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Re: Remving an element from Queue

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Am 16.05.2012 05:38, schrieb Barry Schwarz:
> That is not what the standard says - "The calloc function allocates
> space for an array of nmemb objects, each of whose size is size. The
> space is initialized to all bits zero."  Note the additional
> requirement that the entire allocated space be considered a single
> array.  size_t must be able to hold the size in bytes of the largest
> possible object, including aggregates such as arrays.  When a*b is
> mathematically larger then SIZE_MAX, a "successful" call to calloc
> would violate this requirement.  Therefore, calloc should be required
> to return NULL in this case, which is what I said in the part you
> snipped.

I can't find any text in the standard about size_t that requires
this. The only requirement is that the type must be able to hold the
value of the sizeof operator. This restricts the possible size only
for objects to which that operator applies, in particular it
constrains the possible size of VLA (as a function of the size of the
base type).

But since objects allocated by the "alloc" family of functions are not
subject to the sizeof operator, this restriction doesn't seem to
apply. To me, the only implicit bound for calloc seems to be

 (SIZE_MAX + 1)*(SIZE_MAX + 1)-1

Jens

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Remving an element from Queue arnuld <sunrise@invalid.address> - 2012-05-08 08:09 +0000
  Re: Remving an element from Queue Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-05-08 08:01 -0400
    Re: Remving an element from Queue arnuld <sunrise@invalid.address> - 2012-05-09 05:43 +0000
      Re: Remving an element from Queue Barry Schwarz <schwarzb@dqel.com> - 2012-05-08 23:21 -0700
        Re: Remving an element from Queue arnuld <sunrise@invalid.address> - 2012-05-09 09:27 +0000
          Re: Remving an element from Queue James Kuyper <jameskuyper@verizon.net> - 2012-05-09 07:54 -0400
        Re: Remving an element from Queue arnuld <sunrise@invalid.address> - 2012-05-09 13:18 +0000
          Re: Remving an element from Queue Barry Schwarz <schwarzb@dqel.com> - 2012-05-09 10:59 -0700
            Re: Remving an element from Queue arnuld <arnuld.mizong@gmail.com> - 2012-05-10 05:26 -0700
              Re: Remving an element from Queue nick_keighley_nospam@hotmail.com - 2012-05-11 00:11 -0700
              Re: Remving an element from Queue Barry Schwarz <schwarzb@dqel.com> - 2012-05-14 15:53 -0700
                Re: Remving an element from Queue lawrence.jones@siemens.com - 2012-05-15 17:42 -0400
                Re: Remving an element from Queue Barry Schwarz <schwarzb@dqel.com> - 2012-05-15 16:40 -0700
                Re: Remving an element from Queue James Kuyper <jameskuyper@verizon.net> - 2012-05-15 23:03 -0400
                Re: Remving an element from Queue Barry Schwarz <schwarzb@dqel.com> - 2012-05-15 20:38 -0700
                Re: Remving an element from Queue Jens Gustedt <jens.gustedt@loria.fr> - 2012-05-16 08:09 +0200
                Re: Remving an element from Queue James Kuyper <jameskuyper@verizon.net> - 2012-05-16 07:18 -0400
                Re: Remving an element from Queue Barry Schwarz <schwarzb@dqel.com> - 2012-05-16 16:30 -0700
                Re: Remving an element from Queue James Kuyper <jameskuyper@verizon.net> - 2012-05-17 09:09 -0400
                Re: Remving an element from Queue Barry Schwarz <schwarzb@dqel.com> - 2012-05-17 11:48 -0700
                Re: Removing an element from Queue James Kuyper <jameskuyper@verizon.net> - 2012-05-17 15:38 -0400
                Re: Removing an element from Queue Barry Schwarz <schwarzb@dqel.com> - 2012-05-17 15:21 -0700
                Re: Removing an element from Queue James Kuyper <jameskuyper@verizon.net> - 2012-05-17 19:08 -0400
                Re: Removing an element from Queue Tim Rentsch <txr@alumni.caltech.edu> - 2012-05-19 09:05 -0700
                Re: Removing an element from Queue lawrence.jones@siemens.com - 2012-05-20 15:10 -0400
                Re: Removing an element from Queue Tim Rentsch <txr@alumni.caltech.edu> - 2012-05-21 09:00 -0700
                Re: Remving an element from Queue Tim Rentsch <txr@alumni.caltech.edu> - 2012-05-19 08:49 -0700
                Re: Remving an element from Queue Tim Rentsch <txr@alumni.caltech.edu> - 2012-05-17 12:36 -0700
  Re: Remving an element from Queue nick_keighley_nospam@hotmail.com - 2012-05-08 05:09 -0700
    Re: Remving an element from Queue "BartC" <bc@freeuk.com> - 2012-05-08 14:03 +0100
      Re: Remving an element from Queue nick_keighley_nospam@hotmail.com - 2012-05-09 00:01 -0700
      Re: Remving an element from Queue nick_keighley_nospam@hotmail.com - 2012-05-09 00:03 -0700
        Re: Remving an element from Queue "BartC" <bc@freeuk.com> - 2012-05-09 10:37 +0100
          Re: Remving an element from Queue nick_keighley_nospam@hotmail.com - 2012-05-09 03:05 -0700
    Re: Remving an element from Queue arnuld <sunrise@invalid.address> - 2012-05-09 09:44 +0000
  Re: Remving an element from Queue Mark Bluemel <mark.bluemel@googlemail.com> - 2012-05-08 06:07 -0700
  Re: Remving an element from Queue Mark Bluemel <mark.bluemel@googlemail.com> - 2012-05-08 06:35 -0700
  Re: Remving an element from Queue Johann Klammer <klammerj@NOSPAM.a1.net> - 2012-05-08 20:50 +0200
  Re: Remving an element from Queue 88888 Dihedral <dihedral88888@googlemail.com> - 2012-05-11 00:39 -0700

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