert Dewar <dewar@gnat.com>

	* prj-util.adb: Minor reformatting. Fix bad header format.

2001-10-26  Robert Dewar <dewar@gnat.com>

	* sinfo.ads: Define Associated_Node to overlap Entity field. Cleanup.

	* sinfo.ads: Clarify use of Associated_Node (documentation only).

	* sem_ch12.adb: Change Node4 to Associated_Node. Change
	Associated_Node to Get_Associated_Node. Put use of Unchecked_Access
	much more narrowly in places where needed. These are cleanups.

2001-10-26  Joel Brobecker <brobecke@gnat.com>

	* 5zosinte.ads (null_pthread): new constant.

	* 5ztaprop.adb:
	(Initialize_TCB): Initialize thread ID to null, to be able to verify
	 later that this field has been set.
	(Finalize_TCB): ditto.
	(Suspend_Task): Verify that the thread ID is not null before using it.
	(Resume_Task): ditto.

	* s-tasdeb.adb:
	(Resume_All_Tasks): Lock the tasks list before using it.
	(Suspend_All_Tasks): ditto.

2001-10-26  Richard Kenner <kenner@gnat.com>

	* decl.c (gnat_to_gnu_entity, case E_General_Access_Type):
	Make constant variant of designated type for Is_Access_Constant.
	Call update_pointer_to with main variant.

	* trans.c (process_freeze_entity, process_type):
	Call update_pointer_to on main variant.

	* utils.c (update_pointer_to): Make corresponding variant for NEW_TYPE.
	If main variant, update all other variants.

	* utils2.c (build_unary_op, case INDIRECT_REF): No longer set
	TREE_STATIC.

2001-10-26  Robert Dewar <dewar@gnat.com>

	* prj-util.adb: Minor reformatting

2001-10-26  Robert Dewar <dewar@gnat.com>

	* prj-util.adb: Minor reformatting

2001-10-26  Robert Dewar <dewar@gnat.com>

	* prj-attr.adb: Minor reformatting throughout

2001-10-26  Robert Dewar <dewar@gnat.com>

	* prj-attr.ads: Minor reformatting
	Add ??? comment (this whole spec has almost no comments)

2001-10-26  Vincent Celier <celier@gnat.com>

	* g-os_lib.adb (Normalize_Pathname): Preserve the double slash
        ("//") that precede the drive letter on Interix.

2001-10-26  Geert Bosch <bosch@gnat.com>

	* gnat_rm.texi: Add GNAT Reference Manual.

2001-10-25  Robert Dewar <dewar@gnat.com>

	* sem_ch8.adb (Analyze_Package_Renaming): Skip analysis if Name
        is Error. Similar change for other renaming cases.

2001-10-25  Robert Dewar <dewar@gnat.com>

	* s-atacco.ads: Add pragma Inline_Always for functions.
	Fix header format. Add copyright 2001

2001-10-25  Ed Schonberg <schonber@gnat.com>

	* par-ch3.adb (P_Subtype_Mark_Resync): for an anonymous array
        return Error rather than Empty so that analysis can proceed.

2001-10-25  Ed Schonberg <schonber@gnat.com>

	* sem_util.adb (Enter_Name): better handling of cascaded error
        messages when a unit appears in its own context.

2001-10-25  Ed Schonberg <schonber@gnat.com>

	* sem_util.adb (Defining_Entity): in case of error, attach created
        entity to specification, so that semantic analysis can proceed.

2001-10-25  Robert Dewar <dewar@gnat.com>

	* sem_util.adb
        (Defining_Entity): Deal with Error.
	(Process_End_Label): Deal with bad end label for.

2001-10-25  Ed Schonberg <schonber@gnat.com>

	* sem_elab.adb (Check_A_Call): refine message when call is in an
	instance but callee is not declared in the generic unit.

2001-10-25  Ed Schonberg <schonber@gnat.com>

	* sem_elab.adb (Check_A_Call): check for renaming before finding the
	enclosing unit, which may already be different from the calling unit.

2001-10-25  Geert Bosch <bosch@gnat.com>

	* 4gintnam.ads: fix header format.

2001-10-25  Ed Schonberg <schonber@gnat.com>

	* sem_res.adb (Resolve_Call): if the call is actually an indexing
        operation on the result of a parameterless call, perform elaboration
        check after the node has been properly rewritten.

