obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 396 insertions, 0 deletions

diff --git a/gcc/ada/s-gearop.ads b/gcc/ada/s-gearop.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--       S Y S T E M . G E N E R I C _ A R R A Y _ O P E R A T I O N S      --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 2006-2009, 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- --
+-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
+--                                                                          --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception,   --
+-- version 3.1, as published by the Free Software Foundation.               --
+--                                                                          --
+-- You should have received a copy of the GNU General Public License and    --
+-- a copy of the GCC Runtime Library Exception along with this program;     --
+-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
+-- <http://www.gnu.org/licenses/>.                                          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+package System.Generic_Array_Operations is
+pragma Pure (Generic_Array_Operations);
+
+   --------------------------
+   -- Square_Matrix_Length --
+   --------------------------
+
+   generic
+      type Scalar is private;
+      type Matrix is array (Integer range <>, Integer range <>) of Scalar;
+   function Square_Matrix_Length (A : Matrix) return Natural;
+   --  If A is non-square, raise Constraint_Error,  else return its dimension
+
+   ----------------------------------
+   -- Vector_Elementwise_Operation --
+   ----------------------------------
+
+   generic
+      type X_Scalar is private;
+      type Result_Scalar is private;
+      type X_Vector is array (Integer range <>) of X_Scalar;
+      type Result_Vector is array (Integer range <>) of Result_Scalar;
+      with function Operation (X : X_Scalar) return Result_Scalar;
+   function Vector_Elementwise_Operation (X : X_Vector) return Result_Vector;
+
+   ----------------------------------
+   -- Matrix_Elementwise_Operation --
+   ----------------------------------
+
+   generic
+      type X_Scalar is private;
+      type Result_Scalar is private;
+      type X_Matrix is array (Integer range <>, Integer range <>) of X_Scalar;
+      type Result_Matrix is array (Integer range <>, Integer range <>)
+        of Result_Scalar;
+      with function Operation (X : X_Scalar) return Result_Scalar;
+   function Matrix_Elementwise_Operation (X : X_Matrix) return Result_Matrix;
+
+   -----------------------------------------
+   -- Vector_Vector_Elementwise_Operation --
+   -----------------------------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Left_Vector is array (Integer range <>) of Left_Scalar;
+      type Right_Vector is array (Integer range <>) of Right_Scalar;
+      type Result_Vector is array (Integer range <>) of Result_Scalar;
+      with function Operation
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar;
+   function Vector_Vector_Elementwise_Operation
+     (Left  : Left_Vector;
+      Right : Right_Vector) return Result_Vector;
+
+   ------------------------------------------------
+   -- Vector_Vector_Scalar_Elementwise_Operation --
+   ------------------------------------------------
+
+   generic
+      type X_Scalar is private;
+      type Y_Scalar is private;
+      type Z_Scalar is private;
+      type Result_Scalar is private;
+      type X_Vector is array (Integer range <>) of X_Scalar;
+      type Y_Vector is array (Integer range <>) of Y_Scalar;
+      type Result_Vector is array (Integer range <>) of Result_Scalar;
+      with function Operation
+             (X : X_Scalar;
+              Y : Y_Scalar;
+              Z : Z_Scalar) return Result_Scalar;
+   function Vector_Vector_Scalar_Elementwise_Operation
+     (X : X_Vector;
+      Y : Y_Vector;
+      Z : Z_Scalar) return Result_Vector;
+
+   -----------------------------------------
+   -- Matrix_Matrix_Elementwise_Operation --
+   -----------------------------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Left_Matrix is array (Integer range <>, Integer range <>)
+        of Left_Scalar;
+      type Right_Matrix is array (Integer range <>, Integer range <>)
+        of Right_Scalar;
+      type Result_Matrix is array (Integer range <>, Integer range <>)
