/*
   xls2xml: Converts from Microsoft Excel files to XML.
   Copyright 1999  Roberto Arturo Tena Sanchez

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published  by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 */
/*
   Roberto Arturo Tena Sanchez <arturo@directmail.org>
 */

#include <stdlib.h>
#include <stdio.h>
#include <ieeestr.h>

char *
IEEEnumber2str (U8 * n, int double_precision)
{
  char * rnumber;
  char snumber [500]; /* MAGIC NUMBER */

  if (double_precision)
  {
    sprintf (snumber, "%f", _xls2xml_sreadF64 (n));
    rnumber = malloc (strlen (snumber) + 1);
    test (rnumber != NULL, NULL);
    strcpy (rnumber, snumber);
    return rnumber;
  }
  else
  {
    fprintf (stderr, "IEEEnumber2str single precision not implemented yet\n");
    return NULL;
  }
}

char *
RKnumber2str (U8 * n)
{
  F64 answer;
  U32 number;
  U32 temp[2];
  char snumber [500]; /* MAGIC NUMBER */
  char * rnumber;

  number = _xls2xml_sreadU32 (n);
  switch (number & 0x03)
  {
  case 0: /* IEEE */
    temp[0] = 0;
    temp[1] = number & 0xfffffffc;
    answer = *( (F64*)temp );
    verbose ("RK IEEE");
    break;
  case 1: /* IEEEx100 */
    temp[0] = 0;
    temp[1] = number & 0xfffffffc;
    answer = *( (F64*)temp ) / 100.0;
    verbose ("RK IEEEx100");
    break;
  case 2: /* integer */
    answer = (F64)(number >> 2);
    verbose ("RK integer");
    break;
  case 3: /* integerx100 */
    answer = (F64)(number >> 2) / 100.0;
    verbose ("RK integerx100");
    break;
  }
  
  sprintf (snumber, "%f", answer);
  rnumber = malloc (strlen (snumber) + 1);
  test (rnumber != NULL, NULL);
  strcpy (rnumber, snumber);
  return rnumber;
}