cdfDefVarMissval: changed xtype from NC_BYTE to NC_INT for missvals > 127

ChangeLog

@@ -4,6 +4,7 @@
 
 2013-06-06  Uwe Schulzweida  <Uwe.Schulzweida@zmaw.de>
 
+	* cdfDefVarMissval: changed xtype from NC_BYTE to NC_INT for missvals > 127 (workaround for a netCDF bug)
 	* use 'number_of_grid_used' only for undefined grid types
 
 2013-06-03  Uwe Schulzweida  <Uwe.Schulzweida@zmaw.de>

src/stream_cdf.c

@@ -689,6 +689,8 @@ void cdfDefVarMissval(stream_t *streamptr, int varID, int dtype, int lcheck)
       if ( lcheck && streamptr->ncmode == 2 ) cdf_redef(fileID);
 
       xtype = cdfDefDatatype(dtype, streamptr->filetype);
+      /* workaround for a netCDF bug? */
+      if ( xtype == NC_BYTE && missval > 127 ) xtype = NC_INT;
 
       cdf_put_att_double(fileID, ncvarid, "_FillValue", (nc_type) xtype, 1, &missval);
       cdf_put_att_double(fileID, ncvarid, "missing_value", (nc_type) xtype, 1, &missval);