It seems to work OK with netcdf-4.1.3 and hdf5-1.8.7 on a 64-bit Linux
machine and gcc 4.5.3. The strings end up in the file, and nothing hangs or
crashes.
As a random stab in the dark ... is this on a Windows machine? If so, what
is the source of your netcdf and hdf5 dlls? I.e., are you sure they are all
from the same build set and not, say, using the newest version of the netcdf
dll but an older hdf5 dll?
Regards,
--Dave
On Mon, Aug 1, 2011 at 4:32 PM, Paul Ganssle <p.g.anssle@xxxxxxxxx> wrote:
> In preparing to paste a code snippet, I found that this *only* happens if
> I include a string in the file. Here is a test function that I made, as
> well as an example of how I'm calling nc_open and nc_close:
> http://pastebin.com/63HbAWSy
>
> If I comment out either method of putting the string in there, the same
> thing happens, unless I comment out both methods. Variables, arrays and
> groups don't cause the issue.
>
> Here's a raw paste if you don't want to look at pastebin:
>
> // Test function testing strings.
> int rv, ncid;
> if(rv = nc_create(fname, NC_NETCDF4, &ncid))
> goto error; // Error opening file.
>
> char *string = malloc(250);
> sprintf(string, "This is a string.");
> nc_put_att_string(ncid, NC_GLOBAL, "string1", 1, &string);
> char *string2 = "This is also a string";
> nc_put_att_string(ncid, NC_GLOBAL, "string2", 1, &string2);
> free(string);
> nc_close(ncid);
> return rv;
>
> /******* nc_open call: ********/
> // Open the netCDF file.
> if(rv = nc_open(fname, NC_NOWRITE, &ncid))
> goto error;
>
> /******* nc_close call: ********/
> if(ncid >= 0)
> nc_close(ncid);
>
> Note that I can actually read those strings or variables and attributes
> which are arrays of strings just fine. The only thing that causes problems
> is the nc_close(ncid) call, which suspends execution/crashes the program if
> there's a string in the file for some reason.
>
> Now that I know this, it's not such a horrible thing, since I can just
> store those as arrays of chars, but the string type is actually pretty
> convenient, so if anyone has suggestions as to how I can make it deal with
> the fact that strings exist, please let me know.
>
> -Paul
>
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--
David W. Pierce
Division of Climate, Atmospheric Science, and Physical Oceanography
Scripps Institution of Oceanography
(858) 534-8276 (voice) / (858) 534-8561 (fax) dpierce@xxxxxxxx
