p Check the marshaling facilities (trying to read what we write)
$ rm -f datadesc_usage.out
+! setenv GRAS_NO_WARN_EXPERIMENTAL=1
$ gras/datadesc/datadesc_usage --write "--log=root.fmt:%m%n"
> Write to file datadesc_usage.out
> ---- Test on integer ----
> ---- Test on struct containing dynamic array and its size when size=0 (cbps test) ----
> Exiting GRAS
+! setenv GRAS_NO_WARN_EXPERIMENTAL=1
$ gras/datadesc/datadesc_usage --read "--log=root.fmt:%m%n"
> Read from file datadesc_usage.out
> ---- Test on integer ----