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Groups > comp.lang.c > #16652

Re: Pointer Equality for Different Array Objects

From Kaz Kylheku <kaz@kylheku.com>
Newsgroups comp.lang.c
Subject Re: Pointer Equality for Different Array Objects
Date 2012-02-03 02:36 +0000
Organization A noiseless patient Spider
Message-ID <20120202183535.795@kylheku.com> (permalink)
References <jgfa2r$h8h$1@dont-email.me> <20120202163655.24@kylheku.com> <jgfcn5$t4p$1@dont-email.me> <4F2B3C21.36AE@mindspring.com>

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On 2012-02-03, pete <pfiland@mindspring.com> wrote:
> Shao Miller wrote:
>> 
>> On 2/2/2012 19:47, Kaz Kylheku wrote:
>
>> > They are not distinct objects
>> > because they are overlapped in a union.
>> >
>> 
>> If they are not distinct objects,
>> then they are the same object, right?
>> Well what type is the object?  
>
> N1570
> 6.3.2.1 Lvalues, arrays, and function designators
> 1
>     When an object is said to have a particular type,
>     the type is specified by the lvalue used to designate the object.

This is a simplification if taken by itself. Some objects have a declared
type, and if you form some other lvalue to access them, you're in
undefined behavior land.

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Thread

Pointer Equality for Different Array Objects Shao Miller <sha0.miller@gmail.com> - 2012-02-02 19:34 -0500
  Re: Pointer Equality for Different Array Objects Shao Miller <sha0.miller@gmail.com> - 2012-02-02 19:40 -0500
  Re: Pointer Equality for Different Array Objects Kaz Kylheku <kaz@kylheku.com> - 2012-02-03 00:47 +0000
    Re: Pointer Equality for Different Array Objects Shao Miller <sha0.miller@gmail.com> - 2012-02-02 20:19 -0500
      Re: Pointer Equality for Different Array Objects pete <pfiland@mindspring.com> - 2012-02-02 20:45 -0500
        Re: Pointer Equality for Different Array Objects Shao Miller <sha0.miller@gmail.com> - 2012-02-02 21:15 -0500
        Re: Pointer Equality for Different Array Objects Kaz Kylheku <kaz@kylheku.com> - 2012-02-03 02:36 +0000
      Re: Pointer Equality for Different Array Objects Kaz Kylheku <kaz@kylheku.com> - 2012-02-03 02:35 +0000
        Re: Pointer Equality for Different Array Objects Shao Miller <sha0.miller@gmail.com> - 2012-02-03 01:27 -0500
          Re: Pointer Equality for Different Array Objects Shao Miller <sha0.miller@gmail.com> - 2012-02-03 01:29 -0500
          Re: Pointer Equality for Different Array Objects Kaz Kylheku <kaz@kylheku.com> - 2012-02-03 07:11 +0000
            Re: Pointer Equality for Different Array Objects Shao Miller <sha0.miller@gmail.com> - 2012-02-03 19:31 -0500
  Re: Pointer Equality for Different Array Objects Shao Miller <sha0.miller@gmail.com> - 2012-02-06 02:25 -0500

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