2010-01-27 Vincent Celier <celier@adacore.com>

[pf3gnuchains/gcc-fork.git] / gcc / ada / a-ngrear.adb

diff --git a/gcc/ada/a-ngrear.adb b/gcc/ada/a-ngrear.adb
index 2ff5d01..5c8a009 100644 (file)
--- a/gcc/ada/a-ngrear.adb
+++ b/gcc/ada/a-ngrear.adb
@@ -6,25 +6,23 @@
 --                                                                          --
 --                                 B o d y                                  --
 --                                                                          --
---            Copyright (C) 2006, Free Software Foundation, Inc.            --
+--          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 2,  or (at your option) any later ver- --
+-- 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.  See the GNU General Public License --
--- for  more details.  You should have  received  a copy of the GNU General --
--- Public License  distributed with GNAT;  see file COPYING.  If not, write --
--- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
--- Boston, MA 02110-1301, USA.                                              --
+-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
 --                                                                          --
--- As a special exception,  if other files  instantiate  generics from this --
--- unit, or you link  this unit with other files  to produce an executable, --
--- this  unit  does not  by itself cause  the resulting  executable  to  be --
--- covered  by the  GNU  General  Public  License.  This exception does not --
--- however invalidate  any other reasons why  the executable file  might be --
--- covered by the  GNU Public License.                                      --
+-- 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.      --
@@ -368,7 +366,7 @@ package body Ada.Numerics.Generic_Real_Arrays is
    begin
       if Left'Length (2) /= Right'Length (1) then
          raise Constraint_Error with
-            "incompatible dimensions in matrix-matrix multipication";
+            "incompatible dimensions in matrix-matrix multiplication";
       end if;
 
       gemm (Trans_A => No_Trans'Access,
@@ -435,11 +433,7 @@ package body Ada.Numerics.Generic_Real_Arrays is
       end if;
 
       for J in 1 .. N loop
-         if Piv (J) /= J then
-            Det := -Det * LU (J, J);
-         else
-            Det := Det * LU (J, J);
-         end if;
+         Det := (if Piv (J) /= J then -Det * LU (J, J) else Det * LU (J, J));
       end loop;
 
       return Det;
@@ -455,11 +449,13 @@ package body Ada.Numerics.Generic_Real_Arrays is
       Vectors : out Real_Matrix)
    is
       N      : constant Natural := Length (A);
-      E      : Real_Vector (1 .. N);
       Tau    : Real_Vector (1 .. N);
       L_Work : Real_Vector (1 .. 1);
       Info   : aliased Integer;
 
+      E : Real_Vector (1 .. N);
+      pragma Warnings (Off, E);
+
    begin
       if Values'Length /= N then
          raise Constraint_Error with "wrong length for output vector";
@@ -491,7 +487,9 @@ package body Ada.Numerics.Generic_Real_Arrays is
              Info   => Info'Access);
 
       declare
-         Work   : Real_Vector (1 .. Integer'Max (Integer (L_Work (1)), 2 * N));
+         Work : Real_Vector (1 .. Integer'Max (Integer (L_Work (1)), 2 * N));
+         pragma Warnings (Off, Work);
+
          Comp_Z : aliased constant Character := 'V';
 
       begin
@@ -554,12 +552,16 @@ package body Ada.Numerics.Generic_Real_Arrays is
       Values : out Real_Vector)
    is
       N      : constant Natural := Length (A);
-      B      : Real_Matrix (1 .. N, 1 .. N);
-      E      : Real_Vector (1 .. N);
-      Tau    : Real_Vector (1 .. N);
       L_Work : Real_Vector (1 .. 1);
       Info   : aliased Integer;
 
+      B   : Real_Matrix (1 .. N, 1 .. N);
+      Tau : Real_Vector (1 .. N);
+      E   : Real_Vector (1 .. N);
+      pragma Warnings (Off, B);
+      pragma Warnings (Off, Tau);
+      pragma Warnings (Off, E);
+
    begin
       if Values'Length /= N then
          raise Constraint_Error with "wrong length for output vector";
@@ -592,6 +594,7 @@ package body Ada.Numerics.Generic_Real_Arrays is
 
       declare
          Work : Real_Vector (1 .. Integer'Min (Integer (L_Work (1)), 4 * N));
+         pragma Warnings (Off, Work);
 
       begin
          --  Reduce matrix to tridiagonal form
@@ -677,6 +680,8 @@ package body Ada.Numerics.Generic_Real_Arrays is
 
       declare
          Work : Real_Vector (1 .. Integer (L_Work (1)));
+         pragma Warnings (Off, Work);
+
       begin
          --  Compute inverse from LU decomposition