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Re: !foo vs foo == nil
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Re: !foo vs foo == nil

  • Subject: Re: !foo vs foo == nil
  • From: "Clark Cox" <email@hidden>
  • Date: Wed, 20 Aug 2008 20:27:25 -0700
On Wed, Aug 20, 2008 at 7:44 PM, mm w <email@hidden> wrote:
> NULL does not have to be 0, 0 could be a valid pointer value

This is not true, the C standard guarantees that 0, converted to any
pointer type is a NULL pointer constant. It is not possible to convert
0 to a non-NULL pointer.

--
Clark S. Cox III
email@hidden
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    • Re: !foo vs foo == nil
      • From: "mm w" <email@hidden>
References: 
 >!foo vs foo == nil (From: Torsten Curdt <email@hidden>)
 >Re: !foo vs foo == nil (From: "mm w" <email@hidden>)
 >Re: !foo vs foo == nil (From: Andrew Merenbach <email@hidden>)
 >Re: !foo vs foo == nil (From: "mm w" <email@hidden>)
 >Re: !foo vs foo == nil (From: "mm w" <email@hidden>)
 >Re: !foo vs foo == nil (From: Quincey Morris <email@hidden>)
 >Re: !foo vs foo == nil (From: "mm w" <email@hidden>)

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