	* sem_ch12.adb (Copy_Generic_Node): after the proper body has been
        inlined within the generic tree, the defining identifier is not a
        compilation_unit.

2001-10-25  Ed Schonberg <schonber@gnat.com>

	* sem_res.adb (Resolve): special-case resolution of Null in an
         instance or an inlined body to avoid view conflicts.

	* sem_ch12.adb (Copy_Generic_Node): for allocators, check for view
         compatibility by retrieving the access type of the generic copy.

2001-10-25  Robert Dewar <dewar@gnat.com>

	* sem_ch3.adb:
	(Analyze_Number_Declaration): Handle error expression.
	(Signed_Integer_Type_Declaration): Handle error bound.
	(Analyze_Subtype_Indication): Handle error range.

	* sem_util.adb (Get_Index_Bounds): Check for Error.

2001-10-25  Robert Dewar <dewar@gnat.com>

	* restrict.adb (Set_No_Run_Time_Mode): Set Discard_Names as default
	in no run time mode.

2001-10-25  Pascal Obry <obry@gnat.com>

	* gnatmem.adb (Read_Next): fix Curs2 value to properly handle quiet
        mode case for ALLOC case.

	* gnatmem.adb (Read_Next): correctly fix parsing in Quiet mode on
        all platforms. Improvement of last change.

2001-10-25  Robert Dewar <dewar@gnat.com>

	* exp_ch4.adb (Expand_N_Allocator): Minor reformatting.

2001-10-25  Geert Bosch  <bosch@gnat.com>

	* osint.adb (Is_Relative): Remove duplicate.

2001-10-25  Pascal Obry <obry@gnat.com>

	* osint.adb (Read_Default_Search_Dirs): correctly detect relative
        pathnames in UNIX and DOS style with drive letter.
	(Is_Relative): new routine.

	* osint.adb: Minor reformatting

	* osint.adb (Is_Relative): implementation using
        GNAT.OS_Lib.Is_Absolute_Path. Better fix.

2001-10-25  Pascal Obry <obry@gnat.com>

	* g-dirope.adb (Basename): correctly compute offset between the
        original Path and the translated one.

	* g-dirope.adb: (Base_Name): add some comments.

2001-10-25  Robert Dewar <dewar@gnat.com>

	* exp_imgv.adb (Expand_Image_Attribute): Defend against bad use
        in HIE mode, avoids compilation abandoned message

	* exp_imgv.adb: Correct typo in previous change

	* exp_imgv.adb: Correct typo in previous change (not my day!)

2001-10-25  Robert Dewar <dewar@gnat.com>

	* s-tpinop.ads: Add 2001 to copyright notice. Fix header format.

2001-10-25  Pascal Obry <obry@gnat.com>

	* g-awk.ads: Move all pragma inlines next to the routine
	 declarations. This is more uniform with other GNAT spec.

2001-10-22  Geert Bosch  <bosch@gnat.com>

	* Make-lang.in (gnattools, cross-gnattools): Remove gnatmem.

2001-10-19  Geert Bosch  <bosch@gnat.com>

	* Makefile.in (tools, gnattools): Remove gnatmem.

2001-10-17  Richard Henderson  <rth@redhat.com>

	* Makefile.in (misc.o): Depend on langhooks.h.
	* misc.c: Include it.
	(LANG_HOOKS_INIT, LANG_HOOKS_INIT_OPTIONS): New.
	(LANG_HOOKS_DECODE_OPTION): New.
	(lang_hooks): Use LANG_HOOKS_INITIALIZER.

2001-10-16  Florian Weimer  <fw@deneb.enyo.de>

	* trans.c (tree_transform): Adjust to recent change in
	expand_asm_operands to implement named asm operands.

2001-10-11  Ed Schonberg  <schonber@gnat.com>

	* exp_ch8.adb (Expand_N_Object_Renaming_Declaration): Bugfix in
	renaming of discriminant for mutable record type.

2001-10-11  Robert Dewar  <dewar@gnat.com>

	* validsw.adb: Properly save -gnatVn status.

2001-10-11  Robert Dewar <dewar@gnat.com>

	* usage.adb: Add lines for V switch.

	* gnatcmd.adb (COMPILE): Revise translations for -gnatV
	(/VALIDITY_CHECKING).

2001-10-11  Ed Schonberg <schonber@gnat.com>

	* sem_type.adb (Add_One_Interp): an operator for a type declared in
	an extension of System is known to be visible.

