abe158c8d0
* include/hbapi.h
* source/rtl/empty.c
* source/rtl/idle.c
* source/vm/arrays.c
* source/vm/estack.c
* source/vm/extend.c
* source/vm/itemapi.c
* added missing code to use HB_IT_POINTER just like
other value's type
You can use:
hb_retptr( void * pointer )
hb_parptr( ) -> void *
hb_storptr( void * pointer, ...... )
to return/manage pointers from low level functions.
For example:
p = GET_SOME_POINTER()
? VALTYPE(p) //prints: 'P'
? p //prints: 0x12345678
* tests/onidle.prg
* fixed to use values of pointer type
* tests/tstmacro.prg
* added code to test TYPE() function
105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* EMPTY() function
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*
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* Copyright 1999 Antonio Linares <alinares@fivetech.com>
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* www - http://www.harbour-project.org
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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 software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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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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HB_FUNC( EMPTY )
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{
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PHB_ITEM pItem = hb_param( 1, HB_IT_ANY );
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switch( hb_itemType( pItem ) & ~HB_IT_BYREF )
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{
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case HB_IT_ARRAY:
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hb_retl( hb_arrayLen( pItem ) == 0 );
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break;
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case HB_IT_STRING:
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case HB_IT_MEMO:
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hb_retl( hb_strEmpty( hb_itemGetCPtr( pItem ), hb_itemGetCLen( pItem ) ) );
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break;
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case HB_IT_INTEGER:
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hb_retl( hb_itemGetNI( pItem ) == 0 );
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break;
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case HB_IT_LONG:
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hb_retl( hb_itemGetNL( pItem ) == 0 );
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break;
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case HB_IT_DOUBLE:
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hb_retl( hb_itemGetND( pItem ) == 0.0 );
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break;
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case HB_IT_DATE:
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hb_retl( hb_itemGetDL( pItem ) == 0 );
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break;
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case HB_IT_LOGICAL:
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hb_retl( ! hb_itemGetL( pItem ) );
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break;
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case HB_IT_BLOCK:
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hb_retl( FALSE );
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break;
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case HB_IT_POINTER:
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hb_retl( hb_itemGetPtr( pItem ) == NULL );
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break;
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default:
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hb_retl( TRUE );
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break;
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}
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}
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