[multiple changes]

2012-10-02  Robert Dewar  <dewar@adacore.com>

	* sem_ch8.adb: Minor reformatting.

2012-10-02  Javier Miranda  <miranda@adacore.com>

	* exp_disp.adb (Set_CPP_Constructors): Handle constructor with default
	parameters that covers the default constructor.

2012-10-02  Yannick Moy  <moy@adacore.com>

	* s-bignum.adb: Minor stylistic and comment corrections.

2012-10-02  Pascal Obry  <obry@adacore.com>

	* prj-util.adb (For_Interface_Sources): Iterate over all sources in
	aggregate library projects.

From-SVN: r191977

gcc/ada/ChangeLog

@@ -1,3 +1,21 @@
+2012-10-02  Robert Dewar  <dewar@adacore.com>
+
+	* sem_ch8.adb: Minor reformatting.
+
+2012-10-02  Javier Miranda  <miranda@adacore.com>
+
+	* exp_disp.adb (Set_CPP_Constructors): Handle constructor with default
+	parameters that covers the default constructor.
+
+2012-10-02  Yannick Moy  <moy@adacore.com>
+
+	* s-bignum.adb: Minor stylistic and comment corrections.
+
+2012-10-02  Pascal Obry  <obry@adacore.com>
+
+	* prj-util.adb (For_Interface_Sources): Iterate over all sources in
+	aggregate library projects.
+
 2012-10-02  Ed Schonberg  <schonberg@adacore.com>
 
 	* sem_ch8.adb (Find_Direct_Name): The left-hand side of an

gcc/ada/exp_disp.adb

@@ -8537,6 +8537,10 @@ package body Exp_Disp is
       Body_Stmts            : List_Id;
       Init_Tags_List        : List_Id;
 
+      Covers_Default_Constructor : Entity_Id := Empty;
+
+   --  Start of processing for Set_CPP_Constructor
+
    begin
       pragma Assert (Is_CPP_Class (Typ));
 
@@ -8622,7 +8626,9 @@ package body Exp_Disp is
                       Defining_Identifier =>
                         Make_Defining_Identifier (Loc,
                           Chars (Defining_Identifier (P))),
-                      Parameter_Type => New_Copy_Tree (Parameter_Type (P))));
+                      Parameter_Type      =>
+                        New_Copy_Tree (Parameter_Type (P)),
+                      Expression          => New_Copy_Tree (Expression (P))));
                   Next (P);
                end loop;
             end if;
@@ -8713,6 +8719,17 @@ package body Exp_Disp is
 
             Discard_Node (Wrapper_Body_Node);
             Set_Init_Proc (Typ, Wrapper_Id);
+
+            --  If this constructor has parameters and all its parameters
+            --  have defaults then it covers the default constructor. The
+            --  semantic analyzer ensures that only one constructor with
+            --  defaults covers the default constructor.
+
+            if Present (Parameter_Specifications (Parent (E)))
+              and then Needs_No_Actuals (E)
+            then
+               Covers_Default_Constructor := Wrapper_Id;
+            end if;
          end if;
 
          Next_Entity (E);
@@ -8725,6 +8742,46 @@ package body Exp_Disp is
          Set_Is_Abstract_Type (Typ);
       end if;
 
+      --  Handle constructor that has all its parameters with defaults and
+      --  hence it covers the default constructor. We generate a wrapper IP
+      --  which calls the covering constructor.
+
+      if Present (Covers_Default_Constructor) then
+         Loc := Sloc (Covers_Default_Constructor);
+
+         Body_Stmts := New_List (
+           Make_Procedure_Call_Statement (Loc,
+             Name                   =>
+               New_Reference_To (Covers_Default_Constructor, Loc),
+             Parameter_Associations => New_List (
+               Make_Identifier (Loc, Name_uInit))));
+
+         Wrapper_Id :=
+           Make_Defining_Identifier (Loc, Make_Init_Proc_Name (Typ));
+
+         Wrapper_Body_Node :=
+           Make_Subprogram_Body (Loc,
+             Specification              =>
+               Make_Procedure_Specification (Loc,
+                 Defining_Unit_Name       => Wrapper_Id,
+                 Parameter_Specifications => New_List (
+                   Make_Parameter_Specification (Loc,
+                     Defining_Identifier =>
+                       Make_Defining_Identifier (Loc, Name_uInit),
+                     Parameter_Type      =>
+                       New_Reference_To (Typ, Loc)))),
+
+             Declarations               => No_List,
+
+             Handled_Statement_Sequence =>
+               Make_Handled_Sequence_Of_Statements (Loc,
+                 Statements         => Body_Stmts,
+                 Exception_Handlers => No_List));
+
+         Discard_Node (Wrapper_Body_Node);
+         Set_Init_Proc (Typ, Wrapper_Id);
+      end if;
+
       --  If the CPP type has constructors then it must import also the default
       --  C++ constructor. It is required for default initialization of objects
       --  of the type. It is also required to elaborate objects of Ada types

