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5342e731981e16117117ead668d56548eb6afa80
harbour-core/harbour/source/vm/itemapi.c
Przemyslaw Czerpak f181406951 2008-04-16 14:41 UTC+0200 Przemyslaw Czerpak (druzus/at/priv.onet.pl) 
* harbour/include/hbclass.ch
    ! removed:
         MESSAGE <msgName> IS <mthName>
      used as synonym of:
         MESSAGE <msgName> METHOD <mthName>
      If someone was using the removed version then please update the
      code to MESSAGE ... METHOD ...
      The removed command has special meaning in Class(y) and it allow
      to define alternate names for existing messages. I'll add support
      for them in the future.

  * harbour/contrib/hbct/ctwin.c
    * added disabled code which is a workaround for some possible
      bad side effect caused by online shadow showing by CTWIN.

  * harbour/source/rtl/errorint.c
    ! fixed displaying internal error message

  * harbour/source/common/hbver.c
    * added "Rev." prefix to shown revision number

  * harbour/include/hbexprop.h
  * harbour/include/hbexprb.c
  * harbour/source/common/expropt1.c
  * harbour/source/common/expropt2.c
    + added hb_compExprReduceNegate()
    ! fixed wrong negate optimizations for platforms where HB_LONG_MAX
      is smaller then -HB_LONG_MIN, f.e. all x86 based CPUs.
    ! fixed setting the size in optimized negative numbers
    ! fixed some math optimizations to not use casting to double value
      when it's not necessary - when double precision is smaller then HB_LONG
      (f.e. on x86 it's 53 bits and HB_LONG has 64bit) such casting can damage
      up to 11 less significant bits in big 64 bit numbers.

  * harbour/source/rtl/hbinet.c
    * replaced MAKEWORD() macro with HB_MKWORD() to pacify BCC58 warnings

  * harbour/include/hbdefs.h
    + added #include <limits.h>
      It should hide some warnings related to redefined integer size constants
      Viktor if it will not help for BCC58 warnings then you will have to add
         #include <stdint.h>
      few lines below but please remember that older BCC version does not
      have it so check for the exact compiler version.
    ! changed macros which setting default numeric item size for more strict
      Clipper compatible mode. I'm not a fun of some Clipper behavior in
      calculating number size and I left some notes about it in hbdefs.h
      Anyhow this and some other modifications below should cover the
      differences you've found recently. Some things are not addressed by
      me intentionally, f.e. _itemPutNL() in Clipper always set size to 10
      without checking the maximum size so it's too small for values less
      then -999999999. Harbour compiler makes more compile time optimizations
      then Clipper. The formatting rules used by compiler are a little bit
      different then by VM so this can be source of some other differences
      to Clipper. I can easy create some examples. Harbour supports 64bit
      signed integers and Clipper doesn't. This is yet another situation
      when we may have different results then Clipper. Most of them can
      be hidden if we add new PCODE(s) for integer number with explicit
      size but I do not think it's such important to increase PCODE list.
      In few cases it will be necessary to disable some optimizations at
      all and I do not like it. In the future when I will be adding some
      new optimizations I also add compiler switch to disable/enable
      optimizations which can have such side effects for people who need
      strict formatting.

  * harbour/include/hbvmpub.h
  * harbour/source/common/hbstr.c
  * harbour/source/vm/hvm.c
  * harbour/source/vm/itemapi.c
  * harbour/source/rtl/round.c
    * updated for more Clipper compatible number formating using new macros
2008-04-16 12:42:05 +00:00

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/*
* $Id$
*/
/*
* Harbour Project source code:
* The Item API
*
* Copyright 1999 Antonio Linares <alinares@fivetech.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 1999-2007 Viktor Szakats <viktor.szakats@syenar.hu>
* hb_itemPCount()
* hb_itemParamPtr()
* hb_itemReturnPtr()
* hb_itemPutDL()
* hb_itemPutNI()
* hb_itemGetDL()
* hb_itemGetNI()
* hb_itemGetCPtr()
* hb_itemGetCLen()
* hb_itemGetNLen()
* hb_itemPutCConst()
* hb_itemPutCLConst()
* hb_itemPutNLen()
* hb_itemPutNDLen()
* hb_itemPutNILen()
* hb_itemPutNLLen()
* hb_itemPutD()
* hb_itemSetCMemo()
*
* Copyright 1999 Eddie Runia <eddie@runia.com>
* hb_itemStrCmp()
*
* Copyright 1999 David G. Holm <dholm@jsd-llc.com>
* hb_itemStr(), hb_itemString(), and hb_itemValToStr().
*
* See doc/license.txt for licensing terms.
*
*/
#if !defined(__DJGPP__)
#include <math.h> /* For log() */
#endif
#if defined(_MSC_VER) || defined(__IBMCPP__) || (__BORLANDC__ > 1040) || defined(__WATCOMC__) /* Use this only above Borland C++ 3.1 */
#include <float.h> /* for _finite() and _isnan() */
#endif
#if defined(HB_OS_SUNOS)
# include <ieeefp.h>
#endif
#include "hbvmopt.h"
#include "hbapi.h"
#include "hbvm.h"
#include "hbstack.h"
#include "hbapicls.h"
#include "hbapiitm.h"
#include "hbapilng.h"
#include "hbapierr.h"
#include "hbdate.h"
#include "hbset.h"
#include "hbmath.h"
#include "hbapicdp.h"
HB_EXPORT PHB_ITEM hb_itemNew( PHB_ITEM pNull )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemNew(%p)", pNull));
return hb_gcGripGet( pNull );
}
HB_EXPORT PHB_ITEM hb_itemParam( USHORT uiParam )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemParam(%hu)", uiParam));
return hb_itemNew( hb_param( uiParam, HB_IT_ANY ) );
}
/* Internal Item API. Use this with care. */
HB_EXPORT PHB_ITEM hb_itemParamPtr( USHORT uiParam, long lMask )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemParamPtr(%hu, %ld)", uiParam, lMask));
return hb_param( ( int ) uiParam, lMask );
}
HB_EXPORT BOOL hb_itemParamStore( USHORT uiParam, PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemParamStore(%hu, %p)", uiParam, pItem));
if( hb_param( uiParam, HB_IT_BYREF ) )
{
hb_itemCopyToRef( hb_stackItemFromBase( uiParam ), pItem );
return TRUE;
}
return FALSE;
}
HB_EXPORT BOOL hb_itemParamStoreForward( USHORT uiParam, PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemParamStoreForward(%hu, %p)", uiParam, pItem));
if( hb_param( uiParam, HB_IT_BYREF ) )
{
hb_itemMoveToRef( hb_stackItemFromBase( uiParam ), pItem );
return TRUE;
}
return FALSE;
}
HB_EXPORT USHORT hb_itemPCount( void )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPCount()"));
return ( USHORT ) hb_pcount();
}
HB_EXPORT BOOL hb_itemRelease( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemRelease(%p)", pItem));
if( pItem )
{
hb_gcGripDrop( pItem );
return TRUE;
}
else
return FALSE;
}
HB_EXPORT PHB_ITEM hb_itemArrayNew( ULONG ulLen )
{
PHB_ITEM pItem;
HB_TRACE(HB_TR_DEBUG, ("hb_itemArrayNew(%lu)", ulLen));
pItem = hb_itemNew( NULL );
hb_arrayNew( pItem, ulLen );
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemArrayGet( PHB_ITEM pArray, ULONG ulIndex )
{
PHB_ITEM pItem;
HB_TRACE(HB_TR_DEBUG, ("hb_itemArrayGet(%p, %lu)", pArray, ulIndex));
pItem = hb_itemNew( NULL );
if( pArray )
hb_arrayGet( pArray, ulIndex, pItem );
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemArrayPut( PHB_ITEM pArray, ULONG ulIndex, PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemArrayPut(%p, %lu, %p)", pArray, ulIndex, pItem));
if( pArray )
hb_arraySet( pArray, ulIndex, pItem );
return pArray;
}
HB_EXPORT PHB_ITEM hb_itemPutC( PHB_ITEM pItem, const char * szText )
{
ULONG ulLen = szText ? strlen( szText ) : 0;
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutC(%p, %s)", pItem, szText));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
if( ulLen == 0 )
{
pItem->item.asString.value = "";
pItem->item.asString.length = 0;
pItem->item.asString.allocated = 0;
}
else if( ulLen == 1 )
{
pItem->item.asString.value = ( char * ) hb_szAscii[ (unsigned char) ( szText[0] ) ];
pItem->item.asString.length = 1;
pItem->item.asString.allocated = 0;
}
else
{
pItem->item.asString.value = ( char * ) hb_xgrab( ulLen + 1 );
/* we used strlen() above so we know it's 0-ended string */
hb_xmemcpy( pItem->item.asString.value, szText, ulLen + 1 );
pItem->item.asString.length = ulLen;
pItem->item.asString.allocated = ulLen + 1;
}
pItem->type = HB_IT_STRING;
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutCL( PHB_ITEM pItem, const char * szText, ULONG ulLen )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutCL(%p, %s, %lu)", pItem, szText, ulLen));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
/* NOTE: CA-Clipper seems to be buggy here, it will return ulLen bytes of
trash if the szText buffer is NULL, at least with hb_retclen().
