Yes , you are right --- Seth Arnold <sarnold@wirex.com> wrote: > On Mon, Oct 28, 2002 at 04:54:26AM +0000, Dharmender > Rai wrote: > > const char * some_ptr; > > // is same as > > char * const some_ptr; > > // You can think in this way: > > /* In the later one, const is used for some_ptr > that > > is a pointer to char. So here the pointer is > constant. > > In the former case also you have made ( char *) as > > constant :). So they are the same > > */ > > No. > > Quoting from Peter van der Linden's book Expert C > Programming, page 66: > A declaration involving a pointer and a const has > several possible > orderings: > const int * grape; > int const * grape; > int * const grape_jelly; > > The last of these cases makes the pointer > read-only, whereas the other > two make the object that it points at read-only; > and of course, both > the object and what it points at might be > constant. Either of the > following equivalent declarations will accomplish > this: > const int * const grape_jam; > int const * const grape_jam; > > Quoting further, on page 74: > If a const and/or volatile keyword is next to a > type specifier (e.g., > int, long, etc.) it applies to the type specifier. > Otherwise the const > and/or volatile keyword applies to the pointer > asterisk on its > immediate left. > > > Much as Christine recommends Linux Device Drivers, > 2nd edition (a good > book! :) I heartily recommend van der Linden's > Expert C Programming. > ISBN 0-13-177429. Best $40 I've spent. Sure, it has > a horribly ugly > orange cover, but that just helps you find the book > in the pile next to > your bed late at night when your eyes are getting > blurry and you know > you should be asleep but some silly C question is > driving you out of > your mind. > > -- > "There's an old saying in Tennessee, i know it's in > Texas, probably in > Tennessee, that says, 'Fool me once... shame on ... > shame on .. you; but > fool--you can't get fooled again.'" -- Commander in > Chief of the US Military > > ATTACHMENT part 2 application/pgp-signature __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
