Re: pointers and pointing

From	Richard <rgrdev_@gmail.com>
Newsgroups	comp.lang.c
Subject	Re: pointers and pointing
Date	2014-04-23 00:05 +0100
Organization	http://www.ieee.org/
Message-ID	<87ppk9m0ct.fsf@gmail.com> (permalink)
References	(2 earlier) <lj45rt$cca$1@dont-email.me> <mtpbl9t2ahpbmc14ipu0i2a0uu91dvgbdq@4ax.com> <lj5ran$hea$1@dont-email.me> <lj5up1$bfj$1@dont-email.me> <lj6b9d$dn1$1@dont-email.me>

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"Bill Cunningham" <nospam@nspam.invalid> writes:

> Ken Brody wrote:
>> On 4/22/2014 9:37 AM, Bill Cunningham wrote:
>> [...]
>>> int *p;
>>>
>>> Ok when do I use p and when do I use *p. That right now I am working
>>> on.
>>
>> If "p" is a pointer, you use "p" when you want the pointer, and "*p"
>> when you want what it points to.  (And you use "&p" when you want to
>> point to the pointer.)
>
>     I understood that much. But I think some of the problem with this here 
> is documentation for certain functions. Docs don't always do well in 
> explaining what a function wants. Seeing a parameter wants a generic pointer 
> can mean it wants p or *p or &p. Just depending on the function of the 

What functions want a "*p" Bill?

LOL.

0/10


> function. And with a parameter that says void * makes things even worse 
> because it is written to take any type. I am speaking of getaddrinfo() in 
> particularly. It deals with struct addrinfo type.
>
>     WIth this one mentioned above, you better understand what this function 
> is all about.
>
> Bill
>

-- 
"Avoid hyperbole at all costs, its the most destructive argument on
the planet" - Mark McIntyre in comp.lang.c

Thread

pointers and pointing "Bill Cunningham" <nospam@nspam.invalid> - 2014-04-21 13:57 -0400
  Re: pointers and pointing Barry Schwarz <schwarzb@dqel.com> - 2014-04-21 11:58 -0700
    Re: pointers and pointing "Bill Cunningham" <nospam@nspam.invalid> - 2014-04-21 15:09 -0400
      Re: pointers and pointing buja <buja66@gmail.com> - 2014-04-21 12:44 -0700
    Re: pointers and pointing gazelle@shell.xmission.com (Kenny McCormack) - 2014-04-21 20:28 +0000
      Re: pointers and pointing "Osmium" <r124c4u102@comcast.net> - 2014-04-21 15:43 -0500
        Re: pointers and pointing Ken Brody <kenbrody@spamcop.net> - 2014-04-22 10:28 -0400
      Re: pointers and pointing ralph <nt_consulting@yahoo.com> - 2014-04-21 16:25 -0500
      Re: pointers and pointing Barry Schwarz <schwarzb@dqel.com> - 2014-04-21 15:14 -0700
        Re: pointers and pointing James Kuyper <jameskuyper@verizon.net> - 2014-04-21 18:41 -0400
          Re: pointers and pointing gazelle@shell.xmission.com (Kenny McCormack) - 2014-04-21 22:48 +0000
      Re: pointers and pointing jacob navia <jacob@spamsink.net> - 2014-04-22 00:22 +0200
    Re: pointers and pointing "Bill Cunningham" <nospam@nspam.invalid> - 2014-04-21 18:25 -0400
      Re: pointers and pointing Barry Schwarz <schwarzb@dqel.com> - 2014-04-21 20:56 -0700
        Re: pointers and pointing glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-22 05:51 +0000
          Re: pointers and pointing James Kuyper <jameskuyper@verizon.net> - 2014-04-22 07:38 -0400
        Re: pointers and pointing David Brown <david.brown@hesbynett.no> - 2014-04-22 09:16 +0200
        Re: pointers and pointing "Bill Cunningham" <nospam@nspam.invalid> - 2014-04-22 09:37 -0400
          Re: pointers and pointing Richard <rgrdev_@gmail.com> - 2014-04-22 15:00 +0100
          Re: pointers and pointing Ken Brody <kenbrody@spamcop.net> - 2014-04-22 10:36 -0400
            Re: pointers and pointing "Bill Cunningham" <nospam@nspam.invalid> - 2014-04-22 14:09 -0400
              Re: pointers and pointing Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-04-22 22:40 +0100
              Re: pointers and pointing Richard <rgrdev_@gmail.com> - 2014-04-23 00:05 +0100
              Re: pointers and pointing Barry Schwarz <schwarzb@dqel.com> - 2014-04-22 16:08 -0700
                Re: pointers and pointing "Bill Cunningham" <nospam@nspam.invalid> - 2014-04-23 22:19 -0400
            Re: pointers and pointing "Bill Cunningham" <nospam@nspam.invalid> - 2014-04-22 14:22 -0400
            Re: pointers and pointing "Bill Cunningham" <nospam@nspam.invalid> - 2014-04-22 14:24 -0400
              Re: pointers and pointing buja <buja66@gmail.com> - 2014-04-22 13:12 -0700

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