[vszakats] */
if( szText == NULL || ulLen == 0 )
{
pItem->item.asString.value = "";
pItem->item.asString.length = 0;
pItem->item.asString.allocated = 0;
}
else if( ulLen == 1 )
{
pItem->item.asString.value = ( char * ) hb_szAscii[ (unsigned char) ( szText[0] ) ];
pItem->item.asString.length = 1;
pItem->item.asString.allocated = 0;
}
else
{
pItem->item.asString.value = ( char * ) hb_xgrab( ulLen + 1 );
hb_xmemcpy( pItem->item.asString.value, szText, ulLen );
pItem->item.asString.value[ ulLen ] = '\0';
pItem->item.asString.length = ulLen;
pItem->item.asString.allocated = ulLen + 1;
}
pItem->type = HB_IT_STRING;
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutCConst( PHB_ITEM pItem, const char * szText )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutCConst(%p, %s)", pItem, szText));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_STRING;
pItem->item.asString.allocated = 0;
if( szText == NULL )
{
pItem->item.asString.value = "";
pItem->item.asString.length = 0;
}
else
{
pItem->item.asString.value = ( char * ) szText;
pItem->item.asString.length = strlen( szText );
}
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutCLConst( PHB_ITEM pItem, const char * szText, ULONG ulLen )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutCConst(%p, %s, %lu)", pItem, szText, ulLen));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_STRING;
pItem->item.asString.allocated = 0;
if( szText == NULL )
{
pItem->item.asString.value = "";
pItem->item.asString.length = 0;
}
else
{
if( szText[ ulLen ] != '\0' )
hb_errInternal( 6003, "Internal error: hb_itemPutCLConst() missing termination character", NULL, NULL );
pItem->item.asString.value = ( char * ) szText;
pItem->item.asString.length = ulLen;
}
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutCPtr( PHB_ITEM pItem, char * szText, ULONG ulLen )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutCPtr(%p, %s, %lu)", pItem, szText, ulLen));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_STRING;
pItem->item.asString.length = ulLen;
if( ulLen == 0 )
{
pItem->item.asString.allocated = 0;
pItem->item.asString.value = "";
hb_xfree( szText );
}
else if( ulLen == 1 )
{
pItem->item.asString.allocated = 0;
pItem->item.asString.value = ( char * ) hb_szAscii[ (unsigned char) ( szText[0] ) ];
hb_xfree( szText );
}
else
{
szText[ ulLen ] = '\0';
pItem->item.asString.allocated = ulLen + 1;
pItem->item.asString.value = szText;
}
return pItem;
}
HB_EXPORT void hb_itemSetCMemo( PHB_ITEM pItem )
{
if( pItem && HB_IS_STRING( pItem ) )
pItem->type |= HB_IT_MEMOFLAG;
}
/* NOTE: The caller should free the pointer if it's not NULL. [vszakats] */
HB_EXPORT char * hb_itemGetC( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetC(%p)", pItem));
if( pItem && HB_IS_STRING( pItem ) )
{
char * szResult = ( char * ) hb_xgrab( pItem->item.asString.length + 1 );
hb_xmemcpy( szResult, pItem->item.asString.value, pItem->item.asString.length );
szResult[ pItem->item.asString.length ] = '\0';
return szResult;
}
else
return NULL;
}
/* NOTE: Caller should not modify the buffer returned by this function.
[vszakats] */
HB_EXPORT char * hb_itemGetCPtr( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetCPtr(%p)", pItem));
if( pItem && HB_IS_STRING( pItem ) )
return pItem->item.asString.value;
else
return "";
}
HB_EXPORT ULONG hb_itemGetCLen( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetCLen(%p)", pItem));
if( pItem && HB_IS_STRING( pItem ) )
return pItem->item.asString.length;
else
return 0;
}
HB_EXPORT ULONG hb_itemCopyC( PHB_ITEM pItem, char * szBuffer, ULONG ulLen )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemCopyC(%p, %s, %lu)", pItem, szBuffer, ulLen));
if( pItem && HB_IS_STRING( pItem ) )
{
if( ulLen == 0 || ulLen > pItem->item.asString.length )
ulLen = pItem->item.asString.length;
hb_xmemcpy( szBuffer, pItem->item.asString.value, ulLen );
return ulLen;
}
else
return 0;
}
HB_EXPORT BOOL hb_itemFreeC( char * szText )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemFreeC(%s)", szText));
if( szText )
{
hb_xfree( szText );
return TRUE;
}
else
return FALSE;
}
/* NOTE: Clipper is buggy and will not append a trailing zero, although
the NG says that it will. Check your buffers, since what may have
worked with Clipper could overrun the buffer with Harbour.
The correct buffer size is 9 bytes: char szDate[ 9 ]
[vszakats] */
HB_EXPORT char * hb_itemGetDS( PHB_ITEM pItem, char * szDate )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetDS(%p, %s)", szDate));
if( pItem && HB_IS_DATE( pItem ) )
return hb_dateDecStr( szDate, pItem->item.asDate.value );
else
return hb_dateDecStr( szDate, 0 );
}
HB_EXPORT long hb_itemGetDL( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetDL(%p)", pItem));
if( pItem && HB_IS_DATE( pItem ) )
return pItem->item.asDate.value;
else
return 0;
}
HB_EXPORT BOOL hb_itemGetL( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetL(%p)", pItem));
if( pItem )
{
if( HB_IS_LOGICAL( pItem ) )
return pItem->item.asLogical.value;
else if( HB_IS_INTEGER( pItem ) )
return pItem->item.asInteger.value != 0;
else if( HB_IS_LONG( pItem ) )
return pItem->item.asLong.value != 0;
else if( HB_IS_DOUBLE( pItem ) )
return pItem->item.asDouble.value != 0.0;
}
return FALSE;
}
HB_EXPORT double hb_itemGetND( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetND(%p)", pItem));
if( pItem )
{
if( HB_IS_DOUBLE( pItem ) )
return pItem->item.asDouble.value;
else if( HB_IS_INTEGER( pItem ) )
return ( double ) pItem->item.asInteger.value;
else if( HB_IS_LONG( pItem ) )
return ( double ) pItem->item.asLong.value;
}
return 0;
}
HB_EXPORT int hb_itemGetNI( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetNI(%p)", pItem));
if( pItem )
{
if( HB_IS_INTEGER( pItem ) )
return pItem->item.asInteger.value;
else if( HB_IS_LONG( pItem ) )
return ( int ) pItem->item.asLong.value;
else if( HB_IS_DOUBLE( pItem ) )
return ( int ) pItem->item.asDouble.value;
}
return 0;
}
HB_EXPORT LONG hb_itemGetNL( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetNL(%p)", pItem));
if( pItem )
{
if( HB_IS_LONG( pItem ) )
return ( LONG ) pItem->item.asLong.value;
else if( HB_IS_INTEGER( pItem ) )
return ( LONG ) pItem->item.asInteger.value;
else if( HB_IS_DOUBLE( pItem ) )
#ifdef __GNUC__
return ( LONG ) ( ULONG ) pItem->item.asDouble.value;
#else
return ( LONG ) pItem->item.asDouble.value;
#endif
else if( HB_IS_DATE( pItem ) )
return ( LONG ) pItem->item.asDate.value;
}
return 0;
}
HB_EXPORT HB_LONG hb_itemGetNInt( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetNL(%p)", pItem));
if( pItem )
{
if( HB_IS_LONG( pItem ) )
return ( HB_LONG ) pItem->item.asLong.value;
else if( HB_IS_INTEGER( pItem ) )
return ( HB_LONG ) pItem->item.asInteger.value;
else if( HB_IS_DOUBLE( pItem ) )
#ifdef __GNUC__
return ( HB_LONG ) ( HB_ULONG ) pItem->item.asDouble.value;
#else
return ( HB_LONG ) pItem->item.asDouble.value;
#endif
else if( HB_IS_DATE( pItem ) )
return ( LONG ) pItem->item.asDate.value;
}
return 0;
}
#ifndef HB_LONG_LONG_OFF
