262 lines
9.4 KiB
Ada
262 lines
9.4 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- I N T E R F A C E S . F O R T R A N . B L A S --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2006-2009, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This package provides a thin binding to the standard Fortran BLAS library.
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-- Documentation and a reference BLAS implementation is available from
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-- ftp://ftp.netlib.org. The main purpose of this package is to facilitate
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-- implementation of the Ada 2005 Ada.Numerics.Generic_Real_Arrays and
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-- Ada.Numerics.Generic_Complex_Arrays packages. Bindings to other BLAS
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-- routines may be added over time.
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-- As actual linker arguments to link with the BLAS implementation differs
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-- according to platform and chosen BLAS implementation, the linker arguments
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-- are given in the body of this package. The body may need to be modified in
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-- order to link with different BLAS implementations tuned to the specific
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-- target.
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package Interfaces.Fortran.BLAS is
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pragma Pure;
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pragma Elaborate_Body;
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No_Trans : aliased constant Character := 'N';
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Trans : aliased constant Character := 'T';
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Conj_Trans : aliased constant Character := 'C';
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-- Vector types
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type Real_Vector is array (Integer range <>) of Real;
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type Complex_Vector is array (Integer range <>) of Complex;
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type Double_Precision_Vector is array (Integer range <>)
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of Double_Precision;
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type Double_Complex_Vector is array (Integer range <>) of Double_Complex;
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-- Matrix types
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type Real_Matrix is array (Integer range <>, Integer range <>)
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of Real;
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type Double_Precision_Matrix is array (Integer range <>, Integer range <>)
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of Double_Precision;
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type Complex_Matrix is array (Integer range <>, Integer range <>)
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of Complex;
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type Double_Complex_Matrix is array (Integer range <>, Integer range <>)
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of Double_Complex;
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-- BLAS Level 1
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function sdot
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(N : Positive;
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X : Real_Vector;
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Inc_X : Integer := 1;
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Y : Real_Vector;
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Inc_Y : Integer := 1) return Real;
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function ddot
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(N : Positive;
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X : Double_Precision_Vector;
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Inc_X : Integer := 1;
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Y : Double_Precision_Vector;
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Inc_Y : Integer := 1) return Double_Precision;
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function cdotu
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(N : Positive;
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X : Complex_Vector;
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Inc_X : Integer := 1;
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Y : Complex_Vector;
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Inc_Y : Integer := 1) return Complex;
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function zdotu
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(N : Positive;
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X : Double_Complex_Vector;
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Inc_X : Integer := 1;
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Y : Double_Complex_Vector;
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Inc_Y : Integer := 1) return Double_Complex;
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function snrm2
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(N : Natural;
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X : Real_Vector;
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Inc_X : Integer := 1) return Real;
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function dnrm2
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(N : Natural;
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X : Double_Precision_Vector;
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Inc_X : Integer := 1) return Double_Precision;
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function scnrm2
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(N : Natural;
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X : Complex_Vector;
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Inc_X : Integer := 1) return Real;
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function dznrm2
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(N : Natural;
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X : Double_Complex_Vector;
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Inc_X : Integer := 1) return Double_Precision;
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-- BLAS Level 2
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procedure sgemv
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(Trans : access constant Character;
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M : Natural := 0;
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N : Natural := 0;
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Alpha : Real := 1.0;
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A : Real_Matrix;
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Ld_A : Positive;
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X : Real_Vector;
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Inc_X : Integer := 1; -- must be non-zero
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Beta : Real := 0.0;
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Y : in out Real_Vector;
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Inc_Y : Integer := 1); -- must be non-zero
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procedure dgemv
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(Trans : access constant Character;
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M : Natural := 0;
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N : Natural := 0;
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Alpha : Double_Precision := 1.0;
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A : Double_Precision_Matrix;
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Ld_A : Positive;
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X : Double_Precision_Vector;
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Inc_X : Integer := 1; -- must be non-zero
