Date: Fri, 24 Jan 2014 07:19:06 -0800 From: Adrian Chadd <adrian.chadd@gmail.com> To: Hans Petter Selasky <hps@bitfrost.no> Cc: "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>, Kevin Lo <kevlo@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "src-committers@freebsd.org" <src-committers@freebsd.org> Subject: Re: svn commit: r261118 - head/sys/dev/usb/wlan Message-ID: <CAJ-VmokKVKXCEpfTuSpN39%2BHAPqKnQ=m3uRTGBSds8qkhK=gyA@mail.gmail.com> In-Reply-To: <52E283EA.1050708@bitfrost.no> References: <201401240917.s0O9HTBO046991@svn.freebsd.org> <CAJ-Vmo=KVWR_b4%2BHTgC154C%2B7nnAxQWGPWQQxqvaOSAPZNdQTA@mail.gmail.com> <52E279FD.70909@bitfrost.no> <CAJ-Vmomc=s_E1U1OA==eHrVCOa4fD_1v-osDqZqS9wzcFx2fjw@mail.gmail.com> <52E283EA.1050708@bitfrost.no>
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On 24 January 2014 07:16, Hans Petter Selasky <hps@bitfrost.no> wrote: > On 01/24/14 16:11, Adrian Chadd wrote: >> >> ... How's that matter? >> >> Adrian > > > Ok, read slowly: > > uint32_t x = 255U; > uint8_t y; > > On Big endian: > > memcpy(&y, &x, 1); > > y == 0; > > On Little endian: > > memcpy(&y, &x, 1); > > y == 255; > > If I'm not mistaken. The code is wrong because result depends on endianness > :-) Right. But that has nothing to do with the memory copy operation. That has to do with how its stored. So again - how's memmove() not portable here? :) -a
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