HB_EXPORT LONGLONG hb_itemGetNLL( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetNL(%p)", pItem));
if( pItem )
{
if( HB_IS_LONG( pItem ) )
return ( LONGLONG ) pItem->item.asLong.value;
else if( HB_IS_INTEGER( pItem ) )
return ( LONGLONG ) pItem->item.asInteger.value;
else if( HB_IS_DOUBLE( pItem ) )
#ifdef __GNUC__
return ( LONGLONG ) ( ULONGLONG ) pItem->item.asDouble.value;
#else
return ( LONGLONG ) pItem->item.asDouble.value;
#endif
else if( HB_IS_DATE( pItem ) )
return ( LONGLONG ) pItem->item.asDate.value;
}
return 0;
}
#endif
HB_EXPORT void * hb_itemGetPtr( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetPtr(%p)", pItem));
if( pItem && HB_IS_POINTER( pItem ) )
return pItem->item.asPointer.value;
else
return NULL;
}
HB_EXPORT void * hb_itemGetPtrGC( PHB_ITEM pItem, HB_GARBAGE_FUNC_PTR pFunc )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetPtrGC(%p,%p)", pItem, pFunc));
if( pItem && HB_IS_POINTER( pItem ) &&
pItem->item.asPointer.collect &&
hb_gcFunc( pItem->item.asPointer.value ) == pFunc )
return pItem->item.asPointer.value;
else
return NULL;
}
HB_EXPORT PHB_SYMB hb_itemGetSymbol( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetSymbol(%p)", pItem));
if( pItem && HB_IS_SYMBOL( pItem ) )
return pItem->item.asSymbol.value;
else
return NULL;
}
HB_EXPORT PHB_ITEM hb_itemReturn( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemReturn(%p)", pItem));
if( pItem )
hb_itemCopy( hb_stackReturnItem(), pItem );
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemReturnForward( PHB_ITEM pItem )
{
HB_TRACE_STEALTH( HB_TR_DEBUG, ("hb_itemReturnForward(%p)", pItem ) );
if( pItem )
hb_itemMove( hb_stackReturnItem(), pItem );
return pItem;
}
HB_EXPORT void hb_itemReturnRelease( PHB_ITEM pItem )
{
HB_TRACE_STEALTH( HB_TR_DEBUG, ("hb_itemReturnRelease(%p)", pItem ) );
if( pItem )
{
hb_itemMove( hb_stackReturnItem(), pItem );
hb_itemRelease( pItem );
}
}
HB_EXPORT PHB_ITEM hb_itemPutDS( PHB_ITEM pItem, const char * szDate )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutDS(%p, %s)", pItem, szDate));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_DATE;
pItem->item.asDate.value = hb_dateEncStr( szDate );
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutD( PHB_ITEM pItem, int iYear, int iMonth, int iDay )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutD(%p, %04i, %02i, %02i)", pItem, iYear, iMonth, iDay));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_DATE;
pItem->item.asDate.value = hb_dateEncode( iYear, iMonth, iDay );
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutDL( PHB_ITEM pItem, long lJulian )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutDL(%p, %ld)", pItem, lJulian));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_DATE;
pItem->item.asDate.value = lJulian;
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutL( PHB_ITEM pItem, BOOL bValue )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutL(%p, %d)", pItem, (int) bValue));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_LOGICAL;
pItem->item.asLogical.value = bValue;
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutND( PHB_ITEM pItem, double dNumber )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutND(%p, %lf)", pItem, dNumber));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_DOUBLE;
pItem->item.asDouble.length = HB_DBL_LENGTH( dNumber );
pItem->item.asDouble.decimal = hb_set.HB_SET_DECIMALS;
pItem->item.asDouble.value = dNumber;
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutNI( PHB_ITEM pItem, int iNumber )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNI(%p, %d)", pItem, iNumber));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_INTEGER;
pItem->item.asInteger.value = iNumber;
pItem->item.asInteger.length = HB_INT_LENGTH( iNumber );
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutNL( PHB_ITEM pItem, LONG lNumber )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNL(%p, %ld)", pItem, lNumber));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
#if HB_INT_MAX >= LONG_MAX
pItem->type = HB_IT_INTEGER;
pItem->item.asInteger.value = (int) lNumber;
pItem->item.asInteger.length = HB_INT_LENGTH( lNumber );
#else
pItem->type = HB_IT_LONG;
pItem->item.asLong.value = (HB_LONG) lNumber;
pItem->item.asLong.length = HB_LONG_LENGTH( lNumber );
#endif
return pItem;
}
#ifndef HB_LONG_LONG_OFF
HB_EXPORT PHB_ITEM hb_itemPutNLL( PHB_ITEM pItem, LONGLONG llNumber )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNL(%p, %" PFLL "d)", pItem, llNumber));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
#if HB_LONG_MAX >= LONGLONG_MAX
pItem->type = HB_IT_LONG;
pItem->item.asLong.value = (HB_LONG) llNumber;
pItem->item.asLong.length = HB_LONG_LENGTH( llNumber );
#else
pItem->type = HB_IT_DOUBLE;
pItem->item.asDouble.value = ( double ) llNumber;
pItem->item.asDouble.length = HB_DBL_LENGTH( pItem->item.asDouble.value );
pItem->item.asDouble.decimal = 0;
#endif
return pItem;
}
#endif
HB_EXPORT PHB_ITEM hb_itemPutNInt( PHB_ITEM pItem, HB_LONG lNumber )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNInt(%p, %" PFHL "d)", pItem, lNumber));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
if( HB_LIM_INT( lNumber ) )
{
pItem->type = HB_IT_INTEGER;
pItem->item.asInteger.value = ( int ) lNumber;
/* EXP limit used intentionally */
pItem->item.asInteger.length = HB_INT_EXPLENGTH( lNumber );
}
else
{
pItem->type = HB_IT_LONG;
pItem->item.asLong.value = lNumber;
pItem->item.asLong.length = HB_LONG_LENGTH( lNumber );
}
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutNIntLen( PHB_ITEM pItem, HB_LONG lNumber, int iWidth )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNIntLen(%p, %" PFHL "d, %d)", pItem, lNumber, iWidth));
if( HB_LIM_INT( lNumber ) )
{
return hb_itemPutNILen( pItem, ( int ) lNumber, iWidth );
}
else
{
#ifdef HB_LONG_LONG_OFF
return hb_itemPutNLLen( pItem, ( long ) lNumber, iWidth );
#else
return hb_itemPutNLLLen( pItem, ( LONGLONG ) lNumber, iWidth );
#endif
}
}
HB_EXPORT PHB_ITEM hb_itemPutNLen( PHB_ITEM pItem, double dNumber, int iWidth, int iDec )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNLen(%p, %lf, %d, %d)", pItem, dNumber, iWidth, iDec));
if( iWidth <= 0 || iWidth > 99 )
iWidth = HB_DBL_LENGTH( dNumber );
if( iDec < 0 )
iDec = hb_set.HB_SET_DECIMALS;
if( iDec > 0 )
return hb_itemPutNDLen( pItem, dNumber, iWidth, iDec );
else if ( HB_DBL_LIM_INT( dNumber ) )
return hb_itemPutNILen( pItem, ( int ) dNumber, iWidth );
else if ( HB_DBL_LIM_LONG( dNumber ) )
#ifdef HB_LONG_LONG_OFF
return hb_itemPutNLLen( pItem, ( long ) dNumber, iWidth );
#else
return hb_itemPutNLLLen( pItem, ( LONGLONG ) dNumber, iWidth );
#endif
else
return hb_itemPutNDLen( pItem, dNumber, iWidth, 0 );
}
HB_EXPORT PHB_ITEM hb_itemPutNDLen( PHB_ITEM pItem, double dNumber, int iWidth, int iDec )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNDLen(%p, %lf, %d, %d)", pItem, dNumber, iWidth, iDec));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
if( iWidth <= 0 || iWidth > 99 )
{
#if (__BORLANDC__ > 1040) /* Use this only above Borland C++ 3.1 */
