/*********************************************************************/

/* Copyright 2009, 2010 The University of Texas at Austin.           */

/* All rights reserved.                                              */

/*                                                                   */

/* Redistribution and use in source and binary forms, with or        */

/* without modification, are permitted provided that the following   */

/* conditions are met:                                               */

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/*   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.                              */

/*                                                                   */

/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */

/*    AUSTIN  ``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 UNIVERSITY  OF TEXAS AT    */

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/* The views and conclusions contained in the software and           */

/* documentation are those of the authors and should not be          */

/* interpreted as representing official policies, either expressed   */

/* or implied, of The University of Texas at Austin.                 */

/*********************************************************************/

#include <stdio.h></stdio.h>

#include "common.h"

#ifdef FUNCTION_PROFILE

#include "functable.h"

#endif

static int (*laswp[])(BLASLONG, BLASLONG, BLASLONG, FLOAT, FLOAT *, BLASLONG, FLOAT *, BLASLONG, blasint *, BLASLONG) = {

#ifdef XDOUBLE

  qlaswp_plus, qlaswp_minus,

#elif defined(DOUBLE)

  dlaswp_plus, dlaswp_minus,

#else

  slaswp_plus, slaswp_minus,

#endif

};

int NAME(blasint *N, FLOAT *a, blasint *LDA, blasint *K1, blasint *K2, blasint *ipiv, blasint *INCX){

  blasint n    = *N;

  blasint lda  = *LDA;

  blasint k1   = *K1;

  blasint k2   = *K2;

  blasint incx = *INCX;

  int flag;

#ifdef SMP

  int mode, nthreads;

  FLOAT dummyalpha[2] = {ZERO, ZERO};

#endif

  PRINT_DEBUG_NAME;

  if (incx == 0 || n <= 0) return 0;

  IDEBUG_START;

  FUNCTION_PROFILE_START();

  flag = (incx < 0);

#ifdef SMP

  nthreads = num_cpu_avail(1);

  if (nthreads == 1) {

#endif

  (laswp[flag])(n, k1, k2, ZERO, a, lda, NULL, 0, ipiv, incx);

#ifdef SMP

  } else {

#ifdef XDOUBLE

  mode  =  BLAS_XDOUBLE | BLAS_REAL;

#elif defined(DOUBLE)

  mode  =  BLAS_DOUBLE  | BLAS_REAL;

#else

  mode  =  BLAS_SINGLE  | BLAS_REAL;

#endif  

  blas_level1_thread(mode, n, k1, k2, dummyalpha, 

		     a, lda, NULL, 0, ipiv, incx, 

		     laswp[flag], nthreads);

  }

#endif

  FUNCTION_PROFILE_END(COMPSIZE, n * (k2 - k1), 0);

  IDEBUG_END;

  return 0;

}