cdf_create: print file name on error

src/cdf_int.c

@@ -71,7 +71,7 @@ void cdf_create(const char *path, int cmode, int *ncidp)
 
   status = nc_set_fill(*ncidp, NC_NOFILL, &oldfill);
 
-  if ( status != NC_NOERR ) Error("%s", nc_strerror(status));
+  if ( status != NC_NOERR ) Error("%s: %s", path, nc_strerror(status));
 }
 
 

src/stream_cdf.c

@@ -689,8 +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;
+
+      if ( xtype == NC_BYTE && missval > 127 && missval < 256 ) 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);