/* Borland C compiled app crashes if a "NaN" double is compared with another double [martin vogel] */
if( _isnan( dNumber ) )
{
iWidth = 20;
}
else
#endif
iWidth = HB_DBL_LENGTH( dNumber );
}
if( iDec < 0 )
iDec = hb_set.HB_SET_DECIMALS;
pItem->type = HB_IT_DOUBLE;
pItem->item.asDouble.length = iWidth;
pItem->item.asDouble.decimal = iDec;
pItem->item.asDouble.value = dNumber;
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutNDDec( PHB_ITEM pItem, double dNumber, int iDec )
{
HB_TRACE_STEALTH(HB_TR_DEBUG, ("hb_itemPutNDDec(%p, %lf, %i)", pItem, dNumber, iDec));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_DOUBLE;
pItem->item.asDouble.length = HB_DBL_LENGTH( dNumber );
if( iDec == HB_DEFAULT_DECIMALS )
{
pItem->item.asDouble.decimal = hb_set.HB_SET_DECIMALS;
}
else
{
pItem->item.asDouble.decimal = iDec;
}
pItem->item.asDouble.value = dNumber;
return pItem;
}
HB_EXPORT double hb_itemGetNDDec( PHB_ITEM pItem, int * piDec )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetNDDec(%p,%p)", pItem, piDec));
if( HB_IS_INTEGER( pItem ) )
{
*piDec = 0;
return ( double ) pItem->item.asInteger.value;
}
else if( HB_IS_LONG( pItem ) )
{
*piDec = 0;
return ( double ) pItem->item.asLong.value;
}
else if( HB_IS_DOUBLE( pItem ) )
{
*piDec = pItem->item.asDouble.decimal;
return pItem->item.asDouble.value;
}
*piDec = 0;
return 0.0;
}
HB_EXPORT PHB_ITEM hb_itemPutNILen( PHB_ITEM pItem, int iNumber, int iWidth )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNILen(%p, %d, %d)", pItem, iNumber, iWidth));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
if( iWidth <= 0 || iWidth > 99 )
iWidth = HB_INT_LENGTH( iNumber );
pItem->type = HB_IT_INTEGER;
pItem->item.asInteger.length = iWidth;
pItem->item.asInteger.value = iNumber;
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutNLLen( PHB_ITEM pItem, LONG lNumber, int iWidth )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNLLen(%p, %ld, %d)", pItem, lNumber, iWidth));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
#if HB_INT_MAX == LONG_MAX
if( iWidth <= 0 || iWidth > 99 )
iWidth = HB_INT_LENGTH( lNumber );
pItem->type = HB_IT_INTEGER;
pItem->item.asInteger.value = (int) lNumber;
pItem->item.asInteger.length = iWidth;
#else
if( iWidth <= 0 || iWidth > 99 )
iWidth = HB_LONG_LENGTH( lNumber );
pItem->type = HB_IT_LONG;
pItem->item.asLong.value = (HB_LONG) lNumber;
pItem->item.asLong.length = iWidth;
#endif
return pItem;
}
#ifndef HB_LONG_LONG_OFF
HB_EXPORT PHB_ITEM hb_itemPutNLLLen( PHB_ITEM pItem, LONGLONG llNumber, int iWidth )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNLLLen(%p, %" PFLL "d, %d)", pItem, llNumber, iWidth));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
#if HB_LONG_MAX >= LONGLONG_MAX
if( iWidth <= 0 || iWidth > 99 )
iWidth = HB_LONG_LENGTH( llNumber );
pItem->type = HB_IT_LONG;
pItem->item.asLong.value = ( HB_LONG ) llNumber;
pItem->item.asLong.length = iWidth;
#else
pItem->type = HB_IT_DOUBLE;
pItem->item.asDouble.value = ( double ) llNumber;
if( iWidth <= 0 || iWidth > 99 )
iWidth = HB_LONG_LENGTH( pItem->item.asDouble.value );
pItem->item.asDouble.length = iWidth;
pItem->item.asDouble.decimal = 0;
#endif
return pItem;
}
#endif
HB_EXPORT PHB_ITEM hb_itemPutNumType( PHB_ITEM pItem, double dNumber, int iDec, int iType1, int iType2 )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutNumType( %p, %lf, %d, %i, %i)", pItem, dNumber, iDec, iType1, iType2));
if( iDec || iType1 & HB_IT_DOUBLE || iType2 & HB_IT_DOUBLE )
{
return hb_itemPutNDDec( pItem, dNumber, iDec );
}
else if ( HB_DBL_LIM_INT( dNumber ) )
{
return hb_itemPutNI( pItem, ( int ) dNumber );
}
else if ( HB_DBL_LIM_LONG( dNumber ) )
{
#ifdef HB_LONG_LONG_OFF
return hb_itemPutNL( pItem, ( long ) dNumber );
#else
return hb_itemPutNLL( pItem, ( LONGLONG ) dNumber );
#endif
}
else
{
return hb_itemPutND( pItem, dNumber );
}
}
HB_EXPORT PHB_ITEM hb_itemPutPtr( PHB_ITEM pItem, void * pValue )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutPtr(%p, %p)", pItem, pValue));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_POINTER;
pItem->item.asPointer.value = pValue;
pItem->item.asPointer.collect =
pItem->item.asPointer.single = FALSE;
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutPtrGC( PHB_ITEM pItem, void * pValue )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutPtrGC(%p, %p)", pItem, pValue));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_POINTER;
pItem->item.asPointer.value = pValue;
pItem->item.asPointer.collect = TRUE;
pItem->item.asPointer.single = FALSE;
return pItem;
}
HB_EXPORT PHB_ITEM hb_itemPutSymbol( PHB_ITEM pItem, PHB_SYMB pSym )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemPutSymbol(%p,%p)", pItem, pSym));
if( pItem )
{
if( HB_IS_COMPLEX( pItem ) )
hb_itemClear( pItem );
}
else
pItem = hb_itemNew( NULL );
pItem->type = HB_IT_SYMBOL;
pItem->item.asSymbol.value = pSym;
pItem->item.asSymbol.stackstate = NULL;
pItem->item.asSymbol.paramcnt =
pItem->item.asSymbol.paramdeclcnt = 0;
return pItem;
}
HB_EXPORT void hb_itemGetNLen( PHB_ITEM pItem, int * piWidth, int * piDecimal )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemGetNLen(%p, %p, %p)", pItem, piWidth, piDecimal));
if( pItem )
{
if( HB_IS_DOUBLE( pItem ) )
{
if( piWidth ) *piWidth = ( int ) pItem->item.asDouble.length;
if( piDecimal ) *piDecimal = ( int ) pItem->item.asDouble.decimal;
}
else if( HB_IS_INTEGER( pItem ) )
{
if( piWidth ) *piWidth = ( int ) pItem->item.asInteger.length;
if( piDecimal ) *piDecimal = 0;
}
else if( HB_IS_LONG( pItem ) )
{
if( piWidth ) *piWidth = ( int ) pItem->item.asLong.length;
if( piDecimal ) *piDecimal = 0;
}
else
{
if( piWidth ) *piWidth = 0;
if( piDecimal ) *piDecimal = 0;
}
}
}
HB_EXPORT ULONG hb_itemSize( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemSize(%p)", pItem));
if( pItem )
{
if( HB_IS_STRING( pItem ) )
return pItem->item.asString.length;
else if( HB_IS_ARRAY( pItem ) )
return hb_arrayLen( pItem );
else if( HB_IS_HASH( pItem ) )
return hb_hashLen( pItem );
}
return 0;
}
HB_EXPORT HB_TYPE hb_itemType( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemType(%p)", pItem));
if( pItem )
return ( HB_TYPE ) HB_ITEM_TYPE( pItem );
else
return HB_IT_NIL;
}
HB_EXPORT char * hb_itemTypeStr( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemTypeStr(%p)", pItem));
switch( HB_ITEM_TYPE( pItem ) )
{
case HB_IT_ARRAY:
return ( char * ) ( hb_arrayIsObject( pItem ) ? "O" : "A" );
case HB_IT_BLOCK:
return "B";
case HB_IT_DATE:
return "D";
case HB_IT_LOGICAL:
return "L";
case HB_IT_INTEGER:
case HB_IT_LONG:
case HB_IT_DOUBLE:
return "N";
case HB_IT_STRING:
return "C";
case HB_IT_MEMO:
return "M";
case HB_IT_HASH:
return "H";
case HB_IT_POINTER:
return "P";
case HB_IT_SYMBOL:
return "S";
}
return "U";
}
/* Internal API, not standard Clipper */
HB_EXPORT void hb_itemInit( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemInit(%p)", pItem));
if( pItem )
pItem->type = HB_IT_NIL;
}
HB_EXPORT void hb_itemClear( PHB_ITEM pItem )
{
HB_TYPE type;
HB_TRACE(HB_TR_DEBUG, ("hb_itemClear(%p)", pItem));