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Beta : Double_Precision := 0.0;
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Y : in out Double_Precision_Vector;
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Inc_Y : Integer := 1); -- must be non-zero
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procedure cgemv
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(Trans : access constant Character;
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M : Natural := 0;
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N : Natural := 0;
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Alpha : Complex := (1.0, 1.0);
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A : Complex_Matrix;
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Ld_A : Positive;
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X : Complex_Vector;
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Inc_X : Integer := 1; -- must be non-zero
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Beta : Complex := (0.0, 0.0);
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Y : in out Complex_Vector;
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Inc_Y : Integer := 1); -- must be non-zero
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procedure zgemv
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(Trans : access constant Character;
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M : Natural := 0;
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N : Natural := 0;
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Alpha : Double_Complex := (1.0, 1.0);
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A : Double_Complex_Matrix;
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Ld_A : Positive;
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X : Double_Complex_Vector;
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Inc_X : Integer := 1; -- must be non-zero
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Beta : Double_Complex := (0.0, 0.0);
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Y : in out Double_Complex_Vector;
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Inc_Y : Integer := 1); -- must be non-zero
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-- BLAS Level 3
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procedure sgemm
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(Trans_A : access constant Character;
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Trans_B : access constant Character;
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M : Positive;
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N : Positive;
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K : Positive;
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Alpha : Real := 1.0;
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A : Real_Matrix;
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Ld_A : Integer;
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B : Real_Matrix;
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Ld_B : Integer;
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Beta : Real := 0.0;
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C : in out Real_Matrix;
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Ld_C : Integer);
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procedure dgemm
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(Trans_A : access constant Character;
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Trans_B : access constant Character;
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M : Positive;
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N : Positive;
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K : Positive;
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Alpha : Double_Precision := 1.0;
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A : Double_Precision_Matrix;
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Ld_A : Integer;
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B : Double_Precision_Matrix;
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Ld_B : Integer;
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Beta : Double_Precision := 0.0;
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C : in out Double_Precision_Matrix;
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Ld_C : Integer);
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procedure cgemm
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(Trans_A : access constant Character;
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Trans_B : access constant Character;
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M : Positive;
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N : Positive;
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K : Positive;
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Alpha : Complex := (1.0, 1.0);
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A : Complex_Matrix;
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Ld_A : Integer;
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B : Complex_Matrix;
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Ld_B : Integer;
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Beta : Complex := (0.0, 0.0);
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C : in out Complex_Matrix;
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Ld_C : Integer);
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procedure zgemm
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(Trans_A : access constant Character;
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Trans_B : access constant Character;
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M : Positive;
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N : Positive;
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K : Positive;
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Alpha : Double_Complex := (1.0, 1.0);
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A : Double_Complex_Matrix;
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Ld_A : Integer;
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B : Double_Complex_Matrix;
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Ld_B : Integer;
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Beta : Double_Complex := (0.0, 0.0);
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C : in out Double_Complex_Matrix;
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Ld_C : Integer);
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private
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pragma Import (Fortran, cdotu, "cdotu_");
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pragma Import (Fortran, cgemm, "cgemm_");
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pragma Import (Fortran, cgemv, "cgemv_");
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pragma Import (Fortran, ddot, "ddot_");
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pragma Import (Fortran, dgemm, "dgemm_");
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pragma Import (Fortran, dgemv, "dgemv_");
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pragma Import (Fortran, dnrm2, "dnrm2_");
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pragma Import (Fortran, dznrm2, "dznrm2_");
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pragma Import (Fortran, scnrm2, "scnrm2_");
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pragma Import (Fortran, sdot, "sdot_");
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pragma Import (Fortran, sgemm, "sgemm_");
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pragma Import (Fortran, sgemv, "sgemv_");
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pragma Import (Fortran, snrm2, "snrm2_");
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pragma Import (Fortran, zdotu, "zdotu_");
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pragma Import (Fortran, zgemm, "zgemm_");
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pragma Import (Fortran, zgemv, "zgemv_");
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end Interfaces.Fortran.BLAS;
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