ba237a9d91
Files correlati : Ricompilazione Demo : [ ] Commento : Aggiunti i sorgenti per Greenleaf Math Library (gfm.dll) git-svn-id: svn://10.65.10.50/trunk@10079 c028cbd2-c16b-5b4b-a496-9718f37d4682
62 lines
1.3 KiB
C
Executable File
62 lines
1.3 KiB
C
Executable File
/* int _ScaleDec80Bit(pDst,pSrc1,wID)
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*
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* ARGUMENT
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* pDst is a pointer to the destination DEC structure.
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* pSrc1 is a ptr to the source1 DEC structure.
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* wID is the integer specifying location of implied decimal
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* for the conversion.
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*
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* DESCRIPTION
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* Adjusts the number in pSrc1 (if necessary) while copying it to
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* pDst adjusting pDst to wID number of decimal places. If pDst is null
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* on entry, tries to first create a pDst, then the conversion.
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*
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* SIDE EFFECTS
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* pSrc1 remains unchanged, pDst is undefined on error.
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*
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* RETURNS
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* Returns GM_SUCCESS unless there is an error,
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* in which case it returns the error code.
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*
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*
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* AUTHOR
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* Andy Anderson 27-JAN-1987 19:25
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* Copyright (C) 1988-1990 Greenleaf Software Inc. All rights reserved.
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*
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* MODIFICATIONS
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*
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*/
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#include <stdio.h>
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#include "gm.h"
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#include "gmsystem.h"
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int _ScaleDec80Bit(pDst,pSrc1,wID)
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DEC *pDst, *pSrc1;
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int wID;
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{
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register int i;
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_MacDCopy(pDst,pSrc1);
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i = pSrc1->ls.lid - wID;
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/* Make sure there's an adjustment to do */
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if(i == 0) {
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return(GM_SUCCESS);
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}
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/* set implied decimal */
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pDst->ls.lid = wID;
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if(i>0) {
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_DivUnsArrByPwrOf10( pDst->dc.sl,5,i);
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}
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else {
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if((_MulUnsArrByPwrOf10( pDst->dc.sl, -i, 5)
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!= GM_SUCCESS) || (pDst->dc.msd & 0x8000))
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return(GM_OVERFLOW);
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}
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return(GM_SUCCESS);
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}
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