Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > comp.lang.c > #163267
| From | Bart <bc@freeuk.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: on confusing procedure names with the address of procedures |
| Date | 2021-10-30 11:36 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <slj77j$ufg$1@dont-email.me> (permalink) |
| References | <86bl37e49v.fsf@levado.to> |
On 30/10/2021 01:37, Meredith Montgomery wrote:
> 12 | printf("c1 is at %p\n", &&c1);
&& is used for label address with some C implementations. Label c1
doesn't exist. (Variable c1 does, but in C, variables and labels live in
different namespaces; the same names can coexist).
> printf("main is at %p\n", main);
> printf("main is at %p\n", &main);
> }
If you have a function F, then:
F() Calls the function
F Yields its address
&F Yields its address
So F and &F do the same thing. In effect, the first line could also be
written as:
(&F)() Calls the function
Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
on confusing procedure names with the address of procedures Meredith Montgomery <mmontgomery@levado.to> - 2021-10-29 21:37 -0300
Re: on confusing procedure names with the address of procedures Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-29 18:29 -0700
Re: on confusing procedure names with the address of procedures Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-10-29 18:33 -0700
Re: on confusing procedure names with the address of procedures Manfred <noname@add.invalid> - 2021-10-30 05:32 +0200
Re: on confusing procedure names with the address of procedures James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-30 01:26 -0400
Re: on confusing procedure names with the address of procedures Manfred <noname@add.invalid> - 2021-10-30 19:05 +0200
Re: on confusing procedure names with the address of procedures James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-30 15:17 -0400
Re: on confusing procedure names with the address of procedures Bart <bc@freeuk.com> - 2021-10-30 11:36 +0100
Re: on confusing procedure names with the address of procedures Noob <root@127.0.0.1> - 2021-11-01 13:03 +0100
csiph-web