Format
isloc(Loc1, Loc2 ...)
Args
Any number of locations to test.
Returns
1 if all args are valid locs; 0 otherwise.
Tests validity of a location. If all arguments are mobs, objs, turfs, or areas, this returns 1.
For a single argument this is equivalent to: (ismob(Loc) || isobj(Loc) || isturf(Loc) || isarea(Loc)).