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Re: Can function pointers be compared for equality

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Malcolm McLean <malcolm.mclean5@btinternet.com> writes:

> On Jan 23, 1:54 pm, "V.Subramanian, India"
> <subramanian10...@yahoo.com> wrote:
>>
>> Is this equality comparison check of function pointers, legal, correct
>> and allowed ? (Note that it works in my implementation of gcc. But I
>> do not want to go by one particular implementation).
>>
>> Please explain.
>>
> You can compare function ponters for equality. However you can't
> compare for inequality.  [...]

In C, != is the inequality operator.  You can compare function
pointers with !=.  You cannot compare them with the relational
operators < > <= >=.
-- 
"This is a wonderful answer.
 It's off-topic, it's incorrect, and it doesn't answer the question."
--Richard Heathfield

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Can function pointers be compared for equality "V.Subramanian, India" <subramanian100in@yahoo.com> - 2012-01-23 05:54 -0800
  Re: Can function pointers be compared for equality Malcolm McLean <malcolm.mclean5@btinternet.com> - 2012-01-23 07:00 -0800
    Re: Can function pointers be compared for equality blp@cs.stanford.edu (Ben Pfaff) - 2012-01-23 07:46 -0800
      Re: Can function pointers be compared for equality Kaz Kylheku <kaz@kylheku.com> - 2012-01-23 20:06 +0000
        Re: Can function pointers be compared for equality ec429 <ec429@cam.ac.uk> - 2012-01-23 20:42 +0000
          Re: Can function pointers be compared for equality James Kuyper <jameskuyper@verizon.net> - 2012-01-23 16:04 -0500
            Re: Can function pointers be compared for equality Ian Collins <ian-news@hotmail.com> - 2012-01-24 10:24 +1300
              Re: Can function pointers be compared for equality James Kuyper <jameskuyper@verizon.net> - 2012-01-23 16:48 -0500
              Re: Can function pointers be compared for equality Nick Keighley <nick_keighley_nospam@hotmail.com> - 2012-01-24 03:04 -0800
                Re: Can function pointers be compared for equality gwowen <gwowen@gmail.com> - 2012-01-24 03:37 -0800
            Re: Can function pointers be compared for equality Kleuske <kleuske@nowhere.net> - 2012-01-23 21:39 +0000
            Re: Can function pointers be compared for equality gwowen <gwowen@gmail.com> - 2012-01-24 03:31 -0800
              Re: Can function pointers be compared for equality ec429 <ec429@cam.ac.uk> - 2012-01-24 13:16 +0000
          Re: Can function pointers be compared for equality Kaz Kylheku <kaz@kylheku.com> - 2012-01-23 22:11 +0000
            Re: Can function pointers be compared for equality Ian Collins <ian-news@hotmail.com> - 2012-01-24 11:34 +1300
    Re: Can function pointers be compared for equality Ben Bacarisse <ben.usenet@bsb.me.uk> - 2012-01-23 16:37 +0000
    Re: Can function pointers be compared for equality Keith Thompson <kst-u@mib.org> - 2012-01-23 09:11 -0800
      Re: Can function pointers be compared for equality pete <pfiland@mindspring.com> - 2012-01-23 20:06 -0500
        Re: Can function pointers be compared for equality Keith Thompson <kst-u@mib.org> - 2012-01-23 17:45 -0800
          Re: Can function pointers be compared for equality Kaz Kylheku <kaz@kylheku.com> - 2012-01-24 03:48 +0000
            Re: Can function pointers be compared for equality James Kuyper <jameskuyper@verizon.net> - 2012-01-23 22:59 -0500
              Re: Can function pointers be compared for equality Kaz Kylheku <kaz@kylheku.com> - 2012-01-24 04:22 +0000
                Re: Can function pointers be compared for equality Nick Keighley <nick_keighley_nospam@hotmail.com> - 2012-01-24 03:07 -0800
                Re: Can function pointers be compared for equality Kleuske <kleuske@nowhere.net> - 2012-01-24 11:16 +0000

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