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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . G E N E R I C _ R E A L _ L A P A C K --
-- --
-- S p e c --
-- --
-- Copyright (C) 2006-2007, 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- --
-- 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. --
-- --
-- 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. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- Package comment required ???
generic
type Real is digits <>;
type Real_Vector is array (Integer range <>) of Real;
type Real_Matrix is array (Integer range <>, Integer range <>) of Real;
package System.Generic_Real_LAPACK is
pragma Pure;
type Integer_Vector is array (Integer range <>) of Integer;
Upper : aliased constant Character := 'U';
Lower : aliased constant Character := 'L';
-- LAPACK Computational Routines
-- gerfs Refines the solution of a system of linear equations with
-- a general matrix and estimates its error
-- getrf Computes LU factorization of a general m-by-n matrix
-- getri Computes inverse of an LU-factored general matrix
-- square matrix, with multiple right-hand sides
-- getrs Solves a system of linear equations with an LU-factored
-- square matrix, with multiple right-hand sides
-- orgtr Generates the Float orthogonal matrix Q determined by sytrd
-- steqr Computes all eigenvalues and eigenvectors of a symmetric or
-- Hermitian matrix reduced to tridiagonal form (QR algorithm)
-- sterf Computes all eigenvalues of a Float symmetric
-- tridiagonal matrix using QR algorithm
-- sytrd Reduces a Float symmetric matrix to tridiagonal form
procedure getrf
(M : Natural;
N : Natural;
A : in out Real_Matrix;
Ld_A : Positive;
I_Piv : out Integer_Vector;
Info : access Integer);
procedure getri
(N : Natural;
A : in out Real_Matrix;
Ld_A : Positive;
I_Piv : Integer_Vector;
Work : in out Real_Vector;
L_Work : Integer;
Info : access Integer);
procedure getrs
(Trans : access constant Character;
N : Natural;
N_Rhs : Natural;
A : Real_Matrix;
Ld_A : Positive;
I_Piv : Integer_Vector;
B : in out Real_Matrix;
Ld_B : Positive;
Info : access Integer);
procedure orgtr
(Uplo : access constant Character;
N : Natural;
A : in out Real_Matrix;
Ld_A : Positive;
Tau : Real_Vector;
Work : out Real_Vector;
L_Work : Integer;
Info : access Integer);
procedure sterf
(N : Natural;
D : in out Real_Vector;
E : in out Real_Vector;
Info : access Integer);
procedure steqr
(Comp_Z : access constant Character;
N : Natural;
D : in out Real_Vector;
E : in out Real_Vector;
Z : in out Real_Matrix;
Ld_Z : Positive;
Work : out Real_Vector;
Info : access Integer);
procedure sytrd
(Uplo : access constant Character;
N : Natural;
A : in out Real_Matrix;
Ld_A : Positive;
D : out Real_Vector;
E : out Real_Vector;
Tau : out Real_Vector;
Work : out Real_Vector;
L_Work : Integer;
Info : access Integer);
end System.Generic_Real_LAPACK;
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