Fixing IO test error

src/HDF5_wr/HDF5_writer_gd.hpp

@@ -122,7 +122,10 @@ public:
 	    for (int i = 0; i < mpi_rank; i++)
 	    {
 	    	if (mpi_rank == 0)
+	    	{
+	    		/* coverity[dead_error_line] */
 				offset[0] = 0;
+	    	}
 	    	else
 	    		offset[0] += sz_others.get(i);
 	    }

src/HDF5_wr/HDF5_writer_vd.hpp

@@ -117,9 +117,12 @@ public:
 		for (int i = 0; i < mpi_rank; i++)
 		{
 			if (mpi_rank == 0)
+			{
+				/* coverity[dead_error_line] */
 				offset[0] = 0;
+			}
 			else
-				offset[0] += sz_others.get(i);
+			{offset[0] += sz_others.get(i);}
 		}
 
 		int metadata[mpi_size];

src/VTKWriter/VTKWriter_grids_util.hpp

@@ -453,6 +453,8 @@ template<unsigned int dims,typename T> inline void output_point(Point<dims,T> &
 		for ( ; i < 3 ; i++)
 		{
 			// we use float so we have to convert to float
+
+			/* coverity[dead_error_begin] */
 			auto tmp = 0.0;
 			tmp = swap_endian_lt(tmp);
 			v_out.write((const char *)&tmp,sizeof(tmp));

src/VTKWriter/VTKWriter_unit_tests.hpp

@@ -1165,7 +1165,6 @@ BOOST_AUTO_TEST_CASE( vtk_writer_use_point_set_binary )
 
 			v3ps.template get<0>(i)[0] = rng.GetUniform()*0.3;
 			v3ps.template get<0>(i)[1] = rng.GetUniform()*0.3;
-			v3ps.template get<0>(i)[2] = rng.GetUniform()*0.3;
 
 			v1pp.template get<0>(i) = rng.GetUniform();
 			v1pp.template get<1>(i)[0][0] = rng.GetUniform();