Re: [netcdfgroup] Allowed characters in variable names?

I just wrote a small example file (attached), defining to variables: pressure and 2t 

Results from netcdf 3.6.2 (ubuntu hardy default package):

heikok@tko2635:~$ ./write_numeric_varname
try defining pressure ...success
try defining 2t ...success
*** SUCCESS writing example file!


Results from netcdf 3.6.3 (ubuntu lucid default package):

heikok@topp:~$ ./write_numeric_varname
try defining pressure ...success
try defining 2t ...Error: NetCDF: Name contains illegal characters


Best regards,

Heiko

#include <stdio.h>
#include <string.h>
#include <netcdf.h>

/* This is the name of the data file we will create. */
#define FILE_NAME "var_starting_numeric.nc"

/* We are writing 2D data, a 6 x 12 lat-lon grid. We will need two
 * netCDF dimensions. */
#define NDIMS 0

/* Names of things. */
#define PRES_NAME "pressure"
#define TEMP_NAME "2t"

/* Handle errors by printing an error message and exiting with a
 * non-zero status. */
#define ERR(e) {printf("Error: %s\n", nc_strerror(e)); return 2;}

int
main()
{
   int ncid, pres_varid, temp_varid;

   int dimids[NDIMS];
   
   /* Error handling. */
   int retval;


   /* Create the file. */
   if ((retval = nc_create(FILE_NAME, NC_CLOBBER, &ncid)))
      ERR(retval);


   /* Define the netCDF variables. */
   fprintf(stderr, "try defining pressure ...");
   if ((retval = nc_def_var(ncid, PRES_NAME, NC_FLOAT, NDIMS, 
                            dimids, &pres_varid)))
      ERR(retval);
   fprintf(stderr, "success\n");
   fprintf(stderr, "try defining 2t ...");
   if ((retval = nc_def_var(ncid, TEMP_NAME, NC_FLOAT, NDIMS, 
                            dimids, &temp_varid)))
      ERR(retval);
   fprintf(stderr, "success\n");



   /* End define mode. */
   if ((retval = nc_enddef(ncid)))
      ERR(retval);

 
   printf("*** SUCCESS writing example file!\n");
   return 0;
}