2001-10-11  Ed Schonberg <schonber@gnat.com>

	* sem_eval.adb (Compare_Fixup): get the bounds of a String_Literal
	properly. Fixes regression on ACATS C34005G.

2001-10-11  Robert Dewar <dewar@gnat.com>

	* sem_ch5.adb (Analyze_Iteration_Scheme): Suppress warning on null
	loop in generic instance, since this is likely not very useful.

2001-10-11  Robert Dewar <dewar@gnat.com>

	* restrict.adb (Disallow in No_Run_Time_Mode): Properly specialize
	the error message for high integrity mode.

	* rtsfind.adb (RTE): Give message if we try to find an entity that
	is not available in high integrity mode.

	* rtsfind.ads:
	(OK_To_Use_In_HIE_Mode): New array.
	(RTE): May return Empty in high integrity mode.

	* rtsfind.ads (OK_To_Use_In_No_Run_Time_Mode): New name for
	OK_To_Use_In_HIE_Mode, now includes System_FAT_xxx.

	* sem_ch6.adb (Analyze_Subprogram_Body): Kill body in predefined
	unit if not inlined always and in no runtime mode. Fixes problem
	caused by new Rtsfind changes.

	* sem_ch6.adb (Analyze_Subrogram_Body): Do not Check_References if
	body is deleted.

	* rtsfind.adb (RTE): Make sure we do not try to load unit after
	giving message for entity not available in high integrity mode.

2001-10-11  Pascal Obry <obry@gnat.com>

	* impunit.adb: Add GNAT.CRC32.

2001-10-11  Ed Schonberg <schonber@gnat.com>

	* exp_fixd.adb (Expand_Multiply_Fixed_By_Fixed_Giving_Fixed): handle
	properly the case where one universal operand in a non-static
	exponentiation of a real literal.

2001-10-11  Ed Schonberg <schonber@gnat.com>

	* exp_ch7.adb (Find_Final_List): for a type appearing in a with_type
	clause, return the gobal finalization list, for lack of anthing else.

2001-10-11  Ed Schonberg <schonber@gnat.com>

	* exp_ch7.adb (Make_Transient_Block): if statement is within
	exception handler, always use new transient scope to place Clean
	procedure.

2001-10-11  Pascal Obry <obry@gnat.com>

	* Makefile.in:
	(GNAT_ADA_OBJS): add g-crc32.o, a-tags.o, a-stream.o
	(GNATBIND_OBJS): add g-crc32.o, a-tags.o, a-stream.o
	(GNATLS_RTL_OBJS): add g-crc32.o
	(GNATMAKE_RTL_OBJS): add g-crc32.o

	* ali-util.adb:
	(CRC_Match): new function.
	(Get_File_Checksum): renamed Get_File_CRC. Use the GNAT.CRC32 unit
	instead of the previous simple checksum algorithm.
	(Time_Stamp_Mismatch): use CRC_Match for comparison.
	(Set_Source_Table): idem.

	* ali-util.ads:
	(Get_File_Checksum): renamed Get_File_CRC as now we compute CRC
	instead of simple checksum.
	(CRC_Match): new function.
	(CRC_Error): new constant.

	* ali.adb (Scan_ALI): rename variable Chk to CRC as we are handling
	a CRC now and not a simple checksum. A CRC uses lower-case hex
	letters, fixes ambiguity in parsing.

	* ali.ads (Sdep_Record.Checksum): renamed Sdep_Record.CRC as this
	is what this variable will store.

	* bcheck.adb: Change reference to chechsum in comments by CRC.
	(Check_Consistency): Rename Get_File_Checksum to Get_File_CRC.
	rename All_Checksum_Match to All_CRC_Match. Change due to API
	renaming since now GNAT does not use a simple checksum but a
	CRC using GNAT.CRC32.

	* gnatls.adb: Rename Checksum to CRC in many places, we use a CRC
	now and not anymore a simple checksum.

	* lib-load.adb: Use Source_CRC instead of Source_Checksum in many
	places.

	* lib-writ.adb (Write_ALI): Use Source_CRC instead of Source_Checksum.

	* scans.adb:
	(Restore_Scan_State): rename Checksum to CRC.
	(Save_Scan_State): idem.

	* scans.ads:
	With GNAT.CRC32.
	(Checksum): rename to CRC.
	(Saved_Scan_State): Save_Checksum field renamed to Save_CRC

	* scn-nlit.adb: Rename many Accumulate_Checksum to Update (from
	GNAT.CRC32).  Update copyright notice.

