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https://github.com/OpenMathLib/OpenBLAS
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83 lines
3.2 KiB
C
83 lines
3.2 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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/**************************************************************************************
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* 2013/09/14 Saar
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* BLASTEST float : OK
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* BLASTEST double : OK
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* CTEST : OK
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* TEST : OK
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*
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**************************************************************************************/
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#include "common.h"
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// The c/zscal_k function is called not only by cblas_c/zscal but also by other upper-level interfaces.
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// In certain cases, the expected return values for cblas_s/zscal differ from those of other upper-level interfaces.
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// To handle this, we use the dummy2 parameter to differentiate between them.
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int CNAME(BLASLONG n, BLASLONG dummy0, BLASLONG dummy1, FLOAT da_r,FLOAT da_i, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *dummy, BLASLONG dummy2)
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{
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BLASLONG i = 0;
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BLASLONG inc_x2;
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BLASLONG ip = 0;
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FLOAT temp;
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if ((n <= 0) || (inc_x <= 0))
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return(0);
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inc_x2 = 2 * inc_x;
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if (dummy2 == 0) {
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for (i = 0; i < n; i++)
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{
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if (da_r == 0.0 && da_i == 0.0)
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{
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x[ip] = 0.0;
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x[ip+1] = 0.0;
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}
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else
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{
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temp = da_r * x[ip] - da_i * x[ip+1];
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x[ip+1] = da_r * x[ip+1] + da_i * x[ip] ;
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x[ip] = temp;
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}
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ip += inc_x2;
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}
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return(0);
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}
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for (i = 0; i < n; i++)
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{
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temp = da_r * x[ip] - da_i * x[ip+1];
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x[ip+1] = da_r * x[ip+1] + da_i * x[ip] ;
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x[ip] = temp;
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ip += inc_x2;
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}
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return(0);
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}
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