type = HB_ITEM_TYPERAW( pItem );
pItem->type = HB_IT_NIL;
if( type & HB_IT_STRING )
{
if( pItem->item.asString.allocated )
hb_xRefFree( pItem->item.asString.value );
}
else if( type & HB_IT_ARRAY )
hb_gcRefFree( pItem->item.asArray.value );
else if( type & HB_IT_BLOCK )
hb_gcRefFree( pItem->item.asBlock.value );
else if( type & HB_IT_HASH )
hb_gcRefFree( pItem->item.asHash.value );
else if( type & HB_IT_BYREF )
{
if( type & HB_IT_MEMVAR )
hb_memvarValueDecRef( pItem->item.asMemvar.value );
else if( type & HB_IT_ENUM ) /* FOR EACH control variable */
hb_vmEnumRelease( pItem->item.asEnum.basePtr,
pItem->item.asEnum.valuePtr );
else if( type & HB_IT_EXTREF )
pItem->item.asExtRef.func->clear( pItem->item.asExtRef.value );
else if( pItem->item.asRefer.offset == 0 && pItem->item.asRefer.value >= 0 )
hb_gcRefFree( pItem->item.asRefer.BasePtr.array );
}
else if( type & HB_IT_POINTER )
{
if( pItem->item.asPointer.collect )
hb_gcRefFree( pItem->item.asPointer.value );
}
}
/* Internal API, not standard Clipper */
HB_EXPORT void hb_itemCopy( PHB_ITEM pDest, PHB_ITEM pSource )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemCopy(%p, %p)", pDest, pSource));
if( pDest == pSource )
hb_errInternal( HB_EI_ITEMBADCOPY, NULL, "hb_itemCopy()", NULL );
if( HB_IS_COMPLEX( pDest ) )
hb_itemClear( pDest );
memcpy( pDest, pSource, sizeof( HB_ITEM ) );
pDest->type &= ~HB_IT_DEFAULT;
if( HB_IS_COMPLEX( pSource ) )
{
if( HB_IS_STRING( pSource ) )
{
if( pSource->item.asString.allocated )
hb_xRefInc( pSource->item.asString.value );
}
else if( HB_IS_ARRAY( pSource ) )
hb_gcRefInc( pSource->item.asArray.value );
else if( HB_IS_BLOCK( pSource ) )
hb_gcRefInc( pSource->item.asBlock.value );
else if( HB_IS_HASH( pSource ) )
hb_gcRefInc( pSource->item.asHash.value );
else if( HB_IS_BYREF( pSource ) )
{
if( HB_IS_MEMVAR( pSource ) )
hb_memvarValueIncRef( pSource->item.asMemvar.value );
else if( HB_IS_ENUM( pSource ) ) /* enumerators cannnot be copied */
pDest->type = HB_IT_NIL;
else if( HB_IS_EXTREF( pSource ) )
pSource->item.asExtRef.func->copy( pDest );
else if( pSource->item.asRefer.offset == 0 && pSource->item.asRefer.value >= 0 )
hb_gcRefInc( pSource->item.asRefer.BasePtr.array );
}
else if( HB_IS_POINTER( pSource ) )
{
if( pSource->item.asPointer.collect )
{
if( pSource->item.asPointer.single )
pDest->item.asPointer.collect = FALSE;
else
hb_gcRefInc( pSource->item.asPointer.value );
}
}
}
}
/* Internal API, not standard Clipper */
void hb_itemCopyToRef( PHB_ITEM pDest, PHB_ITEM pSource )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemCopyToRef(%p, %p)", pDest, pSource));
if( HB_IS_BYREF( pDest ) )
{
pDest = hb_itemUnRefWrite( pDest, pSource );
if( !pDest || pDest == pSource )
/* extended reference or pDest is a reference to pSource
- do not copy */
return;
}
if( HB_IS_BYREF( pSource ) )
{
if( hb_itemUnRef( pSource ) == pDest )
/*
* assign will create cyclic reference
* pSource and pDest reference to the same item
* we can simply drop coping
*/
return;
}
if( HB_IS_OBJECT( pDest ) &&
hb_objOperatorCall( HB_OO_OP_ASSIGN, pDest, pDest, pSource, NULL ) )
return;
hb_itemCopy( pDest, pSource );
}
/* Internal API, not standard Clipper */
void hb_itemCopyFromRef( PHB_ITEM pDest, PHB_ITEM pSource )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemCopyFromRef(%p, %p)", pDest, pSource));
if( HB_IS_BYREF( pSource ) )
{
pSource = hb_itemUnRef( pSource );
if( pDest == pSource )
/* pSource is a reference to pDest - do not copy */
return;
}
hb_itemCopy( pDest, pSource );
}
/*
* copy (transfer) the value of item without increasing
* a reference counters, the pSource item is cleared
*/
HB_EXPORT void hb_itemMove( PHB_ITEM pDest, PHB_ITEM pSource )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemMove(%p, %p)", pDest, pSource));
if( pDest == pSource )
hb_errInternal( HB_EI_ITEMBADCOPY, NULL, "hb_itemMove()", NULL );
if( HB_IS_COMPLEX( pDest ) )
hb_itemClear( pDest );
memcpy( pDest, pSource, sizeof( HB_ITEM ) );
pDest->type &= ~HB_IT_DEFAULT;
pSource->type = HB_IT_NIL;
}
/* Internal API, not standard Clipper */
void hb_itemMoveRef( PHB_ITEM pDest, PHB_ITEM pSource )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemMoveRef(%p, %p)", pDest, pSource));
if( HB_IS_BYREF( pSource ) )
{
if( hb_itemUnRef( pSource ) == ( HB_IS_BYREF( pDest ) ?
hb_itemUnRef( pDest ) : pDest ) )
{
/*
* assign will create cyclic reference
* pSource is a reference to pDest
* we can simply drop coping
*/
hb_itemSetNil( pSource );
return;
}
}
if( HB_IS_COMPLEX( pDest ) )
hb_itemClear( pDest );
memcpy( pDest, pSource, sizeof( HB_ITEM ) );
pDest->type &= ~HB_IT_DEFAULT;
pSource->type = HB_IT_NIL;
}
/* Internal API, not standard Clipper */
void hb_itemMoveToRef( PHB_ITEM pDest, PHB_ITEM pSource )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemMoveToRef(%p, %p)", pDest, pSource));
if( HB_IS_BYREF( pDest ) )
{
pDest = hb_itemUnRefWrite( pDest, pSource );
if( !pDest || pDest == pSource )
{
/* extended reference or pDest is a reference to pSource
- do not copy */
hb_itemSetNil( pSource );
return;
}
}
if( HB_IS_BYREF( pSource ) )
{
if( hb_itemUnRef( pSource ) == pDest )
{
/*
* assign will create cyclic reference
* pSource and pDest reference to the same item
* we can simply drop coping
*/
hb_itemSetNil( pSource );
return;
}
}
if( HB_IS_OBJECT( pDest ) &&
hb_objOperatorCall( HB_OO_OP_ASSIGN, pDest, pDest, pSource, NULL ) )
{
hb_itemSetNil( pSource );
return;
}
if( HB_IS_COMPLEX( pDest ) )
hb_itemClear( pDest );
memcpy( pDest, pSource, sizeof( HB_ITEM ) );
pDest->type &= ~HB_IT_DEFAULT;
pSource->type = HB_IT_NIL;
}
void hb_itemMoveFromRef( PHB_ITEM pDest, PHB_ITEM pSource )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemCopyFromRef(%p, %p)", pDest, pSource));
if( HB_IS_BYREF( pSource ) )
{
PHB_ITEM pUnRef = hb_itemUnRef( pSource );
if( pDest != pUnRef )
/* pSource is not a reference to pDest - make copy */
hb_itemCopy( pDest, pUnRef );
hb_itemClear( pSource );
}
else
hb_itemMove( pDest, pSource );
}
/* Internal API, not standard Clipper */
HB_EXPORT void hb_itemSwap( PHB_ITEM pItem1, PHB_ITEM pItem2 )
{
HB_ITEM temp;
HB_TRACE(HB_TR_DEBUG, ("hb_itemSwap(%p, %p)", pItem1, pItem2));
/*
* It's safe to use this version because our GC cannot be
* activated inside memcpy()
*/
memcpy( &temp, pItem2, sizeof( HB_ITEM ) );
memcpy( pItem2, pItem1, sizeof( HB_ITEM ) );
memcpy( pItem1, &temp, sizeof( HB_ITEM ) );
pItem1->type &= ~HB_IT_DEFAULT;
pItem2->type &= ~HB_IT_DEFAULT;
}
/* Internal API, not standard Clipper */
/* De-references item passed by the reference */
PHB_ITEM hb_itemUnRefOnce( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemUnRefOnce(%p)", pItem));
if( HB_IS_BYREF( pItem ) )
{
if( HB_IS_MEMVAR( pItem ) )
{
HB_VALUE_PTR pValue;
pValue = *( pItem->item.asMemvar.itemsbase ) +
pItem->item.asMemvar.value;
pItem = pValue->pVarItem;
}
else if( HB_IS_ENUM( pItem ) ) /* FOR EACH control variable */
{
/* enumerator variable */
if( pItem->item.asEnum.valuePtr )
return pItem->item.asEnum.valuePtr;
else
{
PHB_ITEM pBase = HB_IS_BYREF( pItem->item.asEnum.basePtr ) ?
