83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/***************************************************************************
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Copyright (c) 2013, The OpenBLAS Project
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All rights reserved.
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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 are
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met:
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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
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distribution.
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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "common.h"
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/*****************************************************
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* 2015-09-07 grisuthedragon
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*
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******************************************************/
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int CNAME(BLASLONG rows, BLASLONG cols, FLOAT alpha_r, FLOAT alpha_i, FLOAT *a, BLASLONG lda)
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{
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BLASLONG i,j,ia,ib;
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FLOAT *aptr,*bptr;
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FLOAT t0, t1;
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if ( rows <= 0 ) return(0);
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if ( cols <= 0 ) return(0);
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aptr = a;
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lda *= 2;
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ib = 0;
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for ( i=0; i<cols ; i++ )
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{
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bptr = &a[ib+i*lda];
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ia = 2*i;
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/* Diagonal Element */
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t0 = bptr[0];
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t1 = bptr[1];
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bptr[0] = alpha_r * t0 - alpha_i * t1;
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bptr[1] = alpha_r * t1 + alpha_i * t0;
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bptr +=lda;
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ia += 2;
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for(j=i+1; j<rows; j++)
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{
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t0 = bptr[0];
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t1 = bptr[1];
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bptr[0] = alpha_r * aptr[ia] - alpha_i * aptr[ia+1];
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bptr[1] = alpha_r * aptr[ia+1] + alpha_i * aptr[ia];
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aptr[ia] = alpha_r * t0 - alpha_i * t1;
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aptr[ia+1] = alpha_r * t1 + alpha_i * t0;
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ia += 2;
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bptr += lda;
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}
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aptr += lda;
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ib += 2;
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}
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return(0);
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}
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