+        of Result_Scalar;
+      with function Operation
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar;
+   function Matrix_Matrix_Elementwise_Operation
+     (Left  : Left_Matrix;
+      Right : Right_Matrix) return Result_Matrix;
+
+   ------------------------------------------------
+   -- Matrix_Matrix_Scalar_Elementwise_Operation --
+   ------------------------------------------------
+
+   generic
+      type X_Scalar is private;
+      type Y_Scalar is private;
+      type Z_Scalar is private;
+      type Result_Scalar is private;
+      type X_Matrix is array (Integer range <>, Integer range <>) of X_Scalar;
+      type Y_Matrix is array (Integer range <>, Integer range <>) of Y_Scalar;
+      type Result_Matrix is array (Integer range <>, Integer range <>)
+        of Result_Scalar;
+      with function Operation
+             (X : X_Scalar;
+              Y : Y_Scalar;
+              Z : Z_Scalar) return Result_Scalar;
+   function Matrix_Matrix_Scalar_Elementwise_Operation
+     (X : X_Matrix;
+      Y : Y_Matrix;
+      Z : Z_Scalar) return Result_Matrix;
+
+   -----------------------------------------
+   -- Vector_Scalar_Elementwise_Operation --
+   -----------------------------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Left_Vector is array (Integer range <>) of Left_Scalar;
+      type Result_Vector is array (Integer range <>) of Result_Scalar;
+      with function Operation
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar;
+   function Vector_Scalar_Elementwise_Operation
+     (Left  : Left_Vector;
+      Right : Right_Scalar) return Result_Vector;
+
+   -----------------------------------------
+   -- Matrix_Scalar_Elementwise_Operation --
+   -----------------------------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Left_Matrix is array (Integer range <>, Integer range <>)
+        of Left_Scalar;
+      type Result_Matrix is array (Integer range <>, Integer range <>)
+        of Result_Scalar;
+      with function Operation
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar;
+   function Matrix_Scalar_Elementwise_Operation
+     (Left  : Left_Matrix;
+      Right : Right_Scalar) return Result_Matrix;
+
+   -----------------------------------------
+   -- Scalar_Vector_Elementwise_Operation --
+   -----------------------------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Right_Vector is array (Integer range <>) of Right_Scalar;
+      type Result_Vector is array (Integer range <>) of Result_Scalar;
+      with function Operation
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar;
+   function Scalar_Vector_Elementwise_Operation
+     (Left  : Left_Scalar;
+      Right : Right_Vector) return Result_Vector;
+
+   -----------------------------------------
+   -- Scalar_Matrix_Elementwise_Operation --
+   -----------------------------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Right_Matrix is array (Integer range <>, Integer range <>)
+        of Right_Scalar;
+      type Result_Matrix is array (Integer range <>, Integer range <>)
+        of Result_Scalar;
+      with function Operation
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar;
+   function Scalar_Matrix_Elementwise_Operation
+     (Left  : Left_Scalar;
+      Right : Right_Matrix) return Result_Matrix;
+
+   -------------------
+   -- Inner_Product --
+   -------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Left_Vector is array (Integer range <>) of Left_Scalar;
+      type Right_Vector is array (Integer range <>) of Right_Scalar;
+      Zero : Result_Scalar;
+      with function "*"
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar is <>;
+      with function "+"
+             (Left  : Result_Scalar;
+              Right : Result_Scalar) return Result_Scalar is <>;
+   function Inner_Product
+     (Left  : Left_Vector;
+      Right : Right_Vector) return Result_Scalar;
+
+   -------------------
+   -- Outer_Product --
+   -------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Left_Vector is array (Integer range <>) of Left_Scalar;
+      type Right_Vector is array (Integer range <>) of Right_Scalar;
+      type Matrix is array (Integer range <>, Integer range <>)
+        of Result_Scalar;
+      with function "*"
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar is <>;
