campo-sirio/gfm/dcos.c

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/* DEC *CosineDecimal(pDst,pSrc)
*
* ARGUMENT
* DEC *pDst;
* DEC *pSrc;
*
* DESCRIPTION
* Sets pDst = the cosine of pSrc radians.
*
* SIDE EFFECTS
* None.
*
* RETURNS
* Returns pointer to pDst if successful, otherwise a GM_NULL.
*
* POSSIBLE ERROR CODES
*
* GM_NULLPOINTER
*
* AUTHOR
* Jared Levy Oct 16, 1987
* Copyright (C) 1987-1990 Greenleaf Software Inc. All rights reserved.
*
* MODIFICATIONS
*
*/
#include <stdio.h>
#include "gm.h"
#include "gmsystem.h"
DEC *CosineDecimal(pDst,pSrc)
DEC *pDst;
DEC *pSrc;
{
_MacStart(GM_DCOS);
_MacInVarD(pDst);
_MacOutVarD(pSrc);
_CosDec80Bit(pDst, pSrc);
(void) _Sq5UnsTo4Uns(pDst);
_MacRet(pDst);
}