Dylan Beaudette wrote: > Here is what I get:
> #5 0xb7f799db in Rast_get_cellhd (name=0x0, mapset=0x804c228 "PERMANENT", > cellhd=0xbffff198) at get_cellhd.c:62 name=0x0 means that the first argument to Rast_get_cellhd() (i.e. the map name) is a null pointer. I suspect that this is because the LOS_map= option wasn't specified. Although this option is marked as "required = NO", the code assumes that it will be set (and generates a fatal error if the specified map cannot be found). I would expect similar behaviour with the original, unmodified code. [Also, note that 7.0 doesn't allow the use of upper-case letters in option names. Specifically, it won't recognise a name=value argument as an option if the name part contains upper-case letters.] If an option is always required, the ->required field in the option structure should be set to YES (this is done automatically for G_define_standard_option(G_OPT_R_INPUT)). If an option isn't required, either it should have a default value (i.e. the ->answer field should be set when defining the option) or the code should explicitly check whether ->answer is null before attempting to use its value. -- Glynn Clements <[email protected]> _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
