OpenBLAS/driver/level3/zherk_beta.c

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

#include <stdio.h>
#include <ctype.h>
#include "common.h"

int CNAME(BLASLONG dummy1, BLASLONG n,  BLASLONG dummy2, FLOAT alpha_r, FLOAT alpha_i,
	  FLOAT *dummy3, BLASLONG dummy4, FLOAT *dummy5, BLASLONG dummy6,
	  FLOAT *c, BLASLONG ldc,
	  FLOAT *dummy7, FLOAT *dummy8, BLASLONG from, BLASLONG to){

  BLASLONG i;

#ifndef LOWER
  for (i = from; i < to; i++){
    SCAL_K(i * 2, 0, 0, alpha_r, c + i * ldc * 2, 1, NULL, 0, NULL, 0);
    if (alpha_r == ZERO ){
      c[i * 2 + 0 + i * ldc * 2] = ZERO;
      c[i * 2 + 1 + i * ldc * 2] = ZERO;
    } else {
      c[i * 2 + 0 + i * ldc * 2] *= alpha_r;
      c[i * 2 + 1 + i * ldc * 2] = ZERO;
    }
  }
#else
  for (i = from; i < to; i++){
    if (alpha_r == ZERO) {
      c[i * 2 + 0 + i * ldc * 2] = ZERO;
      c[i * 2 + 1 + i * ldc * 2] = ZERO;
    } else {
      c[i * 2 + 0 + i * ldc * 2] *= alpha_r;
      c[i * 2 + 1 + i * ldc * 2] = ZERO;
    }
    SCAL_K((n - i - 1) * 2, 0, 0, alpha_r, c + 2 + i * (ldc + 1) * 2, 1, NULL, 0, NULL, 0);
  }
#endif

  return 0;
}