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45 lines
1.1 KiB
Plaintext
45 lines
1.1 KiB
Plaintext
/*
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* Author....: David Husnian
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* CIS ID....: ?
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*
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* This is an original work by David Husnian 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 1.2 15 Aug 1991 23:02:48 GLENN
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* Forest Belt proofread/edited/cleaned up doc
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*
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* Rev 1.1 14 Jun 1991 19:50:56 GLENN
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* Minor edit to file header
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*
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* Rev 1.0 01 Apr 1991 01:00:36 GLENN
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* Nanforum Toolkit
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*
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*/
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#define CASE_AT( x, y, z ) z[ At( x, y ) + 1 ]
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#define FORCE_BETWEEN( x, y, z ) ( y := Max( Min( y, z ), x ) )
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FUNCTION ft_ASum( aArray, nStartIndex, nEndIndex )
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LOCAL nSumTotal := 0 // Array Sum
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__defaultNIL( @nStartIndex, 1 )
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__defaultNIL( @nEndIndex, Len( aArray ) )
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// Make Sure Bounds are in Range
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FORCE_BETWEEN( 1, nEndIndex, Len( aArray ) )
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FORCE_BETWEEN( 1, nStartIndex, nEndIndex )
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AEval( aArray, ;
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{| xElement | ;
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nSumTotal += ;
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CASE_AT( ValType( xElement ), "NC", ;
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{ 0, xElement, ;
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iif( HB_ISSTRING( xElement ), Len( xElement ), 0 ) } ) }, ;
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nStartIndex, nEndIndex - nStartIndex + 1 )
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RETURN nSumTotal
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