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Re: New C++ warning about comparing this==NULL
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Re: New C++ warning about comparing this==NULL

  • Subject: Re: New C++ warning about comparing this==NULL
  • From: David Brittain <email@hidden>
  • Date: Thu, 03 Dec 2015 19:06:49 -0800
This is the issue that led to the warnings being added...

https://llvm.org/bugs/show_bug.cgi?id=19899

Which would seem to confirm that interpretation. The comment re. this pointer warning was by the c++ spec editor

On 3 December 2015 at 11:08, Doug Hill <email@hidden> wrote:

My understanding is that a method call on a pointer is a dereference due
to this:

"If E1 has the type “pointer to class X,” then the _expression_ E1->E2 is
converted to the equivalent form (*(E1)).E2"

It would appear that the * operator is part of the spec's definition.

Dou


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References: 
 >New C++ warning about comparing this==NULL (From: Jens Alfke <email@hidden>)
 >Re: New C++ warning about comparing this==NULL (From: Jonathan Prescott <email@hidden>)
 >Re: New C++ warning about comparing this==NULL (From: Jens Alfke <email@hidden>)
 >Re: New C++ warning about comparing this==NULL (From: Doug Hill <email@hidden>)
 >Re: New C++ warning about comparing this==NULL (From: Roland King <email@hidden>)
 >Re: New C++ warning about comparing this==NULL (From: Doug Hill <email@hidden>)
 >Re: New C++ warning about comparing this==NULL (From: Jens Alfke <email@hidden>)
 >Re: New C++ warning about comparing this==NULL (From: Clark Cox <email@hidden>)
 >Re: New C++ warning about comparing this==NULL (From: Jens Alfke <email@hidden>)
 >Re: New C++ warning about comparing this==NULL (From: Doug Hill <email@hidden>)

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