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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- I N T E R F A C E S . F O R T R A N . B L A S --
-- --
-- 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. --
-- --
------------------------------------------------------------------------------
-- This package provides a thin binding to the standard Fortran BLAS library.
-- Documentation and a reference BLAS implementation is available from
-- ftp://ftp.netlib.org. The main purpose of this package is to facilitate
-- implementation of the Ada 2005 Ada.Numerics.Generic_Real_Arrays and
-- Ada.Numerics.Generic_Complex_Arrays packages. Bindings to other BLAS
-- routines may be added over time.
-- As actual linker arguments to link with the BLAS implementation differs
-- according to platform and chosen BLAS implementation, the linker arguments
-- are given in the body of this package. The body may need to be modified in
-- order to link with different BLAS implementations tuned to the specific
-- target.
package Interfaces.Fortran.BLAS is
pragma Pure;
pragma Elaborate_Body;
No_Trans : aliased constant Character := 'N';
Trans : aliased constant Character := 'T';
Conj_Trans : aliased constant Character := 'C';
-- Vector types
type Real_Vector is array (Integer range <>) of Real;
type Complex_Vector is array (Integer range <>) of Complex;
type Double_Precision_Vector is array (Integer range <>)
of Double_Precision;
type Double_Complex_Vector is array (Integer range <>) of Double_Complex;
-- Matrix types
type Real_Matrix is array (Integer range <>, Integer range <>)
of Real;
type Double_Precision_Matrix is array (Integer range <>, Integer range <>)
of Double_Precision;
type Complex_Matrix is array (Integer range <>, Integer range <>)
of Complex;
type Double_Complex_Matrix is array (Integer range <>, Integer range <>)
of Double_Complex;
-- BLAS Level 1
function sdot
(N : Positive;
X : Real_Vector;
Inc_X : Integer := 1;
Y : Real_Vector;
Inc_Y : Integer := 1) return Real;
function ddot
(N : Positive;
X : Double_Precision_Vector;
Inc_X : Integer := 1;
Y : Double_Precision_Vector;
Inc_Y : Integer := 1) return Double_Precision;
function cdotu
(N : Positive;
X : Complex_Vector;
Inc_X : Integer := 1;
Y : Complex_Vector;
Inc_Y : Integer := 1) return Complex;
function zdotu
(N : Positive;
X : Double_Complex_Vector;
Inc_X : Integer := 1;
Y : Double_Complex_Vector;
Inc_Y : Integer := 1) return Double_Complex;
function snrm2
(N : Natural;
X : Real_Vector;
Inc_X : Integer := 1) return Real;
function dnrm2
(N : Natural;
X : Double_Precision_Vector;
Inc_X : Integer := 1) return Double_Precision;
function scnrm2
(N : Natural;
X : Complex_Vector;
Inc_X : Integer := 1) return Real;
function dznrm2
(N : Natural;
X : Double_Complex_Vector;
Inc_X : Integer := 1) return Double_Precision;
-- BLAS Level 2
procedure sgemv
(Trans : access constant Character;
M : Natural := 0;
N : Natural := 0;
Alpha : Real := 1.0;
A : Real_Matrix;
Ld_A : Positive;
X : Real_Vector;
Inc_X : Integer := 1; -- must be non-zero
Beta : Real := 0.0;
Y : in out Real_Vector;
Inc_Y : Integer := 1); -- must be non-zero
procedure dgemv
(Trans : access constant Character;
M : Natural := 0;
N : Natural := 0;
Alpha : Double_Precision := 1.0;
A : Double_Precision_Matrix;
Ld_A : Positive;
X : Double_Precision_Vector;
Inc_X : Integer := 1; -- must be non-zero
Beta : Double_Precision := 0.0;
Y : in out Double_Precision_Vector;
Inc_Y : Integer := 1); -- must be non-zero
procedure cgemv
(Trans : access constant Character;
M : Natural := 0;
N : Natural := 0;
Alpha : Complex := (1.0, 1.0);
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
procedure zgemv
(Trans : access constant Character;
M : Natural := 0;
N : Natural := 0;
Alpha : Double_Complex := (1.0, 1.0);
A : Double_Complex_Matrix;
Ld_A : Positive;
X : Double_Complex_Vector;
Inc_X : Integer := 1; -- must be non-zero
Beta : Double_Complex := (0.0, 0.0);
Y : in out Double_Complex_Vector;
Inc_Y : Integer := 1); -- must be non-zero
-- BLAS Level 3
procedure sgemm
(Trans_A : access constant Character;
Trans_B : access constant Character;
M : Positive;
N : Positive;
K : Positive;
Alpha : Real := 1.0;
A : Real_Matrix;
Ld_A : Integer;
B : Real_Matrix;
Ld_B : Integer;
Beta : Real := 0.0;
C : in out Real_Matrix;
Ld_C : Integer);
procedure dgemm
(Trans_A : access constant Character;
Trans_B : access constant Character;
M : Positive;
N : Positive;
K : Positive;
Alpha : Double_Precision := 1.0;
A : Double_Precision_Matrix;
Ld_A : Integer;
B : Double_Precision_Matrix;
Ld_B : Integer;
Beta : Double_Precision := 0.0;
C : in out Double_Precision_Matrix;
Ld_C : Integer);
procedure cgemm
(Trans_A : access constant Character;
Trans_B : access constant Character;
M : Positive;
N : Positive;
K : Positive;
Alpha : Complex := (1.0, 1.0);
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);
procedure zgemm
(Trans_A : access constant Character;
Trans_B : access constant Character;
M : Positive;
N : Positive;
K : Positive;
Alpha : Double_Complex := (1.0, 1.0);
A : Double_Complex_Matrix;
Ld_A : Integer;
B : Double_Complex_Matrix;
Ld_B : Integer;
Beta : Double_Complex := (0.0, 0.0);
C : in out Double_Complex_Matrix;
Ld_C : Integer);
private
pragma Import (Fortran, cdotu, "cdotu_");
pragma Import (Fortran, cgemm, "cgemm_");
pragma Import (Fortran, cgemv, "cgemv_");
pragma Import (Fortran, ddot, "ddot_");
pragma Import (Fortran, dgemm, "dgemm_");
pragma Import (Fortran, dgemv, "dgemv_");
pragma Import (Fortran, dnrm2, "dnrm2_");
pragma Import (Fortran, dznrm2, "dznrm2_");
pragma Import (Fortran, scnrm2, "scnrm2_");
pragma Import (Fortran, sdot, "sdot_");
pragma Import (Fortran, sgemm, "sgemm_");
pragma Import (Fortran, sgemv, "sgemv_");
pragma Import (Fortran, snrm2, "snrm2_");
pragma Import (Fortran, zdotu, "zdotu_");
pragma Import (Fortran, zgemm, "zgemm_");
pragma Import (Fortran, zgemv, "zgemv_");
end Interfaces.Fortran.BLAS;
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