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Re: malloc

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Joachim Schmitz wrote:
> 
> Noob wrote:
> > Eric Sosman wrote:
> >
> >>      The only allocator bug I have personally encountered was with
> >> a malloc() implementation that never, never returned NULL.  When it
> >> ought to have returned NULL, it crashed the program instead ...
> >
> > Visual Studio 6 used to crash on free(NULL).
> 
> Which seems OK, of malloc() never returns NULL.
> free() only needs to take what malloc() gives, doesn't it?

No. 
The standard says:
    void free(void *ptr);    
    If ptr is a null pointer, no action occurs.

-- 
pete

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malloc jgk@panix.com (Joe keane) - 2012-02-16 21:04 +0000
  Re: malloc Devil with the China Blue Dress <chine.bleu@yahoo.com> - 2012-02-16 13:21 -0800
    Re: malloc BGB <cr88192@hotmail.com> - 2012-02-16 16:16 -0700
      Re: malloc Paavo Helde <myfirstname@osa.pri.ee> - 2012-02-17 14:46 -0600
        Re: malloc Joshua Maurice <joshuamaurice@gmail.com> - 2012-02-17 14:51 -0800
          Re: malloc BGB <cr88192@hotmail.com> - 2012-02-17 19:58 -0700
            Re: malloc Paavo Helde <myfirstname@osa.pri.ee> - 2012-02-18 02:18 -0600
              Re: malloc BGB <cr88192@hotmail.com> - 2012-02-18 01:58 -0700
              Re: malloc glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-02-18 15:30 +0000
            Re: malloc Kaz Kylheku <kaz@kylheku.com> - 2012-02-18 10:36 +0000
              Re: malloc BGB <cr88192@hotmail.com> - 2012-02-18 10:53 -0700
            Re: malloc William Ahern <william@wilbur.25thandClement.com> - 2012-02-18 16:43 -0800
              Re: malloc BGB <cr88192@hotmail.com> - 2012-02-18 20:03 -0700
                Re: malloc Miles Bader <miles@gnu.org> - 2012-02-19 12:49 +0900
                Re: malloc William Ahern <william@wilbur.25thandClement.com> - 2012-02-18 21:08 -0800
                Re: malloc "io_x" <a@b.c.invalid> - 2012-02-19 18:23 +0100
                Re: malloc William Ahern <william@wilbur.25thandClement.com> - 2012-02-18 21:06 -0800
                Re: malloc BGB <cr88192@hotmail.com> - 2012-02-18 23:06 -0700
      Re: malloc "Asger Joergensen" <Junk@Asger-P.dk> - 2012-02-19 15:54 +0000
        Re: malloc BGB <cr88192@hotmail.com> - 2012-02-19 09:37 -0700
    Re: malloc Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-02-16 20:27 -0500
      Re: malloc Goran <goran.pusic@gmail.com> - 2012-02-16 23:40 -0800
        Re: malloc Keith Thompson <kst-u@mib.org> - 2012-02-17 02:26 -0800
          Re: malloc Goran <goran.pusic@gmail.com> - 2012-02-17 04:01 -0800
            Re: malloc Keith Thompson <kst-u@mib.org> - 2012-02-17 09:25 -0800
              Re: malloc Joshua Maurice <joshuamaurice@gmail.com> - 2012-02-17 14:49 -0800
                Re: malloc glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-02-18 01:43 +0000
                Re: malloc Kaz Kylheku <kaz@kylheku.com> - 2012-02-18 02:04 +0000
                Re: malloc scott@slp53.sl.home (Scott Lurndal) - 2012-02-18 03:04 +0000
                Re: malloc Robert Wessel <robertwessel2@yahoo.com> - 2012-02-17 22:15 -0600
                Re: malloc Joshua Maurice <joshuamaurice@gmail.com> - 2012-02-17 23:48 -0800
              Re: malloc Kaz Kylheku <kaz@kylheku.com> - 2012-02-17 23:29 +0000
                Re: malloc William Ahern <william@wilbur.25thandClement.com> - 2012-02-17 15:42 -0800
                Re: malloc "io_x" <a@b.c.invalid> - 2012-02-19 18:24 +0100
                Re: malloc Kleuske <kleuske@nowhere.net> - 2012-02-19 20:41 +0000
                Re: malloc James Kuyper <jameskuyper@verizon.net> - 2012-02-19 18:05 -0500
                Re: malloc "io_x" <a@b.c.invalid> - 2012-02-20 12:24 +0100
                Re: malloc Kleuske <kleuske@nowhere.net> - 2012-02-20 13:56 +0000
                Re: malloc "io_x" <a@b.c.invalid> - 2012-02-20 15:14 +0100
                Re: malloc William Ahern <william@wilbur.25thandClement.com> - 2012-02-19 15:19 -0800
        Re: malloc Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-02-17 08:06 -0500
          Re: malloc Goran <goran.pusic@gmail.com> - 2012-02-18 07:57 -0800
            Re: malloc Keith Thompson <kst-u@mib.org> - 2012-02-18 10:57 -0800
            Re: malloc Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-02-19 08:51 -0500
      Re: malloc Noob <root@127.0.0.1> - 2012-02-17 11:44 +0100
        Re: malloc "Joachim Schmitz" <nospam.jojo@schmitz-digital.de> - 2012-02-17 17:05 +0100
          Re: malloc pete <pfiland@mindspring.com> - 2012-02-17 11:19 -0500
            Re: malloc Noob <root@127.0.0.1> - 2012-02-17 17:30 +0100
          Re: malloc James Kuyper <jameskuyper@verizon.net> - 2012-02-17 11:31 -0500
      Re: malloc scott@slp53.sl.home (Scott Lurndal) - 2012-02-17 20:31 +0000
        Re: malloc Joshua Maurice <joshuamaurice@gmail.com> - 2012-02-18 00:01 -0800
          Re: malloc scott@slp53.sl.home (Scott Lurndal) - 2012-02-18 17:07 +0000
            Re: malloc Joshua Maurice <joshuamaurice@gmail.com> - 2012-02-18 18:14 -0800
              Re: malloc scott@slp53.sl.home (Scott Lurndal) - 2012-02-19 17:14 +0000
  Re: malloc Goran <goran.pusic@gmail.com> - 2012-02-16 23:43 -0800
  Re: malloc "io_x" <a@b.c.invalid> - 2012-02-19 16:44 +0100

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