hb_itemUnRef( pItem->item.asEnum.basePtr ) :
pItem->item.asEnum.basePtr;
if( HB_IS_ARRAY( pBase ) )
{
pBase = hb_arrayGetItemPtr( pBase, pItem->item.asEnum.offset );
if( pBase )
return pBase;
}
else if( HB_IS_HASH( pBase ) )
{
pBase = hb_hashGetValueAt( pBase, pItem->item.asEnum.offset );
if( pBase )
return pBase;
}
else if( HB_IS_STRING( pBase ) )
{
if( pItem->item.asEnum.offset > 0 &&
( ULONG ) pItem->item.asEnum.offset <= pBase->item.asString.length )
{
pItem->item.asEnum.valuePtr = hb_itemPutCL( NULL,
pBase->item.asString.value + pItem->item.asEnum.offset - 1, 1 );
return pItem->item.asEnum.valuePtr;
}
}
/* put it here to avoid recursive RT error generation */
pItem->item.asEnum.valuePtr = hb_itemNew( NULL );
if( hb_vmRequestQuery() == 0 )
{
hb_itemPutNInt( hb_stackAllocItem(), pItem->item.asEnum.offset );
hb_errRT_BASE( EG_BOUND, 1132, NULL, hb_langDGetErrorDesc( EG_ARRACCESS ),
2, pItem->item.asEnum.basePtr, hb_stackItemFromTop( -1 ) );
hb_stackPop();
}
return pItem->item.asEnum.valuePtr;
}
}
else if( HB_IS_EXTREF( pItem ) )
{
pItem = pItem->item.asExtRef.func->read( pItem );
}
else
{
if( pItem->item.asRefer.value >= 0 )
{
if( pItem->item.asRefer.offset == 0 )
{
/* a reference to a static variable or array item */
if( ( ULONG ) pItem->item.asRefer.value <
pItem->item.asRefer.BasePtr.array->ulLen )
{
pItem = pItem->item.asRefer.BasePtr.array->pItems +
pItem->item.asRefer.value;
}
else if( hb_vmRequestQuery() == 0 )
{
hb_arrayPushBase( pItem->item.asRefer.BasePtr.array );
hb_itemPutNInt( hb_stackAllocItem(), pItem->item.asRefer.value + 1 );
hb_errRT_BASE( EG_BOUND, 1132, NULL, hb_langDGetErrorDesc( EG_ARRACCESS ),
2, hb_stackItemFromTop( -2 ), hb_stackItemFromTop( -1 ) );
hb_stackPop();
hb_stackPop();
/* check it again - user error handler can resize the array */
if( ( ULONG ) pItem->item.asRefer.value <
pItem->item.asRefer.BasePtr.array->ulLen )
{
pItem = pItem->item.asRefer.BasePtr.array->pItems +
pItem->item.asRefer.value;
}
else
/* It's safe to clear the item - if we are here then
the reference chain to this item does not start in
one of the pItem->item.asRefer.BasePtr.array items
or more then one reference to this array exists
so it will not be freed [druzus] */
hb_itemClear( pItem );
}
}
else
{
/* a reference to a local variable */
HB_ITEM_PTR *pLocal;
pLocal = *( pItem->item.asRefer.BasePtr.itemsbasePtr ) +
pItem->item.asRefer.offset + pItem->item.asRefer.value;
pItem = *pLocal;
}
}
else
{
/* local variable referenced in a codeblock */
pItem = hb_codeblockGetRef( pItem->item.asRefer.BasePtr.block,
pItem->item.asRefer.value );
}
}
}
return pItem;
}
/* Internal API, not standard Clipper */
/* De-references item passed by the reference */
PHB_ITEM hb_itemUnRef( PHB_ITEM pItem )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemUnRef(%p)", pItem));
do
{
pItem = hb_itemUnRefOnce( pItem );
}
while( HB_IS_BYREF( pItem ) );
return pItem;
}
/* Unreference passed variable for writing
* Do not unreference string enumerators
*/
PHB_ITEM hb_itemUnRefWrite( PHB_ITEM pItem, PHB_ITEM pSource )
{
HB_TRACE(HB_TR_DEBUG, ("hb_itemUnRefWrite(%p,%p)", pItem, pSource));
if( HB_IS_EXTREF( pItem ) )
{
pItem = pItem->item.asExtRef.func->write( pItem, pSource );
}
else if( HB_IS_STRING( pSource ) &&
pSource->item.asString.length == 1 )
{
do
{
if( HB_IS_ENUM( pItem ) && HB_IS_BYREF( pItem->item.asEnum.basePtr ) &&
pItem->item.asEnum.offset >= 1 )
{
PHB_ITEM pBase = hb_itemUnRef( pItem->item.asEnum.basePtr );
if( HB_IS_STRING( pBase ) &&
( ULONG ) pItem->item.asEnum.offset <= pBase->item.asString.length )
{
hb_itemUnShareString( pBase );
pBase->item.asString.value[ pItem->item.asEnum.offset - 1 ] =
pSource->item.asString.value[ 0 ];
return pItem->item.asEnum.valuePtr;
}
}
pItem = hb_itemUnRefOnce( pItem );
}
while( HB_IS_BYREF( pItem ) );
}
else
pItem = hb_itemUnRef( pItem );
return pItem;
}
/* Unreference passed variable
* Do not unreference the last reference stored
*/
PHB_ITEM hb_itemUnRefRefer( PHB_ITEM pItem )
{
PHB_ITEM pLast;
HB_TRACE(HB_TR_DEBUG, ("hb_itemUnRefRefer(%p)", pItem));
do
{
pLast = pItem;
pItem = hb_itemUnRefOnce( pItem );
}
while( HB_IS_BYREF( pItem ) );
return pLast;
}
/* Internal API, not standard Clipper */
/* Resize string buffer of given string item */
PHB_ITEM hb_itemReSizeString( PHB_ITEM pItem, ULONG ulSize )
{
HB_TRACE_STEALTH(HB_TR_DEBUG, ("hb_itemReSizeString(%p,%lu)", pItem, ulSize));
if( pItem->item.asString.allocated == 0 )
{
char *szText = ( char* ) hb_xgrab( ulSize + 1 );
hb_xmemcpy( szText, pItem->item.asString.value,
pItem->item.asString.length );
szText[ ulSize ] = '\0';
pItem->item.asString.value = szText;
pItem->item.asString.length = ulSize;
pItem->item.asString.allocated = ulSize + 1;
}
else
{
ULONG ulAlloc = ulSize + 1 +
( pItem->item.asString.allocated < ulSize ? ulSize : 0 );
pItem->item.asString.value = ( char* )
hb_xRefResize( pItem->item.asString.value,
pItem->item.asString.length,
ulAlloc );
pItem->item.asString.length = ulSize;
pItem->item.asString.allocated = ulAlloc;
pItem->item.asString.value[ ulSize ] = '\0';
}
pItem->type &= ~HB_IT_DEFAULT;
return pItem;
}
/* Internal API, not standard Clipper */
/* UnShare string buffer of given string item */
PHB_ITEM hb_itemUnShareString( PHB_ITEM pItem )
{
HB_TRACE_STEALTH(HB_TR_DEBUG, ("hb_itemUnShareString(%p)", pItem));
if( pItem->item.asString.allocated == 0 ||
hb_xRefCount( pItem->item.asString.value ) > 1 )
{
ULONG ulLen = pItem->item.asString.length + 1;
char *szText = ( char* ) hb_xgrab( ulLen );
hb_xmemcpy( szText, pItem->item.asString.value, ulLen );
if( pItem->item.asString.allocated )
hb_xRefDec( pItem->item.asString.value );
pItem->item.asString.value = szText;
pItem->item.asString.allocated = ulLen;
}
pItem->type &= ~HB_IT_DEFAULT;
return pItem;
}
PHB_ITEM hb_itemUnShare( PHB_ITEM pItem )
{
HB_TRACE_STEALTH(HB_TR_DEBUG, ("hb_itemUnShare(%p)", pItem));
if( HB_IS_BYREF( pItem ) )
pItem = hb_itemUnRef( pItem );
if( HB_IS_STRING( pItem ) )
return hb_itemUnShareString( pItem );
else
return pItem;
}
/* Internal API, not standard Clipper */
/* clone the given item */
HB_EXPORT PHB_ITEM hb_itemClone( PHB_ITEM pItem )
{
HB_TRACE_STEALTH(HB_TR_DEBUG, ("hb_itemClone(%p)", pItem));
if( HB_IS_ARRAY( pItem ) )
{
return hb_arrayClone( pItem );
}
else if( HB_IS_HASH( pItem ) )
{
return hb_hashClone( pItem );
}
else
{
return hb_itemNew( pItem );
}
}
/* Internal API, not standard Clipper */
/* Check whether two strings are equal (0), smaller (-1), or greater (1) */
HB_EXPORT int hb_itemStrCmp( PHB_ITEM pFirst, PHB_ITEM pSecond, BOOL bForceExact )
{
char * szFirst;
char * szSecond;
ULONG ulLenFirst;
ULONG ulLenSecond;
ULONG ulMinLen;
int iRet = 0; /* Current status */
HB_TRACE(HB_TR_DEBUG, ("hb_itemStrCmp(%p, %p, %d)", pFirst, pSecond, (int) bForceExact));
szFirst = pFirst->item.asString.value;
szSecond = pSecond->item.asString.value;
ulLenFirst = pFirst->item.asString.length;
ulLenSecond = pSecond->item.asString.length;
if( hb_set.HB_SET_EXACT && !bForceExact )
{
/* SET EXACT ON and not using == */
/* Don't include trailing spaces */
while( ulLenFirst > ulLenSecond && szFirst[ ulLenFirst - 1 ] == ' ' )
ulLenFirst--;
while( ulLenSecond > ulLenFirst && szSecond[ ulLenSecond - 1 ] == ' ' )
ulLenSecond--;
}
ulMinLen = ulLenFirst < ulLenSecond ? ulLenFirst : ulLenSecond;
/* Both strings not empty */
if( ulMinLen )
{
#ifndef HB_CDP_SUPPORT_OFF
if( hb_cdp_page->lSort )