	* scn-slit.adb: Rename many Accumulate_Checksum to Update (from
	GNAT.CRC32).  Update copyright notice.

	* scn.adb:
	(Accumulate_Checksum): removed.
	(Update): new procedure. Add a wide-character into the CRC.

	* sinput-l.adb:
	(Complete_Source_File_Entry): use CRC32 instead of simple checksum.
	(Load_File): fix initialization of S (change Source_Checksum to
	Source_CRC)

	* sinput-p.adb (Load_Project_File): rename Source_Checksum to
	Source_CRC in S initialization.

	* sinput.adb (Source_Checksum): renamed to Source_CRC.

	* sinput.ads (Source_Checksum): renamed to Source_CRC.
	Update comments for the CRC.

	* types.adb (Hex): Use lowercase for the letter part.

	* types.ads (Get_Hex_String): Returns the hexadecimal representation
	for a word. This is currently used only for CRC. In previous version,
	the checksum was using a representation with all letter being
	upper-case. With the new implementation (using CRC) we do not remove
	the 32th bit of the CRC, so we can have an upper-case starting letter
	in the CRC. This is not possible to parse in Scan_ALI (ali.adb).
	It is ambigous since the CRC was optional and could be followed by
	options like EB, EE. So now this routines uses lower-case letter for
	the hexadecimal representation. Strange enough only lower case letters
	where checked in Scan_ALI (even if this was not a possible case).

	* gnatvsn.ads (Library_Version): changed to 3.15a.

	* s-crc32.ads: Initial version from GNAT.CRC32. This is the version
	for the compiler.

	* s-crc32.adb: Initial version from GNAT.CRC32. This is the version
	for the compiler.

	* ali-util.adb: Redo previous change to avoid using word CRC everywhere
	Add 2001 to copyright notice
	(Accumulate_Checksum): Modify to use System.CRC32.

	* ali-util.ads: Redo changes of previous revision to continue to use
	the word Checksum. Add 2001 to copyright notice.

	* ali.adb: Undo some of previous changes, not needed.
	Keep the change for lower case letters in the checksum.

	* ali.ads: Undo previous change not needed.

	* bcheck.adb: Undo most of previous change, not needed.
	But do use Checksums_Match for checksum comparison.

	* gnatls.adb: Undo most of previous change, not needed.
	But do use Checksums_Match for comparing checksums.

	* lib-load.adb: Undo previous change, not needed.

	* lib-writ.adb: Undo previous change, not needed.

	* lib-writ.ads: Document that checksums use lower case,
	not upper case letters.

	* scans.adb: Undo previous change, not needed

	* scans.ads: Undo previous change, not needed.

	* scn-nlit.adb: Undo previous changes, not needed.

	* scn-slit.adb: Undo previous change, not needed.  Fix header format.

	* scn.adb:
	(Accumulate_Checksum): Use System.CRC32.
	(Initialize_Checksum): New procedure.
	Remove other changes of previous revision.

	* sinput-p.adb: Undo previous change, not needed.

	* sinput.adb: Undo previous change, not needed.

	* sinput-l.adb: Undo previous change, not needed.

	* sinput.ads: Undo previous change, not needed.  Keep only comment
	on new checksum algorithm

	* Makefile.in: Add s-crc32 as needed, remove g-crc32.
	Also remove a-tags and a-stream from GNAT sources.

	* ali.adb (Scan_ALI): fix typo introduce in latest check-in.

	* Makefile.in (GNATRTL_NONTASKING_OBJS): Add g-crc32.o.

2001-10-11  Geert Bosch  <bosch@gnat.com>

	* einfo.h: Regenerate.

	* nmake.ads: Regenerate.

	* nmake.adb: Regenerate.

	* sinfo.h: Regenerate.

	* treeprs.adb: Regenerate.

2001-10-10  Geert Bosch  <bosch@gnat.com>

	* gnat-style.texi: New file describing coding guidelines for Ada.

2001-10-10  Ed Schonberg <schonber@gnat.com>

	* einfo.adb (Write_Entity_Flags): Elaboration_Entity_Required
	is Flag174.

2001-10-10  Geert Bosch  <bosch@gnat.com>

	* snames.ads: Add new names for project facility.

	* snames.adb: Update to reflect snames.ads changes.

	* snames.h: Update to reflect snames.ads changes.

