On Sun, 13 Feb 2011 13:20:58 +0100 "Julian H. Stacey" <j...@berklix.com> wrote: > Hi Hackers > Ref.: man 3 getopt > int getopt(int argc, char * const argv[], const char *optstring); > > Ref.: K&R 2nd Ed P.211 last indent, 2nd sentence > The purpose of const is to announce objjects that may be > placed in read-only memory, and perhaps to increas opportunities > for optimization > > optstring is obviously const, > but I don't see that argv can calim to be const ? > > Did some ISO standard redefine const ? If so URL please ? > (I learnt my C from K&R #1 decades ago :-)
Not quite what you asked for but this may help in making sense of const.... $ cdecl # from /usr/ports/devel/cdecl explain const char* x declare x as pointer to const char explain char * const x declare x as const pointer to char _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