iRet = hb_cdpcmp( szFirst, ulLenFirst, szSecond, ulLenSecond,
hb_cdp_page, hb_set.HB_SET_EXACT || bForceExact );
else
#endif
{
do
{
if( *szFirst != *szSecond )
{
iRet = ( ( UCHAR ) *szFirst < ( UCHAR ) *szSecond ) ? -1 : 1;
break;
}
szFirst++;
szSecond++;
}
while( --ulMinLen );
/* If equal and length is different ! */
if( !iRet && ulLenFirst != ulLenSecond )
{
/* Force an exact comparison? */
if( hb_set.HB_SET_EXACT || bForceExact || ulLenSecond > ulLenFirst )
iRet = ( ulLenFirst < ulLenSecond ) ? -1 : 1;
}
}
}
else
{
/* Both empty ? */
if( ulLenFirst != ulLenSecond )
{
if( hb_set.HB_SET_EXACT || bForceExact )
iRet = ( ulLenFirst < ulLenSecond ) ? -1 : 1;
else
iRet = ( ulLenSecond == 0 ) ? 0 : -1;
}
else
/* Both empty => Equal ! */
iRet = 0;
}
return iRet;
}
/* Check whether two strings are equal (0), smaller (-1), or greater (1), ignore case */
HB_EXPORT int hb_itemStrICmp( PHB_ITEM pFirst, PHB_ITEM pSecond, BOOL bForceExact )
{
char * szFirst;
char * szSecond;
ULONG ulLenFirst;
ULONG ulLenSecond;
ULONG ulMinLen;
int iRet = 0; /* Current status */
HB_TRACE(HB_TR_DEBUG, ("hb_itemStrICmp(%p, %p, %d)", pFirst, pSecond, (int) bForceExact));
szFirst = pFirst->item.asString.value;
szSecond = pSecond->item.asString.value;
ulLenFirst = pFirst->item.asString.length;
ulLenSecond = pSecond->item.asString.length;
if( hb_set.HB_SET_EXACT && !bForceExact )
{
/* SET EXACT ON and not using == */
/* Don't include trailing spaces */
while( ulLenFirst > ulLenSecond && szFirst[ ulLenFirst - 1 ] == ' ' )
ulLenFirst--;
while( ulLenSecond > ulLenFirst && szSecond[ ulLenSecond - 1 ] == ' ' )
ulLenSecond--;
}
ulMinLen = ulLenFirst < ulLenSecond ? ulLenFirst : ulLenSecond;
/* Both strings not empty */
if( ulMinLen )
{
#ifndef HB_CDP_SUPPORT_OFF
if( hb_cdp_page->lSort )
iRet = hb_cdpicmp( szFirst, ulLenFirst, szSecond, ulLenSecond,
hb_cdp_page, hb_set.HB_SET_EXACT || bForceExact );
else
#endif
{
do
{
int i1 = toupper( ( UCHAR ) *szFirst );
int i2 = toupper( ( UCHAR ) *szSecond );
if( i1 != i2 )
{
iRet = ( i1 < i2 ) ? -1 : 1;
break;
}
szFirst++;
szSecond++;
}
while( --ulMinLen );
/* If equal and length is different ! */
if( !iRet && ulLenFirst != ulLenSecond )
{
/* Force an exact comparison? */
if( hb_set.HB_SET_EXACT || bForceExact || ulLenSecond > ulLenFirst )
iRet = ( ulLenFirst < ulLenSecond ) ? -1 : 1;
}
}
}
else
{
/* Both empty ? */
if( ulLenFirst != ulLenSecond )
{
if( hb_set.HB_SET_EXACT || bForceExact )
iRet = ( ulLenFirst < ulLenSecond ) ? -1 : 1;
else
iRet = ( ulLenSecond == 0 ) ? 0 : -1;
}
else
/* Both empty => Equal ! */
iRet = 0;
}
return iRet;
}
/* converts a numeric to a string with optional width & precision. */
HB_EXPORT BOOL hb_itemStrBuf( char *szResult, PHB_ITEM pNumber, int iSize, int iDec )
{
int iPos, iDot;
BOOL fNeg;
if ( iDec < 0 )
{
iDec = 0;
}
if ( iDec > 0 )
{
iPos = iDot = iSize - iDec - 1;
}
else
{
iPos = iSize;
iDot = 0;
}
if( HB_IS_DOUBLE( pNumber ) )
{
double dNumber = hb_itemGetND( pNumber );
/* TODO: look if finite()/_finite() or isinf()/_isinf and isnan()/_isnan
does exist for your compiler and add this to the check below */
#if defined(__RSXNT__) || defined(__EMX__) || \
defined(__XCC__) || defined(__POCC__) || \
defined(HB_OS_HPUX)
# define HB_FINITE_DBL(d) ( isfinite(d)!=0 )
#elif defined(__WATCOMC__) || defined(__BORLANDC__) || defined(_MSC_VER)
# define HB_FINITE_DBL(d) ( _finite(d)!=0 )
#elif defined(__GNUC__) || defined(__DJGPP__) || defined(__MINGW32__) || \
defined(__LCC__)
# define HB_FINITE_DBL(d) ( finite(d)!=0 )
#else
/* added infinity check for Borland C [martin vogel] */
/* Borland C 5.5 has _finite() function, if it's necessary
we can reenable this code for older DOS BCC versions
Now this code is for generic C compilers undefined above
[druzus] */
static BOOL s_bInfinityInit = FALSE;
static double s_dInfinity = 0;
if( ! s_bInfinityInit )
{
/* set math handler to NULL for evaluating log(0),
to avoid error messages [martin vogel]*/
HB_MATH_HANDLERPROC fOldMathHandler = hb_mathSetHandler (NULL);
s_dInfinity = -log( ( double ) 0 );
hb_mathSetHandler (fOldMathHandler);
s_bInfinityInit = TRUE;
}
# define HB_FINITE_DBL(d) ( (d) != s_dInfinity && (d) != -s_dInfinity )
#endif
if( pNumber->item.asDouble.length == 99 || !HB_FINITE_DBL( dNumber ) )
{
/* Numeric overflow */
iPos = -1;
}
else
{
double dInt, dFract, dDig, doBase = 10.0;
int iPrec, iFirst = -1;
/* dNumber = hb_numRound( dNumber, iDec ); */
#ifdef HB_NUM_PRECISION
iPrec = HB_NUM_PRECISION;
#else
iPrec = 16;
#endif
if ( dNumber < 0 )
{
fNeg = TRUE;
dFract = modf( -dNumber, &dInt );
}
else
{
fNeg = FALSE;
dFract = modf( dNumber, &dInt );
}
while ( iPos-- > 0 )
{
dDig = modf( dInt / doBase + 0.01, &dInt ) * doBase;
szResult[ iPos ] = '0' + ( char ) ( dDig + 0.01 );
if ( szResult[ iPos ] != '0' )
iFirst = iPos;
if ( dInt < 1 )
break;
}
if ( iPos > 0 )
{
memset( szResult, ' ', iPos );
}
if ( iDec > 0 && iPos >= 0 )
{
for ( iPos = iDot + 1; iPos < iSize; iPos++ )
{
dFract = modf( dFract * doBase, &dDig );
szResult[ iPos ] = '0' + ( char ) ( dDig + 0.01 );
if ( iFirst < 0 )
{
if ( szResult[ iPos ] != '0' )
{
iFirst = iPos - 1;
}
}
else if ( iPos - iFirst >= iPrec )
{
break;
}
}
}
/* now try to round the results and set 0 in places over defined
precision, the same is done by Clipper */
if ( iPos >= 0 )
{
int iZer, iLast;
if ( iFirst < 0 )
{
iZer = 0;
}
else
{
iZer = iSize - iFirst - iPrec - ( iDec > 0 ? 1 : 0 );
}
dFract = modf( dFract * doBase, &dDig );
iLast = ( int ) ( dDig + 0.01 );
/* hack for x.xxxx4999999999, f.e. 8.995 ~FL 8.994999999999999218.. */
if ( iLast == 4 && iZer < 0 )
{
for ( iPos = -iZer; iPos > 0; --iPos )
{
dFract = modf( dFract * doBase, &dDig );
if ( dDig + 0.01 < 9 && ( iPos != 1 || dDig < 2 ) )
break;
}
if ( iPos == 0 )
iLast = 5;
}
iLast = iLast >= 5 ? 1 : 0;
iPos = iSize;
while ( iPos-- > 0 )
{
if ( iDec == 0 || iPos != iDot )
{
if ( iZer > 0 )
{
if ( iDec == 0 || iPos <= iDot + 1 )
{
iLast = szResult[ iPos ] >= '5' ? 1 : 0;
}
szResult[ iPos ] = '0';
--iZer;
}
else if ( iLast > 0 )
{
if ( szResult[ iPos ] == '9' )
{
szResult[ iPos ] = '0';
}
else
{
if ( szResult[ iPos ] < '0' ) /* '-' or ' ' */
{
szResult[ iPos ] = '1';
iFirst = iPos;
}
else
{
szResult[ iPos ]++;
if ( iFirst < 0 )
{
iFirst = iPos;
}
}
break;
}
}
else
{
break;
}
}
}
if ( fNeg && iFirst >= 0 && iPos >= 0 )
{
iPos = ( iDot > 0 && iFirst >= iDot ) ? iDot - 2 : iFirst - 1;
if ( iPos >= 0 )
{
szResult[ iPos ] = '-';
}
}
}
}
}
else
{
HB_LONG lNumber;
if( HB_IS_INTEGER( pNumber ) )
lNumber = pNumber->item.asInteger.value;
else if( HB_IS_LONG( pNumber ) )
lNumber = pNumber->item.asLong.value;
else if( HB_IS_DATE( pNumber ) )
lNumber = pNumber->item.asDate.value;
else if( HB_IS_STRING( pNumber ) )
lNumber = pNumber->item.asString.value[0];
else
{
lNumber = 0;
iPos = -1;
}
fNeg = ( lNumber < 0 );
while ( iPos-- > 0 )
{
szResult[ iPos ] = '0' + ( char ) ( fNeg ? -( lNumber % 10 ) : ( lNumber % 10 ) );
lNumber /= 10;
if ( lNumber == 0 )
break;
}
if ( fNeg && iPos-- > 0 )
szResult[ iPos ] = '-';
if ( iPos > 0 )
memset( szResult, ' ', iPos );
if ( iDec > 0 && iPos >= 0 )
memset( &szResult[iSize - iDec], '0', iDec );
}
szResult[ iSize ] = '\0';
/* Set to asterisks in case of overflow */
if( iPos < 0 )
{
memset( szResult, '*', iSize );
return FALSE;
}
else if ( iDot > 0 )
{
szResult[ iDot ] = '.';
}
return TRUE;
}
/* converts a numeric to a string with optional width & precision.
