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2010-11-08 12:20 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)

Browse Source 
* harbour/contrib/xhb/xhb.hbp
  * harbour/contrib/xhb/xhb.hbx
  + harbour/contrib/xhb/xhbarrex.c
    + added ASIZEALLOC(), ALENALLOC() xHarbour functions
      In Harbour they are in practice useless because we are using
      dynamic array preallocation not static one as in xHarbour.

  * harbour/doc/xhb-diff.txt
    + added information about HB_ARRAYTOPARAMS() function
This commit is contained in:
Przemyslaw Czerpak
2010-11-08 11:21:00 +00:00
parent 794fc365d1
commit a73bbdb1e3
5 changed files with 130 additions and 5 deletions
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11
harbour/ChangeLog
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@@ -16,6 +16,17 @@
The license applies to all entries newer than 2009-04-28.
*/
2010-11-08 12:20 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/contrib/xhb/xhb.hbp
* harbour/contrib/xhb/xhb.hbx
+ harbour/contrib/xhb/xhbarrex.c
+ added ASIZEALLOC(), ALENALLOC() xHarbour functions
In Harbour they are in practice useless because we are using
dynamic array preallocation not static one as in xHarbour.
* harbour/doc/xhb-diff.txt
+ added information about HB_ARRAYTOPARAMS() function
2010-11-08 11:17 UTC+0100 Viktor Szakats (harbour.01 syenar.hu)
* contrib/hbqt/hbqt_hbmk2_plugin.hbs
! Do not apply HB_QTPOSTFIX to rcc tool.

1
harbour/contrib/xhb/xhb.hbp
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@@ -36,6 +36,7 @@ hbsyslog.c
hbxml.c
txtline.c
xhbarr.c
xhbarrex.c
xhbat.c
xhbcopyf.c
xhbdate.c

2
harbour/contrib/xhb/xhb.hbx
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@@ -26,9 +26,11 @@
#command DYNAMIC <fncs,...> => EXTERNAL <fncs>
#endif
DYNAMIC ALENALLOC
DYNAMIC AMERGE
DYNAMIC ANY2STR
DYNAMIC AREMOVE
DYNAMIC ASIZEALLOC
DYNAMIC ASPLICE
DYNAMIC ATI
DYNAMIC ATSKIPSTRINGS

82
harbour/contrib/xhb/xhbarrex.c Normal file
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@@ -0,0 +1,82 @@
/*
* $Id$
*/
/*
* Harbour Project source code:
* xHarbour compatible ASIZEALLOC(), ALENALLOC() function
*
* Copyright 2010 Przemyslaw Czerpak <druzus / at / priv.onet.pl>
* www - http://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, xHarbour license gives permission for
* additional uses of the text contained in its release of xHarbour.
*
* The exception is that, if you link the xHarbour 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 xHarbour 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 with this xHarbour
* explicit exception. If you add/copy code from other sources,
* as the General Public License permits, the above 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 xHarbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "hbapi.h"
#include "hbapiitm.h"
/* ASIZEALLOC( <array>, <num> ) -> <array> - Set the pre-alloc step. */
HB_FUNC( ASIZEALLOC )
{
PHB_ITEM pArray = hb_param( 1, HB_IT_ARRAY );
PHB_ITEM pPreAlloc = hb_param( 2, HB_IT_NUMERIC );
if( pArray && pPreAlloc )
{
/* do nothing Harbour uses dynamically updated preallocation size */
hb_itemReturn( pArray );
}
}
/* ALENALLOC( <array> ) -> <num> - Get the pre-alloc step. */
HB_FUNC( ALENALLOC )
{
PHB_ITEM pArray = hb_param( 1, HB_IT_ARRAY );
if( pArray )
{
/* Harbour uses dynamically updated preallocation size
* let's approximate some value
*/
HB_SIZE nLen = hb_arrayLen( pArray );
nLen = ( nLen >> 1 ) + 1;
hb_retns( nLen );
}
}

39
harbour/doc/xhb-diff.txt
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@@ -314,7 +314,7 @@ In xHarbour the behavior of references stored in array is reverted in
comparison to Clipper or Harbour.
In Clipper and Harbour VM executing code like:
aVal[ 1 ] := 100
clears unconditionally 1-st item in aVal array and assign to it value 100.
clears unconditionally 1-st item in aVal array and assigns to it value 100.
xHarbour checks if aVal[ 1 ] is an reference and in such case it resolves
the reference and then assign 100 to the destination item.
On access Clipper and Harbour VM executing code like:
@@ -337,12 +337,12 @@ It can be seen in code like:
x3 := aParams[ 3 ]
x1 := lower( x1 ) + "1"
x2 := lower( x1 ) + "2"
x3 := lower( x1 ) + "3"
x2 := lower( x2 ) + "2"
x3 := lower( x3 ) + "3"
Harbour and Clipper shows:
A B C
a1 B a13
a1 B c3
but xHarbour:
A B C
A B C
@@ -391,7 +391,7 @@ Compiled by Harbour above code shows:
abc klm xyz 123 456 789
abc [1] xyz 123 [2] 789
In xHarbour only passing array items by reference work but do not work
In xHarbour only passing array items by reference works but does not work
passing hash items by reference though it does not generate either
compile time or run time errors so the above code can be compiled and
executed but it shows:
@@ -598,6 +598,35 @@ Harbour where item references stored in arrays work like in Clipper.
### HB_ARRAYTOPARAMS() FUNCTION ###
=========================================
Harbour has special function which allows to convert array into
list of items which can be used as function parameters, array
values or array indexes in the same way as '...' operator:
hb_arrayToParams( <aValue> ) -> <aValue>[ 1 ] [, <aValue>[ N ] ]
i.e.:
proc main( ... )
local aParams := hb_aParams(), n
/* remove parameters starting with "--" */
n := 1
while n < len( aParams )
if left( aParams[ n ], 2 ) == "--"
hb_adel( aParams, n, .t. )
else
++n
endif
enddo
? "Public parameters:", hb_arrayToParams( aParams )
return
Note for Clipper users: 'hb_adel( aParams, n, .t. )' in above example
works like 'adel( aParams, n ); asize( aParams, len( aParams ) - 1 )'.
This functionality is unique to Harbour and xHarbour does not supports
hb_arrayToParams() or similar function.
### MACRO MESSAGES ###
============================
Both compilers Harbour and xHarbour supports macros as messages.