78 lines
1.2 KiB
C
78 lines
1.2 KiB
C
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/* DEC *FindMaximumDecimalArray(pDst, pSrc, size)
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*
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* ARGUMENT
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* DEC *pSrc[];
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* DEC *pDst;
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* int size;
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*
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* DESCRIPTION
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* Given size DEC pointers stored in the array pSrc, finds the maximum
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* element and stores that value in pDst.
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*
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* SIDE EFFECTS
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* None.
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*
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* RETURNS
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* Returns GM_NULL on error, otherwise pDst.
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*
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* POSSIBLE ERROR CODES
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*
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* GM_NULLPOINTER
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* GM_ARGVAL (when size is 0)
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*
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* AUTHOR
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* AA 9-8-87 10:45
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* Copyright (C) 1987-1990 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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*/
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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 *FindMaximumDecimalArray(pDst, pSrc, size)
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DEC *pSrc[];
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DEC *pDst;
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int size;
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{
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int i,wRetVal,max;
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DEC *pm;
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_MacStart(GM_MAXARR);
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_MacOutVarD(pDst);
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if (!pSrc) {
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_MacErr(GM_NULLPOINTER);
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_MacRet(GM_NULL);
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}
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if (size<=0) {
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_MacErr(GM_ARGVAL);
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_MacRet(GM_NULL);
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}
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for (i=0; i<size; i++) {
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_MacInVarD(pSrc[i]);
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}
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/* initialize the offset into the array of pointers */
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max=0;
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i=1;
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/* stop when the current ptr points to a NULL value */
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while(i<size) {
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wRetVal=CompareDecimal(pSrc[max],pSrc[i]);
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if(wRetVal<0)
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max=i;
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i++;
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}
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pm = pSrc[max];
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_MacDCopy(pDst,pm);
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_MacRet(pDst);
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}
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