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66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
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* Author....: Ted Means
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* CIS ID....: 73067,3332
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*
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* This function is an original work by Ted Means and is placed in the
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* public domain.
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*
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* Modification history:
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* ---------------------
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*
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* Rev 1.1 01 May 1995 03:05:00 TED
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* Added typecast to tame compiler warning
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*
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* Rev 1.0 01 Feb 1995 03:02:00 TED
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* Initial release
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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( FT_DESCEND )
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{
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PHB_ITEM iP = hb_itemParam( 1 );
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HB_TYPE uiType = hb_itemType( iP );
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PHB_ITEM iR = NULL;
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if( ( uiType & HB_IT_NUMERIC ) && ( uiType & HB_IT_DOUBLE ) )
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iR = hb_itemPutND( 0, 0 - hb_itemGetND( iP ) );
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else if( uiType & HB_IT_NUMERIC )
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iR = hb_itemPutNL( 0, 0 - hb_itemGetNL( iP ) );
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else if( uiType & HB_IT_DATE )
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iR = hb_itemPutNL( 0, 0x4FD4C0L - hb_itemGetNL( iP ) );
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else if( uiType & HB_IT_TIMESTAMP )
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iR = hb_itemPutND( 0, 0x4FD4C0L - hb_itemGetTD( iP ) );
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else if( uiType & HB_IT_LOGICAL )
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iR = hb_itemPutL( 0, ( hb_itemGetL( iP ) > 0 ) ? 0 : 1 );
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else if( uiType & HB_IT_STRING )
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{
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HB_SIZE uiLen = hb_itemSize( iP );
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HB_SIZE n;
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char * pDescend = ( char * ) hb_xgrab( uiLen );
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hb_itemCopyC( iP, pDescend, uiLen );
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for( n = 0; n < uiLen; n++ )
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pDescend[ n ] = ( char ) 0 - pDescend[ n ];
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iR = hb_itemPutCL( 0, pDescend, uiLen );
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hb_xfree( pDescend );
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}
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hb_itemReturn( iR );
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hb_itemRelease( iP );
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hb_itemRelease( iR );
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}
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