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Programming > C > Re: Two dimensi...
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Re: Two dimensional array Question

by pete <pfiland@[EMAIL PROTECTED] > May 10, 2008 at 12:25 PM

Ben Bacarisse wrote:
> pete <pfiland@[EMAIL PROTECTED]
> writes:
> 
>> Ben Bacarisse wrote:
>>> pete <pfiland@[EMAIL PROTECTED]
> writes:
> <snip>
>>>> But it's better if you realize that
>>>>
>>>>     *p = arr[i];
>>>>
>>>> means the same thing as
>>>>
>>>>     *p = &arr[i][0];
>>> The trouble is this phrase "means the same as".  Both right hand sides
>>> are certainly closely related expressions, but they have different
>>> types, different sizes (sizeof arr[i] != sizeof &arr[i][0]) and they
>>> can't be used in the same places (you can, for example take the
>>> address of one but not of the other).
>> Think harder.
> 
> OK, but you'll have to help me if you think I've missed something.  I
> really do think I get it.
> 
> I know you meant "in most expression contexts"

I didn't mean that.
I meant that given

     int arr[2][13], **p, i;

then

     *p = arr[i];

means exactly the same thing as

     *p = &arr[i][0];


-- 
pete
 




 32 Posts in Topic:
Two dimensional array Question
mdh <mdeh@[EMAIL PROTE  2008-05-08 08:16:13 
Re: Two dimensional array Question
Joe Wright <joewwright  2008-05-08 19:15:37 
Re: Two dimensional array Question
"Default User"   2008-05-08 23:24:55 
Re: Two dimensional array Question
pete <pfiland@[EMAIL P  2008-05-08 21:03:36 
Re: Two dimensional array Question
"Default User"   2008-05-09 16:27:53 
Re: Two dimensional array Question
Ben Bacarisse <ben.use  2008-05-09 00:30:00 
Re: Two dimensional array Question
mdh <mdeh@[EMAIL PROTE  2008-05-08 18:39:27 
Re: Two dimensional array Question
Barry Schwarz <schwarz  2008-05-08 20:54:09 
Re: Two dimensional array Question
mdh <mdeh@[EMAIL PROTE  2008-05-09 06:18:51 
Re: Two dimensional array Question
mdh <mdeh@[EMAIL PROTE  2008-05-09 20:35:22 
Re: Two dimensional array Question
pete <pfiland@[EMAIL P  2008-05-10 07:09:06 
Re: Two dimensional array Question
Ben Bacarisse <ben.use  2008-05-10 12:42:22 
Re: Two dimensional array Question
pete <pfiland@[EMAIL P  2008-05-10 08:43:58 
Re: Two dimensional array Question
Joe Wright <joewwright  2008-05-10 09:26:20 
Re: Two dimensional array Question
Ben Bacarisse <ben.use  2008-05-10 14:53:55 
Re: Two dimensional array Question
pete <pfiland@[EMAIL P  2008-05-10 12:25:49 
Re: Two dimensional array Question
Ben Bacarisse <ben.use  2008-05-10 17:12:46 
Re: Two dimensional array Question
Ben Bacarisse <ben.use  2008-05-11 01:17:26 
Re: Two dimensional array Question
Barry Schwarz <schwarz  2008-05-11 04:17:57 
Re: Two dimensional array Question
mdh <mdeh@[EMAIL PROTE  2008-05-11 19:07:45 
Re: Two dimensional array Question
Richard Heathfield <rj  2008-05-12 03:16:04 
Re: Two dimensional array Question
Richard Heathfield <rj  2008-05-12 03:17:11 
Re: Two dimensional array Question
pete <pfiland@[EMAIL P  2008-05-12 07:18:50 
Re: Two dimensional array Question
"Default User"   2008-05-12 06:19:46 
Re: Two dimensional array Question
mdh <mdeh@[EMAIL PROTE  2008-05-12 21:12:17 
Re: Two dimensional array Question
Richard Heathfield <rj  2008-05-13 04:48:22 
Re: Two dimensional array Question
Chris Torek <nospam@[E  2008-05-13 16:38:01 
Re: Two dimensional array Question
Richard Heathfield <rj  2008-05-13 16:53:43 
Re: Two dimensional array Question
mdh <mdeh@[EMAIL PROTE  2008-05-12 21:13:55 
Re: Two dimensional array Question
pete <pfiland@[EMAIL P  2008-05-16 22:17:14 
Re: Two dimensional array Question
mdh <mdeh@[EMAIL PROTE  2008-05-12 22:26:08 
Re: Two dimensional array Question
Barry Schwarz <schwarz  2008-05-16 18:44:29 

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tan12V112 Wed Jul 9 1:28:01 CDT 2008.