12880a1b7f
* include/hbapiitm.h
* src/rtl/hbdef.c
* src/vm/itemapi.c
* src/harbour.def
+ added new public C function
HB_BOOL hb_itemTypeCmp( PHB_ITEM pItem1, PHB_ITEM pItem2 );
which uses low level item type comparison code taken from hb_default()
and hb_defaultValue() PRG functions
* include/harbour.hbx
* src/harbour.def
* src/vm/hashfunc.c
+ added new PRG function
hb_HSetDef( <hVal>, <xKey> [, <xDefVal> ] )
it checks if <xKey> exists and if not then adds it to hash array
and optionally sets key value to <xDefVal> otherwise (the key
exists in hash array) and <xDefVal> is given then it checks if
the type of key's value is compatible with <xDefVal> and if not
then replaces key's value with <xDefVal>.
In other words it's combination of hb_HGetDef() and hb_default()
and works like this PRG code:
FUNCTION hb_HSetDef( hVal, xKey, xDefVal )
IF xKey $ hVal
hb_default( @hVal[ xKey ], xDefVal )
ELSE
hVal[ xKey ] := xDefVal
ENDIF
RETURN hVal
but much faster.
* src/rtl/dirscan.prg
* remove READONLY attribute from deleted directories.
Be careful. Now this function allows to recursively remove
all directories even if they have READONLY attribute.
76 lines
2.8 KiB
C
76 lines
2.8 KiB
C
/*
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* hb_default() and __defaultNIL() functions
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*
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* Copyright 2012 Viktor Szakats (vszakats.net/harbour)
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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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HB_FUNC( HB_DEFAULT )
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{
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PHB_ITEM pDefault = hb_param( 2, HB_IT_ANY );
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if( pDefault && ! hb_itemTypeCmp( hb_param( 1, HB_IT_ANY ), pDefault ) )
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hb_itemParamStore( 1, pDefault );
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}
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HB_FUNC( HB_DEFAULTVALUE )
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{
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PHB_ITEM pParam = hb_param( 1, HB_IT_ANY );
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PHB_ITEM pDefault = hb_param( 2, HB_IT_ANY );
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if( pDefault && ! hb_itemTypeCmp( pParam, pDefault ) )
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pParam = pDefault;
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hb_itemReturn( pParam );
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}
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/* For compatibility with legacy DEFAULT ... TO ... command.
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Not recommended for new code. */
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HB_FUNC( __DEFAULTNIL )
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{
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if( hb_pcount() >= 2 && HB_IS_NIL( hb_param( 1, HB_IT_ANY ) ) )
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hb_itemParamStore( 1, hb_param( 2, HB_IT_ANY ) );
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}
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