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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) 2006-2009, 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. --
--- --
-------------------------------------------------------------------------------
-
--- 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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