2001-10-10  Vincent Celier <celier@gnat.com>

	* make.adb:
	(Add_Switches): reflect the changes for the switches attributes
	Default_Switches indexed by the programming language,
	Switches indexed by the file name.
	(Collect_Arguments_And_Compile): Idem.
	Reflect the attribute name changes.

	* prj-attr.adb:
	(Initialisation_Data): Change the names of some packages and
	attributes.
	(Initialize): process case insensitive associative arrays.

	* prj-attr.ads:
	(Attribute_Kind): Remove Both, add Case_Insensitive_Associative_Array.

	* prj-dect.adb:
	(Parse_Attribute_Declaration): For case insensitive associative
	 arrays, set the index string to lower case.

	* prj-env.adb:
	Reflect the changes of the project attributes.

	* prj-nmsc.adb:
	Replace Check_Naming_Scheme by Ada_Check and
	Language_Independent_Check.

	* prj-nmsc.ads:
	Replaced Check_Naming_Scheme by 2 procedures:
	Ada_Check and Language_Independent_Check.

	* prj-proc.adb:
	(Process_Declarative_Items): For case-insensitive associative
	arrays, set the index string to lower case.
	(Recursive_Check): Call Prj.Nmsc.Ada_Check, instead of
	Prj.Nmsc.Check_Naming_Scheme.

	* prj-tree.adb:
	(Case_Insensitive): New function
	(Set_Case_Insensitive): New procedure

	* prj-tree.ads:
	(Case_Insensitive): New function
	(Set_Case_Insensitive): New procedure
	(Project_Node_Record): New flag Case_Insensitive.

	* prj-util.adb:
	(Value_Of): new function to get the string value of a single
	string variable or attribute.

	* prj-util.ads:
	(Value_Of): new function to get the string value of a single
	string variable or attribute.

	* prj.adb:
	(Ada_Default_Spec_Suffix): New function
	(Ada_Default_Impl_Suffix): New function
	Change definitions of several constants to reflect
	new components of record types.

	* prj.ads:
	(Naming_Data): Change several components to reflect new
	elements of naming schemes.
	(Project_Data): New flags Sources_Present and
	Language_Independent_Checked.
	(Ada_Default_Spec_Suffix): New function.
	(Ada_Default_Impl_Suffix): New function.

	* snames.ads:
	Modification of predefined names for project manager: added
	Implementation, Specification_Exceptions, Implementation_Exceptions,
	Specification_Suffix, Implementation_Suffix, Separate_Suffix,
	Default_Switches, _Languages, Builder, Cross_Reference,
	Finder. Removed Body_Part, Specification_Append, Body_Append,
	Separate_Append, Gnatmake, Gnatxref, Gnatfind, Gnatbind,
	Gnatlink.

	* prj.ads: (Ada_Default_Spec_Suffix, Ada_Default_Impl_Suffix):
	Add comments.

	* prj-nmsc.adb (Ada_Check): Test that Separate_Suffix is defaulted,
	not that it is Nil_Variable_Value.

	* prj.ads: Add ??? for uncommented declarations

2001-10-10  Ed Schonberg <schonber@gnat.com>

	* sem_prag.adb: (Analyze_Pragma, case External): If entity is a
	constant, do not indicate possible modification, so that gigi can
	treat it as a bona fide constant.

2001-10-10  Robert Dewar <dewar@gnat.com>

	* sem_prag.adb: Add processing for pragma External.

	* snames.ads: Add entry for pragma External.

	* par-prag.adb: Add pragma External.

	* snames.adb: Updated to match snames.ads.

2001-10-10  Ed Schonberg <schonber@gnat.com>

	* exp_ch4.adb (Expand_N_Allocator): Generate meaningful names for
	a dynamic task if the allocator appears in an indexed assignment
	or selected component assignment.

	* exp_util.adb (Build_Task_Array_Image, Build_Task_Record_Image):
	For a dynamic task in an assignment statement, use target of
	assignment to generate meaningful name.

2001-10-10  Ed Schonberg <schonber@gnat.com>

	* einfo.adb (Write_Field19_Name): Body_Entity is also defined for
	a generic package.

	* einfo.ads: Body_Entity is also defined for generic package.
	Documentation change only

	* exp_aggr.adb (Build_Array_Aggr_Code): When expanding an
	others_choice for a discriminated component initialization,
	convert discriminant references into the corresponding discriminals.

