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| From | Richard Heathfield <rjh@cpax.org.uk> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: *&aptr , &*aptr question |
| Date | 2016-06-14 22:01 +0100 |
| Organization | Origin Sonata |
| Message-ID | <njprap$3e5$1@dont-email.me> (permalink) |
| References | <9e50cd7d-da7b-4f90-9c83-57799cd07ad6@googlegroups.com> |
On 14/06/16 21:43, G G wrote: <snip> > int a; > int *aPtr; > > a = 7; > aPtr = &a; > > let's say the address is of a 0028FEC0 > > so the address is of a is 0028FEC0 > the value of aPtr is 0028FEC0 > > how does &*aPtr resolve? aPtr is a pointer to a. *aPtr is the value of the thing pointed to by aPtr, so it's the value of a, so it's 7. &*aPtr is an error. You can't take the address of 7. > how does *&aPtr resolve? aPtr is a pointer to int. &aPtr is a pointer to pointer to int, which points at aPtr. *&aPtr is the value of the object pointed to by the pointer to pointer to int, i.e. the value of aPtr. (That one's fine - no error.) -- Richard Heathfield Email: rjh at cpax dot org dot uk "Usenet is a strange place" - dmr 29 July 1999 Sig line 4 vacant - apply within
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*&aptr , &*aptr question G G <gdotone@gmail.com> - 2016-06-14 13:43 -0700
Re: *&aptr , &*aptr question Richard Heathfield <rjh@cpax.org.uk> - 2016-06-14 22:01 +0100
Re: *&aptr , &*aptr question Ike Naar <ike@iceland.freeshell.org> - 2016-06-14 21:20 +0000
Re: *&aptr , &*aptr question G G <gdotone@gmail.com> - 2016-06-14 14:38 -0700
Re: *&aptr , &*aptr question Richard Heathfield <rjh@cpax.org.uk> - 2016-06-14 22:42 +0100
Re: *&aptr , &*aptr question Ken Brody <kenbrody@spamcop.net> - 2016-06-15 14:22 -0400
Re: *&aptr , &*aptr question Richard Heathfield <rjh@cpax.org.uk> - 2016-06-15 19:24 +0100
Re: *&aptr , &*aptr question "James R. Kuyper" <jameskuyper@verizon.net> - 2016-06-14 17:17 -0400
Re: *&aptr , &*aptr question Keith Thompson <kst-u@mib.org> - 2016-06-14 14:37 -0700
Re: *&aptr , &*aptr question "James R. Kuyper" <jameskuyper@verizon.net> - 2016-06-14 17:40 -0400
Re: *&aptr , &*aptr question "James R. Kuyper" <jameskuyper@verizon.net> - 2016-06-14 17:49 -0400
Re: *&aptr , &*aptr question BartC <bc@freeuk.com> - 2016-06-14 22:57 +0100
Re: *&aptr , &*aptr question jameskuyper@verizon.net - 2016-06-14 15:22 -0700
Re: *&aptr , &*aptr question "James R. Kuyper" <jameskuyper@verizon.net> - 2016-06-14 18:40 -0400
Re: *&aptr , &*aptr question BartC <bc@freeuk.com> - 2016-06-14 23:44 +0100
Re: *&aptr , &*aptr question BartC <bc@freeuk.com> - 2016-06-14 23:54 +0100
Re: *&aptr , &*aptr question Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-06-15 00:14 +0100
Re: *&aptr , &*aptr question Keith Thompson <kst-u@mib.org> - 2016-06-14 16:51 -0700
Re: *&aptr , &*aptr question BartC <bc@freeuk.com> - 2016-06-15 01:15 +0100
Re: *&aptr , &*aptr question Keith Thompson <kst-u@mib.org> - 2016-06-14 17:44 -0700
Re: *&aptr , &*aptr question David Brown <david.brown@hesbynett.no> - 2016-06-15 09:12 +0200
Re: *&aptr , &*aptr question Richard Heathfield <rjh@cpax.org.uk> - 2016-06-15 08:28 +0100
Re: *&aptr , &*aptr question David Brown <david.brown@hesbynett.no> - 2016-06-15 10:26 +0200
Re: *&aptr , &*aptr question Richard Heathfield <rjh@cpax.org.uk> - 2016-06-15 09:48 +0100
Re: *&aptr , &*aptr question BartC <bc@freeuk.com> - 2016-06-15 11:05 +0100
Re: *&aptr , &*aptr question David Brown <david.brown@hesbynett.no> - 2016-06-15 12:22 +0200
Re: *&aptr , &*aptr question Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-06-15 03:55 -0700
Re: *&aptr , &*aptr question David Brown <david.brown@hesbynett.no> - 2016-06-15 13:15 +0200
Re: *&aptr , &*aptr question BartC <bc@freeuk.com> - 2016-06-15 13:08 +0100
Re: *&aptr , &*aptr question David Brown <david.brown@hesbynett.no> - 2016-06-15 14:15 +0200
Re: *&aptr , &*aptr question BartC <bc@freeuk.com> - 2016-06-15 14:02 +0100
Re: *&aptr , &*aptr question Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-06-15 13:38 -0700
Re: *&aptr , &*aptr question David Brown <david.brown@hesbynett.no> - 2016-06-16 00:01 +0200
Re: *&aptr , &*aptr question Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-06-16 00:58 -0700
Re: *&aptr , &*aptr question supercat@casperkitty.com - 2016-06-15 09:06 -0700
Re: *&aptr , &*aptr question BartC <bc@freeuk.com> - 2016-06-15 17:54 +0100
Re: *&aptr , &*aptr question raltbos@xs4all.nl (Richard Bos) - 2016-06-15 20:10 +0000
Re: *&aptr , &*aptr question supercat@casperkitty.com - 2016-06-14 16:28 -0700
Re: *&aptr , &*aptr question Keith Thompson <kst-u@mib.org> - 2016-06-14 16:54 -0700
Re: *&aptr , &*aptr question supercat@casperkitty.com - 2016-06-14 19:13 -0700
Re: *&aptr , &*aptr question Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-06-15 13:19 +0100
Re: *&aptr , &*aptr question Tim Rentsch <txr@alumni.caltech.edu> - 2016-06-16 10:39 -0700
Re: *&aptr , &*aptr question supercat@casperkitty.com - 2016-06-16 12:06 -0700
Re: *&aptr , &*aptr question Tim Rentsch <txr@alumni.caltech.edu> - 2016-06-21 12:21 -0700
Re: *&aptr , &*aptr question Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-06-16 21:06 +0100
Re: *&aptr , &*aptr question supercat@casperkitty.com - 2016-06-16 14:35 -0700
Re: *&aptr , &*aptr question Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-06-17 01:22 +0100
Re: *&aptr , &*aptr question Tim Rentsch <txr@alumni.caltech.edu> - 2016-06-16 22:21 -0700
Re: *&aptr , &*aptr question Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-06-18 00:55 +0100
Re: *&aptr , &*aptr question supercat@casperkitty.com - 2016-06-17 17:26 -0700
Re: *&aptr , &*aptr question Tim Rentsch <txr@alumni.caltech.edu> - 2016-06-21 12:19 -0700
Re: *&aptr , &*aptr question supercat@casperkitty.com - 2016-06-21 13:09 -0700
Re: *&aptr , &*aptr question Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-06-14 22:30 -0400
Re: *&aptr , &*aptr question Tim Rentsch <txr@alumni.caltech.edu> - 2016-06-15 14:20 -0700
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