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
69 lines
1.2 KiB
C
Executable File
69 lines
1.2 KiB
C
Executable File
/* DEC *SubtractAscii(pDst,pSrc1,pSrc2)
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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 pointer to source1 ASCII string
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* pSrc2 is a pointer to source2 ASCII string
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*
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* DESCRIPTION
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* Subtracts the value in pSrc2 (ASCII) to the value in pSrc1 (ASCII)
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* and puts the result in pDst DEC structure
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*
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* SIDE EFFECTS
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* On overflow, the dest structure is unchanged
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*
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* RETURNS
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* Returns a pointer to the dest structure unless overflow,
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* otherwise, returns a GM_NULL(a C false). On error, the error
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* is in wGMError, unless an error was already there.
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*
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* POSSIBLE ERROR CODES
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*
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* GM_NULLSTRING
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* GM_NAN
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* GM_CNVRE
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* GM_CNVRW
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* GM_OVERFLOW
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*
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* AUTHOR
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* Andy Anderson 20-Feb-87 17:40
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* Copyright (C) 1987-1990 Greenleaf Software Inc. All rights reserved.
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*
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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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DEC *SubtractAscii(pDst,pSrc1,pSrc2)
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DEC *pDst;
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char *pSrc1,*pSrc2;
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{
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DEC ds1,ds2;
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DEC *ps1,*ps2,*pd;
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_MacStart(GM_SUBSTR);
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ps1=&ds1;
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ps2=&ds2;
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/* convert ascii to DEC */
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ps1=ConvAsciiToDecimal(ps1,pSrc1);
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if (!ps1)
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_MacRet(GM_NULL);
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ps2=ConvAsciiToDecimal(ps2,pSrc2);
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if (!ps2)
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_MacRet(GM_NULL);
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pd = SubtractDecimal(pDst,ps1,ps2);
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_MacRet(pd);
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}
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