	* exp_ch3.adb (Get_Simple_Init_Val): Add qualification to aggregate
	only if original type is private and expression has to be wrapped
	in a conversion.

	* checks.adb:
	(Apply_Constraint_Check): Do not perform length check
	if expression is an aggregate with only an others_choice.
	(Length_N_Cond): two references to the same in_parameter
	(typically the discriminal in an init_proc) denote the same value.
	Two useful optimization uncovered by bugfixes above.

2001-10-10  Robert Dewar <dewar@gnat.com>

	* xeinfo.adb: Change int to char in translation of enumeration types.
	This fixes a problem in the C representation of component alignment.
	Add 2001 to copyright notice

2001-10-10  Richard Kenner <kenner@gnat.com>

	* decl.c: (validate_size): Do check size of object of integral type
	if it is a packed array type.

2001-10-10  Richard Kenner <kenner@gnat.com>

	* decl.c: (gnat_to_gnu_entity, case object): Also materialize
	VAR_DECL for constant if not Is_Public but -O0.

2001-10-10  Richard Kenner  <kenner@gnat.com>

	* misc.c (struct lang_hooks): Add new initializer to match GCC change.

2001-10-10  Geert Bosch  <bosch@gnat.com>

	* xnmake.adb (XNmake): Fix handling of -s/-b options.  No longer
	use '/' as switch character, allowing for absolute file names.

2001-10-09  Joseph S. Myers  <jsm28@cam.ac.uk>

	* 4gintnam.ads, Make-lang.in, Makefile.in, config-lang.in: Update
	FSF address.

2001-10-08  Geert Bosch  <bosch@gnat.com>

	* Makefile.in (treeprs.ads, einfo.h, sinfo.h, nmake.adb, nmake.ads):
	Automatically build utilities when files need to be regenerated.

2001-10-08  Geert Bosch  <bosch@gnat.com>

	* xsnames.adb: New utility for updating snames.ads and snames.adb

2001-10-08  Zack Weinberg  <zack@codesourcery.com>

	* Make-lang.in (ADAFLAGS): Add -W -Wall.
	(ADA_FLAGS_TO_PASS): Set ADA_CFLAGS=$(CFLAGS) also.
	(gnat1): Also depend on attribs.o.
	(gnatlib, gnatlib-shared): Set CC and ADAC in recursive make.
	* Makefile.in (X_ADAFLAGS, T_ADAFLAGS): New.
	(ADAC): Set to @ADAC@ in stage1, $(CC) later.
	(ADAFLAGS): Add -W -Wall.
	(ALL_ADAFLAGS, MOST_ADAFLAGS): Add X_ADAFLAGS and T_ADAFLAGS;
	take out CFLAGS.

	(.adb.o, .ads.o, a-numaux.o, a-teioed.o, s-interr.o,
	s-taskin.o, sdefault.o, s-tasdeb.o, s-vaflop.o, a-except.o,
	s-assert.o, s-stalib.o, s-memory.o, memtrack.o, mlib-tgt.o):
	Use $(ADAC), not $(CC), as compilation command.

	(gnattools): Depend directly on tools to build, don't use
	recursive make.
	(gnatlib): Set ADA_CFLAGS=$(GNATLIBCFLAGS) in recursive make.

	* einfo.h, sinfo.h: New files (autogenerated).

2001-10-08  Richard Henderson  <rth@redhat.com>

	* comperr.adb (Abort_In_Progress): New.
	(Compiler_Abort): Use it to prevent recursion.

2001-10-08  Robert Dewar <dewar@gnat.com>

	* atree.adb: Set Error_Posted in Error node, helps error recovery.

	* par-endh.adb (Output_End_Expected): We should also not test
	Error_Posted on the Error node, since now it is always set.

	* cstand.adb (Create_Standard): Set Etype of Error to Any_Type
	to help error recovery. Part of general work on 9407-004.

	* par.adb: Add ??? for misuse of error

	* sem_res.adb:
	(Resolve): Defend against Error, fixes 9407-003.
	(Resolve_Discrete_Subtype_Indication): Defend against Error.

	* sinfo.ads (N_Error): Now has Etype field (which will be set
	to Any_Type to help error recovery).

2001-10-08  Richard Kenner (kenner@gnat.com)

	* misc.c (gnat_expand_expr, case UNCHECKED_CONVERT_EXPR):
	Consistently set MEM attributes from expression; fixes
	bootstrap failure on x86.

