gcc/testsuite/gcc.c-torture/compile/980504-1.c

   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 }