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/* ---------------------------------------------------------------------
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* -- Automatically Tuned Linear Algebra Software (ATLAS)
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* (C) Copyright 2000 All Rights Reserved
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* -- ATLAS routine -- Version 3.2 -- December 15, 2000
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* -- Suggestions, comments, bugs reports should be sent to the follo-
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* wing e-mail address: atlas@cs.utk.edu
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* Author : Antoine P. Petitet
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* University of Tennessee - Innovative Computing Laboratory
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* Knoxville TN, 37996-1301, USA.
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* ---------------------------------------------------------------------
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* -- Copyright notice and Licensing terms:
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions, and the following disclaimer in
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* the documentation and/or other materials provided with the distri-
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* 3. The name of the University, the ATLAS group, or the names of its
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* contributors may not be used to endorse or promote products deri-
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* ved from this software without specific written permission.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
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* CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEO-
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* RY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (IN-
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* CLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ---------------------------------------------------------------------
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#include "atlas_f77wrap.h"
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void Mjoin( PATLF77WRAP, spr2 )
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* ATL_F77wrap_spr2 performs the symmetric rank 2 operation
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* A := alpha * x * y' + alpha * y * x' + A,
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* where alpha is a scalar, x and y are n-element vectors and A is an n
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* by n symmetric matrix, supplied in packed form.
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* This routine is an internal wrapper function written in C called by
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* the corresponding Fortran 77 user callable subroutine. It calls the
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* appropriate ATLAS routine performing the actual computation.
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* This wrapper layer resolves the following portability issues:
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* - the routines' name sheme translation imposed by the Fortran / C
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* compilers of your target computer,
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* - the translation of Fortran characters into the ATLAS correspon-
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* ding C enumerated type (in cooperation with the Fortan user cal-
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* - the translation of Fortran integers into the proper C correspon-
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* and the following ease-of-programming issue:
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* - a pointer to the the first entry of vector operands (when appli-
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* cable) is passed to the ATLAS computational routine even if the
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* corresponding input increment value is negative. This allows for
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* a more natural expression in C of the computation performed by
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* these ATLAS functions.
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* ---------------------------------------------------------------------
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* .. Executable Statements ..
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Mjoin( PATL, spr2 )( *IUPLO, *N, SVVAL ALPHA, W1N( N, X, INCX ), *INCX,
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W1N( N, Y, INCY ), *INCY, A );
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* End of Mjoin( PATLF77WRAP, spr2 )