modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/compile/980504-1.c (about)

     1  typedef struct _geom_elem {
     2    double        coeffs[6];
     3  } pGeomDefRec, *pGeomDefPtr;
     4  typedef struct _mpgeombanddef {
     5  	int	yOut;		 
     6  	int	in_width;	 
     7  } mpGeometryBandRec, *mpGeometryBandPtr;
     8  typedef void *pointer;
     9  typedef unsigned char  CARD8;
    10  typedef CARD8 BytePixel;
    11  void  BiGL_B  (OUTP,srcimg,width,sline,pedpvt,pvtband)	pointer OUTP;
    12  pointer *srcimg;
    13  register int width;
    14  int sline;
    15  pGeomDefPtr pedpvt; mpGeometryBandPtr pvtband;
    16  {
    17    register float s, t, st;
    18    register int 	isrcline,isrcpix;
    19    register int 	srcwidth = pvtband->in_width - 1;
    20    register   BytePixel  val;
    21    register   BytePixel  *ptrIn, *ptrJn;
    22    register double a  = pedpvt->coeffs[0];
    23    register double c  = pedpvt->coeffs[2];
    24    register double srcpix  = a * ((double)(0.0000))  +	pedpvt->coeffs[1] * (pvtband->yOut + ((double)(0.0000)) ) +	pedpvt->coeffs[4];
    25    register double srcline = c * ((double)(0.0000))  +	pedpvt->coeffs[3] * (pvtband->yOut + ((double)(0.0000)) ) +	pedpvt->coeffs[5];
    26    if ( (isrcpix >= 0) && (isrcpix < srcwidth) )
    27      val =	ptrIn[isrcpix]   * ((float)1. - s - t + st) + ptrIn[isrcpix+1] * (s - st) +	ptrJn[isrcpix]   * (t - st) +	ptrJn[isrcpix+1] * (st) +   (float)0.5 ;
    28  }