[shashank312]

Folks, here is my loop for calculating the sum of volume fractions in a 3x3 stencil of cells. I'm getting an access violation error when I use this loop. Any ideas where the error stems from?

begin_c_loop_all(c,t)
				{
					C_CENTROID(xc,c,t);
					rx = xc[0];
					ry = xc[1];
					if (C_VOF(c,lt) != 1.0 && C_VOF(c,lt) != 0.0 && NV_MAG(C_VOF_G(c,lt)) != 0.0)
					{
						C_CENTROID(xcp,c,lt);
						rpx = xcp[0];
						rpy = xcp[1];
						sum_mh = 0;
						sum_h = 0;
						sum_ph = 0;
						
						if (rpx=rx-delx && rpy>=ry-dely && rpy<=ry+dely)
						{
							sum_mh = sum_mh + (C_VOF(c,lt)*dely);
						}
						
						C_UDMI(c,t,10) = sum_mh;	/* H_i-1 */

						if (rpx=rx && rpy>=ry-dely && rpy<=ry+dely)
						{
							sum_h = sum_h + (C_VOF(c,lt)*dely);
						}

						C_UDMI(c,t,11) = sum_h;	/* H_i */

						if (rpx=rx+delx && rpy>=ry-dely && rpy<=ry+dely)
						{
							sum_ph = sum_ph + (C_VOF(c,lt)*dely);
						}

						C_UDMI(c,t,12) = sum_ph;	/* H_i+1 */
					}
				}
				end_c_loop_all(c,t)