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------------------------------------------------------------------------------

--                                                                          --

--                         GNAT RUN-TIME COMPONENTS                         --

--                                                                          --

--           S Y S T E M . G E N E R I C _ C O M P L E X _ B L A 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 comment required ???

with Ada.Numerics.Generic_Complex_Types;

generic

   type Real is digits <>;

   with package Complex_Types is new Ada.Numerics.Generic_Complex_Types (Real);

   use Complex_Types;

   type Complex_Vector is array (Integer range <>) of Complex;

   type Complex_Matrix is array (Integer range <>, Integer range <>)

      of Complex;

package System.Generic_Complex_BLAS is

   pragma Pure;

   --  Although BLAS support is only available for IEEE single and double

   --  compatible floating-point types, this unit will accept any type

   --  and apply conversions as necessary, with possible loss of

   --  precision and range.

   No_Trans   : aliased constant Character := 'N';

   Trans      : aliased constant Character := 'T';

   Conj_Trans : aliased constant Character := 'C';

   --  BLAS Level 1 Subprograms and Types

   function dot

     (N     : Positive;

      X     : Complex_Vector;

      Inc_X : Integer := 1;

      Y     : Complex_Vector;

      Inc_Y : Integer := 1) return Complex;

   function nrm2

     (N     : Natural;

      X     : Complex_Vector;

      Inc_X : Integer := 1) return Real;

   procedure gemv

     (Trans : access constant Character;

      M     : Natural := 0;

      N     : Natural := 0;

      Alpha : Complex := (1.0, 0.0);

      A     : Complex_Matrix;

      Ld_A  : Positive;

      X     : Complex_Vector;

      Inc_X : Integer := 1;  -- must be non-zero

      Beta  : Complex := (0.0, 0.0);

      Y     : in out Complex_Vector;

      Inc_Y : Integer := 1); -- must be non-zero

   --  BLAS Level 3

   --  gemm   s, d, c, z  Matrix-matrix product of general matrices

   procedure gemm

     (Trans_A : access constant Character;

      Trans_B : access constant Character;

      M       : Positive;

      N       : Positive;

      K       : Positive;

      Alpha   : Complex := (1.0, 0.0);

      A       : Complex_Matrix;

      Ld_A    : Integer;

      B       : Complex_Matrix;

      Ld_B    : Integer;

      Beta    : Complex := (0.0, 0.0);

      C       : in out Complex_Matrix;

      Ld_C    : Integer);

end System.Generic_Complex_BLAS;