138 lines
4.0 KiB
C
138 lines
4.0 KiB
C
/*
|
|
* $Id$
|
|
*/
|
|
|
|
/*
|
|
* Harbour Project source code:
|
|
* ROUND(), INT() functions
|
|
*
|
|
* Copyright 1999 David G. Holm <dholm@jsd-llc.com>
|
|
* www - http://www.harbour-project.org
|
|
*
|
|
* 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, 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 software; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
|
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
|
|
*
|
|
* As a special exception, the Harbour Project gives permission for
|
|
* additional uses of the text contained in its release of Harbour.
|
|
*
|
|
* The exception is that, if you link the Harbour libraries with other
|
|
* files to produce an executable, this does not by itself cause the
|
|
* resulting executable to be covered by the GNU General Public License.
|
|
* Your use of that executable is in no way restricted on account of
|
|
* linking the Harbour library code into it.
|
|
*
|
|
* This exception does not however invalidate any other reasons why
|
|
* the executable file might be covered by the GNU General Public License.
|
|
*
|
|
* This exception applies only to the code released by the Harbour
|
|
* Project under the name Harbour. If you copy code from other
|
|
* Harbour Project or Free Software Foundation releases into a copy of
|
|
* Harbour, as the General Public License permits, the exception does
|
|
* not apply to the code that you add in this way. To avoid misleading
|
|
* anyone as to the status of such modified files, you must delete
|
|
* this exception notice from them.
|
|
*
|
|
* If you write modifications of your own for Harbour, it is your choice
|
|
* whether to permit this exception to apply to your modifications.
|
|
* If you do not wish that, delete this exception notice.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* The following parts are Copyright of the individual authors.
|
|
* www - http://www.harbour-project.org
|
|
*
|
|
* Copyright 1999 Matthew Hamilton <mhamilton@bunge.com.au>
|
|
* INT()
|
|
*
|
|
* See doc/license.txt for licensing terms.
|
|
*
|
|
*/
|
|
|
|
#include <math.h>
|
|
|
|
#include "hbapi.h"
|
|
#include "hbapiitm.h"
|
|
#include "hbapierr.h"
|
|
|
|
HB_FUNC( INT )
|
|
{
|
|
PHB_ITEM pNumber = hb_param( 1, HB_IT_NUMERIC );
|
|
|
|
if( pNumber )
|
|
{
|
|
double dNumber = hb_itemGetND( pNumber );
|
|
int iWidth;
|
|
|
|
hb_itemGetNLen( pNumber, &iWidth, NULL );
|
|
|
|
hb_retndlen( dNumber >= 0 ? floor( dNumber ) : ceil( dNumber ), iWidth, 0 );
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 1090, NULL, "INT", 1, hb_paramError( 1 ) );
|
|
}
|
|
|
|
double hb_numRound( double dResult, int iDec )
|
|
{
|
|
HB_TRACE(HB_TR_DEBUG, ("hb_numRound(%lf, %d)", dResult, iDec));
|
|
|
|
if( dResult != 0.0 )
|
|
{
|
|
if( iDec == 0 )
|
|
{
|
|
if( dResult < 0.0 )
|
|
dResult = ceil( dResult - 0.5 );
|
|
else
|
|
dResult = floor( dResult + 0.5 );
|
|
}
|
|
else if( iDec < 0 )
|
|
{
|
|
double dAdjust = pow( 10, -iDec );
|
|
|
|
if( dResult < 0.0 )
|
|
dResult = ceil( ( dResult / dAdjust ) - 0.5 );
|
|
else
|
|
dResult = floor( ( dResult / dAdjust ) + 0.5 );
|
|
|
|
dResult *= dAdjust;
|
|
}
|
|
else
|
|
{
|
|
double dAdjust = pow( 10, iDec );
|
|
|
|
if( dResult < 0.0 )
|
|
dResult = ceil( ( dResult * dAdjust ) - 0.5 );
|
|
else
|
|
dResult = floor( ( dResult * dAdjust ) + 0.5 );
|
|
|
|
dResult /= dAdjust;
|
|
}
|
|
}
|
|
|
|
return dResult;
|
|
}
|
|
|
|
HB_FUNC( ROUND )
|
|
{
|
|
if( ISNUM( 1 ) && ISNUM( 2 ) )
|
|
{
|
|
int iDec = hb_parni( 2 );
|
|
|
|
hb_retndlen( hb_numRound( hb_parnd( 1 ), iDec ), 0, HB_MAX( iDec, 0 ) );
|
|
}
|
|
else
|
|
hb_errRT_BASE_SubstR( EG_ARG, 1094, NULL, "ROUND", 2, hb_paramError( 1 ), hb_paramError( 2 ) );
|
|
}
|