Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.c > #75267

Re: Funny C Program

From James Kuyper <jameskuyper@verizon.net>
Newsgroups comp.lang.c
Subject Re: Funny C Program
Date 2015-11-07 11:24 -0500
Organization Self
Message-ID <563E25B0.8080504@verizon.net> (permalink)
References <e1367c64-92c8-4c2e-abb1-0ebf2c27bce7@googlegroups.com> <24250e2c-bcdd-4425-a730-433ffc6f89e0@googlegroups.com> <87ziyqtybf.fsf@bsb.me.uk> <lnr3k21ujq.fsf@kst-u.example.com> <4f00f36b-8b20-49e1-ad96-0a782787ac05@googlegroups.com>

Show all headers | View raw

On 11/06/2015 09:47 PM, jimzhou001@gmail.com wrote:
> Oh,I asked this question because I got into trouble not initializing.

If you provide even a single initializer for a array or struct, all of
the other elements of the array, or the other members of the struct, get
zero-initialized. However, if you provide no initializers, then unless
the object has static storage duration, all of the elements of the array
or the members of the struct have indeterminate values. It is never a
good idea to make any use of an indeterminate value - in particular, an
object whose value is indeterminate is allowed to be in a trap
representation - attempting to read the value of an object containing a
trap representation has undefined behavior.

Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Funny C Program jimzhou001@gmail.com - 2015-11-03 17:54 -0800
  Re: Funny C Program bartekltg <bartekltg@gmail.com> - 2015-11-04 05:28 +0100
    Re: Funny C Program Richard Heathfield <rjh@cpax.org.uk> - 2015-11-04 07:12 +0000
      Re: Funny C Program bartekltg <bartekltg@gmail.com> - 2015-11-04 13:25 +0100
        Re: Funny C Program bartekltg <bartekltg@gmail.com> - 2015-11-04 13:52 +0100
          Re: Funny C Program jimzhou001@gmail.com - 2015-11-04 06:36 -0800
    Re: Funny C Program jimzhou001@gmail.com - 2015-11-04 02:28 -0800
      Re: Funny C Program bartekltg <bartekltg@gmail.com> - 2015-11-04 13:25 +0100
    Re: Funny C Program Tim Rentsch <txr@alumni.caltech.edu> - 2015-11-04 19:07 -0800
      Re: Funny C Program bartekltg <bartekltg@gmail.com> - 2015-11-05 09:48 +0100
        Re: Funny C Program Tim Rentsch <txr@alumni.caltech.edu> - 2015-11-05 06:08 -0800
  Re: Funny C Program Richard Heathfield <rjh@cpax.org.uk> - 2015-11-04 07:04 +0000
    Re: Funny C Program jimzhou001@gmail.com - 2015-11-04 02:33 -0800
      Re: Funny C Program Richard Heathfield <rjh@cpax.org.uk> - 2015-11-04 10:57 +0000
        Re: Funny C Program jimzhou001@gmail.com - 2015-11-04 03:46 -0800
          Re: Funny C Program luser droog <luser.droog@gmail.com> - 2015-11-04 10:46 -0800
            Re: Funny C Program jimzhou001@gmail.com - 2015-11-04 15:14 -0800
  Re: Funny C Program brian.oakley@stonybrook.edu - 2015-11-04 12:37 -0800
    Re: Funny C Program jimzhou001@gmail.com - 2015-11-04 15:30 -0800
  Funny C Program jimzhou001@gmail.com - 2015-11-06 16:40 -0800
    Re: Funny C Program Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-07 01:04 +0000
      Re: Funny C Program Keith Thompson <kst-u@mib.org> - 2015-11-06 17:12 -0800
        Re: Funny C Program jimzhou001@gmail.com - 2015-11-06 18:47 -0800
          Re: Funny C Program James Kuyper <jameskuyper@verizon.net> - 2015-11-07 11:24 -0500
            Re: Funny C Program jimzhou001@gmail.com - 2015-11-07 16:21 -0800
              Re: Funny C Program Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-08 00:46 +0000
              Re: Funny C Program James Kuyper <jameskuyper@verizon.net> - 2015-11-07 19:56 -0500
                Re: Funny C Program jimzhou001@gmail.com - 2015-11-07 19:08 -0800
                Re: Funny C Program James Kuyper <jameskuyper@verizon.net> - 2015-11-08 10:58 -0500
                Re: Funny C Program James Kuyper <jameskuyper@verizon.net> - 2015-11-12 13:31 -0500
                Re: Funny C Program Keith Thompson <kst-u@mib.org> - 2015-11-12 11:59 -0800
                Re: Funny C Program jimzhou001@gmail.com - 2015-11-17 23:00 -0800
                Re: Funny C Program jimzhou001@gmail.com - 2015-11-18 00:12 -0800
                Re: Funny C Program Keith Thompson <kst-u@mib.org> - 2015-11-18 09:01 -0800
                Re: Funny C Program jimzhou001@gmail.com - 2015-11-17 23:00 -0800
    Re: Funny C Program James Kuyper <jameskuyper@verizon.net> - 2015-11-06 20:07 -0500

csiph-web