gcc/ada/s-gerebl.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT RUN-TIME COMPONENTS                         --
   4 --                                                                          --
   5 --                         SYSTEM.GENERIC_REAL_BLAS                         --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --            Copyright (C) 2006, 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_BLAS is
  41    pragma Pure;
  42
  43    --  Although BLAS support is only available for IEEE single and double
  44    --  compatible floating-point types, this unit will accept any type
  45    --  and apply conversions as necessary, with possible loss of
  46    --  precision and range.
  47
  48    No_Trans   : aliased constant Character := 'N';
  49    Trans      : aliased constant Character := 'T';
  50    Conj_Trans : aliased constant Character := 'C';
  51
  52    --  BLAS Level 1 Subprograms and Types
  53
  54    function dot
  55      (N     : Positive;
  56       X     : Real_Vector;
  57       Inc_X : Integer := 1;
  58       Y     : Real_Vector;
  59       Inc_Y : Integer := 1) return Real;
  60
  61    function nrm2
  62      (N     : Natural;
  63       X     : Real_Vector;
  64       Inc_X : Integer := 1) return Real;
  65
  66    procedure gemv
  67      (Trans : access constant Character;
  68       M     : Natural := 0;
  69       N     : Natural := 0;
  70       Alpha : Real := 1.0;
  71       A     : Real_Matrix;
  72       Ld_A  : Positive;
  73       X     : Real_Vector;
  74       Inc_X : Integer := 1;  -- must be non-zero
  75       Beta  : Real := 0.0;
  76       Y     : in out Real_Vector;
  77       Inc_Y : Integer := 1); -- must be non-zero
  78
  79    --  BLAS Level 3
  80
  81    --  gemm   s, d, c, z  Matrix-matrix product of general matrices
  82
  83    procedure gemm
  84      (Trans_A : access constant Character;
  85       Trans_B : access constant Character;
  86       M       : Positive;
  87       N       : Positive;
  88       K       : Positive;
  89       Alpha   : Real := 1.0;
  90       A       : Real_Matrix;
  91       Ld_A    : Integer;
  92       B       : Real_Matrix;
  93       Ld_B    : Integer;
  94       Beta    : Real := 0.0;
  95       C       : in out Real_Matrix;
  96       Ld_C    : Integer);
  97
  98 end System.Generic_Real_BLAS;