Use explict type conversions for size_t/SizeType/double.

examples/cdi_write_hybrid.c

src/async_worker.c

src/cdf_lazy_grid.c

src/cdf_read.c

src/cdf_write.c

src/cdi_int.h

src/grb_read.c

src/grb_write.c

src/gribapi_utilities.c

src/grid.c

src/pio_dist_grid.c

src/stream_cdf_i.c

src/stream_cdf_o.c

src/stream_cgribex.c

src/stream_ext.c

src/stream_ieg.c

src/stream_read.c

src/stream_srv.c

src/stream_write.c

src/vlist.c