This function should be used by any function that wants to format numeric
data for displaying, printing, or putting in a database.
Note: The caller is responsible for calling hb_xfree to free the results
buffer, but ONLY if the return value is not a NULL pointer! (If a NULL
pointer is returned, then there was a conversion error.)
*/
HB_EXPORT char * hb_itemStr( PHB_ITEM pNumber, PHB_ITEM pWidth, PHB_ITEM pDec )
{
char * szResult = NULL;
HB_TRACE(HB_TR_DEBUG, ("hb_itemStr(%p, %p, %p)", pNumber, pWidth, pDec));
if( pNumber )
{
/* Default to the width and number of decimals specified by the item,
with a limit of 90 integer places, plus one space for the sign. */
int iWidth, iDec, iSize;
hb_itemGetNLen( pNumber, &iWidth, &iDec );
if( iWidth > 90 )
iWidth = 90;
if( pWidth && HB_IS_NUMERIC( pWidth ) )
{
/* If the width parameter is specified, override the default value
and set the number of decimals to zero */
iWidth = hb_itemGetNI( pWidth );
if( iWidth < 1 )
iWidth = 10; /* If 0 or negative, use default */
iDec = 0;
}
/* Clipper ignores decimal places when iWidth is 1 */
if( iWidth > 1 && pDec && HB_IS_NUMERIC( pDec ) )
{
/* This function does not include the decimal places in the width,
so the width must be adjusted downwards, if the decimal places
parameter is greater than 0 */
iDec = hb_itemGetNI( pDec );
if( iDec <= 0 )
iDec = 0;
else if ( pWidth )
iWidth -= ( iDec + 1 );
}
iSize = ( iDec > 0 ? iWidth + 1 + iDec : iWidth );
if( iSize > 0 )
{
szResult = ( char * ) hb_xgrab( iSize + 1 );
hb_itemStrBuf( szResult, pNumber, iSize, iDec );
}
}
return szResult;
}
/* NOTE: The caller must free the pointer if the bFreeReq param gets set to
TRUE, this trick is required to stay thread safe, while minimize
memory allocation and buffer copying.
As a side effect the caller should never modify the returned buffer
since it may point to a constant value. [vszakats] */
HB_EXPORT char * hb_itemString( PHB_ITEM pItem, ULONG * ulLen, BOOL * bFreeReq )
{
char * buffer;
HB_TRACE(HB_TR_DEBUG, ("hb_itemString(%p, %p, %p)", pItem, ulLen, bFreeReq));
switch( HB_ITEM_TYPE( pItem ) )
{
case HB_IT_STRING:
case HB_IT_MEMO:
buffer = hb_itemGetCPtr( pItem );
* ulLen = hb_itemGetCLen( pItem );
* bFreeReq = FALSE;
break;
case HB_IT_DATE:
{
char szDate[ 9 ];
hb_dateDecStr( szDate, pItem->item.asDate.value );
buffer = ( char * ) hb_xgrab( 11 );
hb_dateFormat( szDate, buffer, hb_set.HB_SET_DATEFORMAT );
* ulLen = strlen( buffer );
* bFreeReq = TRUE;
}
break;
case HB_IT_DOUBLE:
case HB_IT_INTEGER:
case HB_IT_LONG:
if( hb_set.HB_SET_FIXED )
{
/* If fixed mode is enabled, use the default number of decimal places. */
hb_itemPutNI( hb_stackAllocItem(), hb_set.HB_SET_DECIMALS );
buffer = hb_itemStr( pItem, NULL, hb_stackItemFromTop( -1 ) );
hb_stackPop();
}
else
buffer = hb_itemStr( pItem, NULL, NULL );
if( buffer )
{
* ulLen = strlen( buffer );
* bFreeReq = TRUE;
}
else
{
buffer = "";
* ulLen = 0;
* bFreeReq = FALSE;
}
break;
case HB_IT_NIL:
buffer = "NIL";
* ulLen = 3;
* bFreeReq = FALSE;
break;
case HB_IT_LOGICAL:
buffer = ( char * ) ( hb_itemGetL( pItem ) ? ".T." : ".F." );
* ulLen = 3;
* bFreeReq = FALSE;
break;
case HB_IT_POINTER:
{
int size = ( sizeof( void * ) << 1 ) + 3; /* n bytes for address + 0x + \0 */
int n;
BOOL bFail = TRUE;
buffer = ( char * ) hb_xgrab( size );
do
{
n = snprintf( buffer, size, "%p", hb_itemGetPtr( pItem ) );
if( (n > -1) && (n < size) )
{
bFail = FALSE;
}
else
{
if( n > -1 )
size = n + 1;
else
size *= 2;
buffer = ( char * ) hb_xrealloc( buffer, size );
}
}
while( bFail );
* ulLen = strlen( buffer );
* bFreeReq = TRUE;
break;
}
default:
buffer = "";
* ulLen = 0;
* bFreeReq = FALSE;
}
return buffer;
}
/* This function is used by all of the PAD functions to prepare the argument
being padded. If date, convert to string using hb_dateFormat(). If numeric,
convert to unpadded string. Return pointer to string and set string length */
HB_EXPORT char * hb_itemPadConv( PHB_ITEM pItem, ULONG * pulSize, BOOL * bFreeReq )
{
HB_TRACE_STEALTH(HB_TR_DEBUG, ("hb_itemPadConv(%p, %p, %p)", pItem, pulSize, bFreeReq));
if( pItem )
{
switch( HB_ITEM_TYPE( pItem ) )
{
case HB_IT_STRING:
case HB_IT_MEMO:
case HB_IT_DATE:
return hb_itemString( pItem, pulSize, bFreeReq );
case HB_IT_DOUBLE:
case HB_IT_INTEGER:
case HB_IT_LONG:
{
int i;
char * buffer = hb_itemString( pItem, pulSize, bFreeReq );
/* remove leading spaces if any, a little bit redundant but
* I don't want to complicate the API interface more. Druzus
*/
for ( i = 0; buffer[i] == ' '; i++ );
if ( i > 0 )
{
int j = 0;
* pulSize -= i;
do
{
buffer[j++] = buffer[i];
}
while ( buffer[i++] );
}
return buffer;
}
default:
break;
}
}
return NULL;
}
HB_EXPORT PHB_ITEM hb_itemValToStr( PHB_ITEM pItem )
{
PHB_ITEM pResult;
char * buffer;
ULONG ulLen;
BOOL bFreeReq;
HB_TRACE(HB_TR_DEBUG, ("hb_itemValToStr(%p)", pItem));
buffer = hb_itemString( pItem, &ulLen, &bFreeReq );
if( bFreeReq )
pResult = hb_itemPutCPtr( NULL, buffer, ulLen );
else
pResult = hb_itemPutCL( NULL, buffer, ulLen );
return pResult;
}
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