text: /*
   *             Automatically Tuned Linear Algebra Software v3.9.25
   *                    (C) Copyright 1999 R. Clint Whaley
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *   1. Redistributions of source code must retain the above copyright
   *      notice, this list of conditions and the following disclaimer.
   *   2. Redistributions in binary form must reproduce the above copyright
   *      notice, this list of conditions, and the following disclaimer in the
   *      documentation and/or other materials provided with the distribution.
   *   3. The name of the ATLAS group or the names of its contributers may
   *      not be used to endorse or promote products derived from this
   *      software without specific written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ATLAS GROUP OR ITS CONTRIBUTORS
   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  #define DREAL
  #include "atlas_misc.h"
  #ifdef ATL_USEPTHREADS
     #include "atlas_ptalias1.h"
  #endif
  #include "atlas_level1.h"
  #include "cblas.h"
  
  void cblas_drot(const int N, double *X, const int incX,
                  double *Y, const int incY, const double c, const double s)
  {
     double *x = X, *y = Y;
     int incx = incX, incy = incY;
  
     if (N > 0)
     {
        if (incX < 0)
        {
           if (incY < 0) { incx = -incx; incy = -incy; }
           else x += -incX * ((N-1));
        }
        else if (incY < 0)
        {
           incy = -incy;
           incx = -incx;
           x += (N-1)*(incX);
        }
        ATL_drot(N, x, incx, y, incy, c, s);
     }
  }
  