Hi, Micah Cowan wrote: > How best do I determine in my code whether I'm using gnulib's > getopt_long, or the system library (potentially glibc)'s? That is, I > want to know whether I ought to be passing in a char ** or a > char*const*, whilst avoiding warnings and the like.
I would pass a 'char **': an implicit cast from 'char **' to 'char *const*' does not cause a warning. If you want to use 'char *const*', then not only you need a cast, but also I would put a comment before the getopt_long invocation saying that the use of 'const' here is justified only because the OPTS start with a '+' flag. Bruno