gcc/ada/prj-util.adb

@@ -439,7 +439,7 @@ package body Prj.Util is
 
       --  Local declarations
 
-      Iter : Source_Iterator := For_Each_Source (Tree, Project);
+      Iter : Source_Iterator;
       Sid  : Source_Id;
       ALI  : ALI_Id;
 
@@ -451,6 +451,12 @@ package body Prj.Util is
    --  Start of processing for For_Interface_Sources
 
    begin
+      if Project.Qualifier = Aggregate_Library then
+         Iter := For_Each_Source (Tree);
+      else
+         Iter := For_Each_Source (Tree, Project);
+      end if;
+
       --  First look at each spec, check if the body is needed
 
       loop

gcc/ada/s-bignum.adb

@@ -98,7 +98,7 @@ package body System.Bignums is
 
    procedure Free_Bignum (X : Bignum) is null;
    --  Called to free a Bignum value used in intermediate computations. In
-   --  this implementation using the secondary stack, does nothing at all,
+   --  this implementation using the secondary stack, it does nothing at all,
    --  because we rely on Mark/Release, but it may be of use for some
    --  alternative implementation.
 
@@ -115,12 +115,12 @@ package body System.Bignums is
 
    function Add (X, Y : Digit_Vector; X_Neg, Y_Neg : Boolean) return Bignum is
    begin
-      --  If signs are the same we are doing an addition, it is convenient to
+      --  If signs are the same, we are doing an addition, it is convenient to
-      --  ensure that the first operand is the longer of the two,
+      --  ensure that the first operand is the longer of the two.
 
       if X_Neg = Y_Neg then
          if X'Last < Y'Last then
-            return Add (Y => X, X => Y, X_Neg => Y_Neg, Y_Neg => X_Neg);
+            return Add (X => Y, Y => X, X_Neg => Y_Neg, Y_Neg => X_Neg);
 
          --  Here signs are the same, and the first operand is the longer
 
@@ -151,9 +151,9 @@ package body System.Bignums is
             end;
          end if;
 
-         --  Signs are different so really this is an subtraction, we want to
+      --  Signs are different so really this is a subtraction, we want to make
-         --  make sure that the largest magnitude operand is the first one, and
+      --  sure that the largest magnitude operand is the first one, and then
-         --  then the result will have the sign of the first operand.
+      --  the result will have the sign of the first operand.
 
       else
          declare
@@ -164,7 +164,7 @@ package body System.Bignums is
                return Normalize (Zero_Data);
 
             elsif CR = LT then
-               return Add (Y => X, X => Y, X_Neg => Y_Neg, Y_Neg => X_Neg);
+               return Add (X => Y, Y => X, X_Neg => Y_Neg, Y_Neg => X_Neg);
 
             else
                pragma Assert (X_Neg /= Y_Neg and then CR = GT);
@@ -474,7 +474,7 @@ package body System.Bignums is
       if X.Neg = Y.Neg then
          return Big_Rem (X, Y);
 
-      --  Case where mod is different
+      --  Case where Mod is different
 
       else
          --  Do division
@@ -668,7 +668,7 @@ package body System.Bignums is
          Quotient  := Normalize (Zero_Data);
          return;
 
-      --  If both X and Y are comfortably less than 2**63-1 we can just use
+      --  If both X and Y are comfortably less than 2**63-1, we can just use
       --  Long_Long_Integer arithmetic. Note it is good not to do an accurate
       --  range check here since -2**63 / -1 overflows!
 

gcc/ada/sem_ch8.adb

@@ -5027,8 +5027,7 @@ package body Sem_Ch8 is
             if Ada_Version >= Ada_2012
               and then
                 (Nkind (Parent (N)) in N_Subexpr
-                  or else
+                  or else Nkind_In (Parent (N), N_Object_Declaration,
-                    Nkind_In (Parent (N), N_Object_Declaration,
                                                 N_Assignment_Statement))
             then
                Check_Implicit_Dereference (N, Etype (E));