9f16c2bf8e
* *
* update copyright headers with new FSF postal address
* COPYING.txt -> LICENSE.txt (rest of repo to be synced)
102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
/*
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* Abs() function
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*
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* Copyright 1999 Matthew Hamilton <mhamilton@bunge.com.au>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file LICENSE.txt. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#include "hbapi.h"
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#include "hbapiitm.h"
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#include "hbapierr.h"
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HB_FUNC( ABS )
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{
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PHB_ITEM pNumber = hb_param( 1, HB_IT_NUMERIC );
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if( pNumber )
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{
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int iWidth;
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int iDec;
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hb_itemGetNLen( pNumber, &iWidth, &iDec );
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if( HB_IS_INTEGER( pNumber ) )
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{
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int iNumber = hb_itemGetNI( pNumber );
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if( iNumber >= 0 )
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hb_retnilen( iNumber, iWidth );
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#if -HB_VMINT_MAX > HB_VMINT_MIN
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else if( iNumber < -INT_MAX )
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#if HB_VMLONG_MAX > HB_VMINT_MAX
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hb_retnint( -( HB_MAXINT ) iNumber );
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#else
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hb_retndlen( -( double ) iNumber, 0, iDec );
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#endif
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#endif
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else
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hb_retni( -iNumber );
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}
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else if( HB_IS_LONG( pNumber ) )
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{
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HB_MAXINT lNumber = hb_itemGetNInt( pNumber );
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if( lNumber >= 0 )
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hb_retnintlen( lNumber, iWidth );
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#if -HB_VMLONG_MAX > HB_VMLONG_MIN
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else if( lNumber < -HB_VMLONG_MAX )
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hb_retndlen( -( double ) lNumber, 0, iDec );
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#endif
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else
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hb_retnint( -lNumber );
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}
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else
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{
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double dNumber = hb_itemGetND( pNumber );
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hb_retndlen( dNumber >= 0.0 ? dNumber : -dNumber, 0, iDec );
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}
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}
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else
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hb_errRT_BASE_SubstR( EG_ARG, 1089, NULL, HB_ERR_FUNCNAME, HB_ERR_ARGS_BASEPARAMS );
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}
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