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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: What is the value after operator '!'? |
| Date | 2015-10-26 17:12 -0700 |
| Organization | None to speak of |
| Message-ID | <lnio5tdv9z.fsf@kst-u.example.com> (permalink) |
| References | (2 earlier) <090eee37-7aeb-47e7-b195-ce3900b30fff@googlegroups.com> <87si4xjzui.fsf@bsb.me.uk> <ln8u6pfqup.fsf@kst-u.example.com> <d0132578-984d-47b0-995e-a3d2aebeeaaf@googlegroups.com> <n0m2bp$r67$1@speranza.aioe.org> |
glen herrmannsfeldt <gah@ugcs.caltech.edu> writes:
[...]
> You only ever need to do that in very specific, system dependent cases.
>
> In those cases, you usually know how to do it.
>
> You could memcpy() zero bits into a pointer.
Yes.
> You could assign (void*)(intptr_t)0 to a pointer.
No, 0, (intptr_t)0, and (void*)(intptr_t)0 are all null pointer
constants.
[...]
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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What is the value after operator '!'? fl <rxjwg98@gmail.com> - 2015-10-26 06:21 -0700
Re: What is the value after operator '!'? Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-10-26 09:29 -0400
Re: What is the value after operator '!'? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-26 13:42 +0000
Re: What is the value after operator '!'? supercat@casperkitty.com - 2015-10-26 07:53 -0700
Re: What is the value after operator '!'? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-26 17:37 +0000
Re: What is the value after operator '!'? Keith Thompson <kst-u@mib.org> - 2015-10-26 11:05 -0700
Re: What is the value after operator '!'? supercat@casperkitty.com - 2015-10-26 11:38 -0700
Re: What is the value after operator '!'? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-26 20:27 +0000
Re: What is the value after operator '!'? supercat@casperkitty.com - 2015-10-26 14:16 -0700
Re: What is the value after operator '!'? Keith Thompson <kst-u@mib.org> - 2015-10-26 17:15 -0700
Re: What is the value after operator '!'? Keith Thompson <kst-u@mib.org> - 2015-10-26 17:12 -0700
Re: What is the value after operator '!'? Ian Collins <ian-news@hotmail.com> - 2015-10-27 10:27 +1300
Re: What is the value after operator '!'? Keith Thompson <kst-u@mib.org> - 2015-10-26 15:15 -0700
Re: What is the value after operator '!'? supercat@casperkitty.com - 2015-10-26 16:16 -0700
Re: What is the value after operator '!'? Keith Thompson <kst-u@mib.org> - 2015-10-27 08:39 -0700
Re: What is the value after operator '!'? Richard Heathfield <rjh@cpax.org.uk> - 2015-10-26 14:04 +0000
Re: What is the value after operator '!'? Geoff <geoff@invalid.invalid> - 2015-10-26 09:50 -0700
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