68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
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/* long ConvDecimalToDollarsAndCents(pc, x )
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*
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* ARGUMENT
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* DEC *x; input DEC
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* int *pc; place to store cents
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*
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* DESCRIPTION
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* Converts DEC to dollars and cents.
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* The number of cents is stored in *pc,
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* while the number of dollars is returned.
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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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* The number of dollars if the conversion is successful,
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* and 0 otherwise.
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*
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* POSSIBLE ERROR CODES
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* GM_NULLPOINTER
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* GM_OVERFLOW
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*
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* AUTHOR
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* Jared Levy Oct. 10, 1989
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* Copyright (C) 1989-1990 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 "gmsystem.h"
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long ConvDecimalToDollarsAndCents(pc, x )
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DEC *x;
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int *pc;
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{
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long d;
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DEC dxc, *xc=&dxc;
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_MacStart(GM_DTODC);
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_MacInVar(x, 0L);
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if (!pc) {
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_MacErr(GM_NULLPOINTER);
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_MacRet(0);
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}
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_ScaleDec80Bit(xc, x, 2);
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if (!xc->ls.lsl[1] && !(xc->ls.lsl[0] & 0x80000000L)) {
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d = xc->ls.lsl[0]/100L;
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*pc = (int) (xc->ls.lsl[0] - d * 100L);
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}
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else {
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*pc = _DivUnsArrByUns(xc->dc.sl, 100, 5);
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if (xc->ls.lsl[1] || (xc->ls.lsl[0] & 0x80000000L)) {
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_MacErr(GM_OVERFLOW);
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_MacRet(0L);
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}
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d = xc->ls.lsl[0];
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}
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if (_MacIsDecN(xc))
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d = -d;
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_MacRet(d);
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}
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