2001-10-08  Geert Bosch  (bosch@gnat.com)

	* 5oosinte.adb: Add 2001 to copyright notice.

2001-10-08  Geert Bosch  (bosch@gnat.com)

	* ceinfo.adb: Add utility for consistency checking of einfo.ad[bs].

	* csinfo.adb: Add utility for consistency checking of sinfo.ad[bs].

2001-10-07  Joseph S. Myers  <jsm28@cam.ac.uk>

	* 5oosinte.adb: Fix spelling error of "separate" as "seperate".

2001-10-05  Geert Bosch  (bosch@gnat.com)

	* adaint.h: Small formatting fix.

2001-10-04  Geert Bosch  <bosch@gnat.com>

	* sysdep.c (__gnat_set_binary_mode, __gnat_set_text_mode):
	Arg is int, not FILE *, in dummy version of functions.

	* adaint.h (__gnat_set_binary_mode, __gnat_set_text_mode):
	Arg is int, not FILE *.

2001-10-04  Geert Bosch  <bosch@gnat.com>

	* 3lsoccon.ads: Added file, missed with initial check ins.

	* 4lintnam.ads: Fix header format.
	Change Linux to GNU/Linux.

	* 5iosinte.adb: Change Linux to GNU/Linux.

	* 5iosinte.ads: Change Linux to GNU/Linux.

	* 5itaprop.adb: Change Linux to GNU/Linux.

	* 5itaspri.ads: Change Linux to GNU/Linux.
	Update copyright notice.

	* 5lintman.adb: Change Linux to GNU/Linux.

	* 5lml-tgt.adb: Change Linux to GNU/Linux.

	* 5losinte.ads: Change Linux to GNU/Linux.

	* 5lsystem.ads: Change Linux to GNU/Linux.

	* 5qosinte.adb: Change Linux to GNU/Linux.

	* 5qosinte.ads: Change Linux to GNU/Linux.

	* 5qparame.ads: Change Linux to GNU/Linux.

	* 5qtaprop.adb: Change Linux to GNU/Linux.

	* 5qtaspri.ads: Change Linux to GNU/Linux.
	Add 2001 to copyright notice.

	* 5vintman.ads: Change Linux to GNU/Linux.
	Fix header format.  Add 2001 to copyright notice.

	* g-soccon.ads: Change Linux to GNU/Linux.

	* g-trasym.ads: Change Linux to GNU/Linux.
	Add 2001 to copyright notice.

	* memtrack.adb: Change Linux to GNU/Linux.

	* s-intman.ads: Change Linux to GNU/Linux.
	Add 2001 to copyright notice.  Fix header format.

	* s-stache.adb: Change Linux to GNU/Linux.

	* adaint.c: Change Linux to GNU/Linux.

	* cio.c: Change Linux to GNU/Linux.

	* cstreams.c: Change Linux to GNU/Linux.

	* init.c: Change Linux to GNU/Linux.

	* gmem.c: Change Linux to GNU/Linux.

	* tracebak.c: Change Linux to GNU/Linux.


2001-10-02  Geert Bosch  <bosch@gnat.com>

	* misc.c (insert_default_attributes): Add dummy version.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@47950 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 7 insertions, 4 deletions

diff --git a/gcc/ada/s-fatgen.ads b/gcc/ada/s-fatgen.ads
index 0ad0d682216..2e70d9d744f 100644
--- a/gcc/ada/s-fatgen.ads
+++ b/gcc/ada/s-fatgen.ads
@@ -6,7 +6,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---                            $Revision: 1.9 $
+--                            $Revision$
 --                                                                          --
 --          Copyright (C) 1992-2001 Free Software Foundation, Inc.          --
 --                                                                          --
@@ -89,9 +89,12 @@ pragma Pure (Fat_Gen);
 
    function Unbiased_Rounding (X : T)                       return T;
 
-   function Valid             (X : access T)                return Boolean;
-   --  The argument must be passed by reference here, as T may be
-   --  an abnormal value that can be passed in a floating point register.
+   function Valid (X : access T) return Boolean;
+   --  This function checks if the object of type T referenced by X
+   --  is valid, and returns True/False accordingly. The parameter is
+   --  passed by reference (access) here, as the object of type T may
+   --  be an abnormal value that cannot be passed in a floating-point
+   --  register, and the whole point of 'Valid is to prevent exceptions.
 
 private
    pragma Inline (Machine);