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| From | Eric Sosman <esosman@comcast-dot-net.invalid> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: memset extensions |
| Date | 2015-11-11 11:44 -0500 |
| Organization | A noiseless patient Spider |
| Message-ID | <n1vr4e$2l7$1@dont-email.me> (permalink) |
| References | <n1v3pk$967$1@dont-email.me> <n1vj28$ush$3@dont-email.me> <n1vqdn$u0o$1@dont-email.me> |
On 11/11/2015 11:32 AM, jacobnavia wrote:
> Le 11/11/2015 15:30, Les Cargill a écrit :
>
>>
>>
>> It sounds like a complete waste of time. But if you insist:
>>
>> #define memset16(a,b,c) memset(a,b,(c*2))
>>
>
> The motivation is to use the native instructions of the x86 processor to
> fill in the array.
>
> And besides, you can't fill a int16_t array with memset unless all your
> values fit into a char...
Not even then.
int16_t array[10];
memset(array, 42, sizeof array);
assert(array[0] == 42); // Oops!
--
esosman@comcast-dot-net.invalid
"Don't be afraid of work. Make work afraid of you." -- TLM
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memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 11:05 +0100
Re: memset extensions Lőrinczy Zsigmond <zsiga@nospam.for.me> - 2015-11-11 11:08 +0100
Re: memset extensions "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-11 04:56 -0800
Re: memset extensions Philipp Klaus Krause <pkk@spth.de> - 2015-11-11 13:39 +0100
Re: memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 17:34 +0100
Re: memset extensions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-11 17:22 +0000
Re: memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 21:19 +0100
Re: memset extensions Keith Thompson <kst-u@mib.org> - 2015-11-11 12:51 -0800
Re: memset extensions James Kuyper <jameskuyper@verizon.net> - 2015-11-11 16:01 -0500
Re: memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 22:03 +0100
Re: memset extensions Keith Thompson <kst-u@mib.org> - 2015-11-11 13:19 -0800
Re: memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 22:45 +0100
Re: memset extensions James Kuyper <jameskuyper@verizon.net> - 2015-11-11 16:51 -0500
Re: memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 23:01 +0100
Re: memset extensions James Kuyper <jameskuyper@verizon.net> - 2015-11-11 17:29 -0500
Re: memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 23:36 +0100
Re: memset extensions Keith Thompson <kst-u@mib.org> - 2015-11-11 15:00 -0800
Re: memset extensions James Kuyper <jameskuyper@verizon.net> - 2015-11-11 16:48 -0500
Re: memset extensions Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-11 22:15 +0000
Re: memset extensions James Kuyper <jameskuyper@verizon.net> - 2015-11-11 08:05 -0500
Re: memset extensions Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-11-11 08:31 -0500
Re: memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 17:34 +0100
Re: memset extensions Les Cargill <lcargill99@comcast.com> - 2015-11-11 08:30 -0600
Re: memset extensions Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-11-11 09:48 -0500
Re: memset extensions gwowen <gwowen@gmail.com> - 2015-11-11 07:55 -0800
Re: memset extensions James Kuyper <jameskuyper@verizon.net> - 2015-11-11 11:24 -0500
Re: memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 17:32 +0100
Re: memset extensions Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-11-11 11:44 -0500
Re: memset extensions raltbos@xs4all.nl (Richard Bos) - 2015-11-17 22:53 +0000
Re: memset extensions supercat@casperkitty.com - 2015-11-17 15:37 -0800
Re: memset extensions raltbos@xs4all.nl (Richard Bos) - 2015-11-20 11:27 +0000
Re: memset extensions supercat@casperkitty.com - 2015-11-20 08:45 -0800
Re: memset extensions supercat@casperkitty.com - 2015-11-11 08:25 -0800
Re: memset extensions Keith Thompson <kst-u@mib.org> - 2015-11-11 09:09 -0800
Re: memset extensions supercat@casperkitty.com - 2015-11-11 09:18 -0800
Re: memset extensions Keith Thompson <kst-u@mib.org> - 2015-11-11 10:57 -0800
Re: memset extensions jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-11 21:17 +0100
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