gcc/ada/s-gerela.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --           S Y S T E M . G E N E R I C _ R E A L _ L A P A C K            --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2006-2007, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- As a special exception,  if other files  instantiate  generics from this --
  23 -- unit, or you link  this unit with other files  to produce an executable, --
  24 -- this  unit  does not  by itself cause  the resulting  executable  to  be --
  25 -- covered  by the  GNU  General  Public  License.  This exception does not --
  26 -- however invalidate  any other reasons why  the executable file  might be --
  27 -- covered by the  GNU Public License.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  34 --  Package comment required ???
  35
  36 generic
  37    type Real is digits <>;
  38    type Real_Vector is array (Integer range <>) of Real;
  39    type Real_Matrix is array (Integer range <>, Integer range <>) of Real;
  40 package System.Generic_Real_LAPACK is
  41    pragma Pure;
  42
  43    type Integer_Vector is array (Integer range <>) of Integer;
  44
  45    Upper : aliased constant Character := 'U';
  46    Lower : aliased constant Character := 'L';
  47
  48    --  LAPACK Computational Routines
  49
  50    --  gerfs  Refines the solution of a system of linear equations with
  51    --         a general matrix and estimates its error
  52    --  getrf  Computes LU factorization of a general m-by-n matrix
  53    --  getri  Computes inverse of an LU-factored general matrix
  54    --         square matrix, with multiple right-hand sides
  55    --  getrs  Solves a system of linear equations with an LU-factored
  56    --         square matrix, with multiple right-hand sides
  57    --  orgtr  Generates the Float orthogonal matrix Q determined by sytrd
  58    --  steqr  Computes all eigenvalues and eigenvectors of a symmetric or
  59    --         Hermitian matrix reduced to tridiagonal form (QR algorithm)
  60    --  sterf  Computes all eigenvalues of a Float symmetric
  61    --         tridiagonal matrix using QR algorithm
  62    --  sytrd  Reduces a Float symmetric matrix to tridiagonal form
  63
  64    procedure getrf
  65      (M     : Natural;
  66       N     : Natural;
  67       A     : in out Real_Matrix;
  68       Ld_A  : Positive;
  69       I_Piv : out Integer_Vector;
  70       Info  : access Integer);
  71
  72    procedure getri
  73      (N      : Natural;
  74       A      : in out Real_Matrix;
  75       Ld_A   : Positive;
  76       I_Piv  : Integer_Vector;
  77       Work   : in out Real_Vector;
  78       L_Work : Integer;
  79       Info   : access Integer);
  80
  81    procedure getrs
  82      (Trans  : access constant Character;
  83       N      : Natural;
  84       N_Rhs  : Natural;
  85       A      : Real_Matrix;
  86       Ld_A   : Positive;
  87       I_Piv  : Integer_Vector;
  88       B      : in out Real_Matrix;
  89       Ld_B   : Positive;
  90       Info   : access Integer);
  91
  92    procedure orgtr
  93      (Uplo   : access constant Character;
  94       N      : Natural;
  95       A      : in out Real_Matrix;
  96       Ld_A   : Positive;
  97       Tau    : Real_Vector;
  98       Work   : out Real_Vector;
  99       L_Work : Integer;
 100       Info   : access Integer);
 101
 102    procedure sterf
 103      (N      : Natural;
 104       D      : in out Real_Vector;
 105       E      : in out Real_Vector;
 106       Info   : access Integer);
 107
 108    procedure steqr
 109      (Comp_Z : access constant Character;
 110       N      : Natural;
 111       D      : in out Real_Vector;
 112       E      : in out Real_Vector;
 113       Z      : in out Real_Matrix;
 114       Ld_Z   : Positive;
 115       Work   : out Real_Vector;
 116       Info   : access Integer);
 117
 118    procedure sytrd
 119      (Uplo   : access constant Character;
 120       N      : Natural;
 121       A      : in out Real_Matrix;
 122       Ld_A   : Positive;
 123       D      : out Real_Vector;
 124       E      : out Real_Vector;
 125       Tau    : out Real_Vector;
 126       Work   : out Real_Vector;
 127       L_Work : Integer;
 128       Info   : access Integer);
 129
 130 end System.Generic_Real_LAPACK;