+   function Outer_Product
+     (Left  : Left_Vector;
+      Right : Right_Vector) return Matrix;
+
+   ---------------------------
+   -- Matrix_Vector_Product --
+   ---------------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Matrix is array (Integer range <>, Integer range <>)
+        of Left_Scalar;
+      type Right_Vector is array (Integer range <>) of Right_Scalar;
+      type Result_Vector is array (Integer range <>) of Result_Scalar;
+      Zero : Result_Scalar;
+      with function "*"
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar is <>;
+      with function "+"
+             (Left  : Result_Scalar;
+              Right : Result_Scalar) return Result_Scalar is <>;
+   function Matrix_Vector_Product
+     (Left  : Matrix;
+      Right : Right_Vector) return Result_Vector;
+
+   ---------------------------
+   -- Vector_Matrix_Product --
+   ---------------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Left_Vector is array (Integer range <>) of Left_Scalar;
+      type Matrix is array (Integer range <>, Integer range <>)
+        of Right_Scalar;
+      type Result_Vector is array (Integer range <>) of Result_Scalar;
+      Zero : Result_Scalar;
+      with function "*"
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar is <>;
+      with function "+"
+             (Left  : Result_Scalar;
+              Right : Result_Scalar) return Result_Scalar is <>;
+   function Vector_Matrix_Product
+     (Left  : Left_Vector;
+      Right : Matrix) return Result_Vector;
+
+   ---------------------------
+   -- Matrix_Matrix_Product --
+   ---------------------------
+
+   generic
+      type Left_Scalar is private;
+      type Right_Scalar is private;
+      type Result_Scalar is private;
+      type Left_Matrix is array (Integer range <>, Integer range <>)
+        of Left_Scalar;
+      type Right_Matrix is array (Integer range <>, Integer range <>)
+        of Right_Scalar;
+      type Result_Matrix is array (Integer range <>, Integer range <>)
+        of Result_Scalar;
+      Zero : Result_Scalar;
+      with function "*"
+             (Left  : Left_Scalar;
+              Right : Right_Scalar) return Result_Scalar is <>;
+      with function "+"
+             (Left  : Result_Scalar;
+              Right : Result_Scalar) return Result_Scalar is <>;
+   function Matrix_Matrix_Product
+     (Left  : Left_Matrix;
+      Right : Right_Matrix) return Result_Matrix;
+
+   ---------------
+   -- Transpose --
+   ---------------
+
+   generic
+      type Scalar is private;
+      type Matrix is array (Integer range <>, Integer range <>) of Scalar;
+   procedure Transpose (A : Matrix; R : out Matrix);
+
+   -------------------------------
+   -- Update_Vector_With_Vector --
+   -------------------------------
+
+   generic
+      type X_Scalar is private;
+      type Y_Scalar is private;
+      type X_Vector is array (Integer range <>) of X_Scalar;
+      type Y_Vector is array (Integer range <>) of Y_Scalar;
+      with procedure Update (X : in out X_Scalar; Y : Y_Scalar);
+   procedure Update_Vector_With_Vector (X : in out X_Vector; Y : Y_Vector);
+
+   -------------------------------
+   -- Update_Matrix_With_Matrix --
+   -------------------------------
+
+   generic
+      type X_Scalar is private;
+      type Y_Scalar is private;
+      type X_Matrix is array (Integer range <>, Integer range <>) of X_Scalar;
+      type Y_Matrix is array (Integer range <>, Integer range <>) of Y_Scalar;
+      with procedure Update (X : in out X_Scalar; Y : Y_Scalar);
+   procedure Update_Matrix_With_Matrix (X : in out X_Matrix; Y : Y_Matrix);
+
+   -----------------
+   -- Unit_Matrix --
+   -----------------
+
+   generic
+      type Scalar is private;
+      type Matrix is array (Integer range <>, Integer range <>) of Scalar;
+      Zero : Scalar;
+      One  : Scalar;
+   function Unit_Matrix
+     (Order   : Positive;
+      First_1 : Integer := 1;
+      First_2 : Integer := 1) return Matrix;
+
+   -----------------
+   -- Unit_Vector --
+   -----------------
+
+   generic
+      type Scalar is private;
+      type Vector is array (Integer range <>) of Scalar;
+      Zero : Scalar;
+      One  : Scalar;
+   function Unit_Vector
+     (Index : Integer;
+      Order : Positive;
+      First : Integer := 1) return Vector;
+
+end System.Generic_Array_Operations;