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Groups > comp.lang.c++ > #10882
| From | Richard Damon <news.x.richarddamon@xoxy.net> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) |
| Date | 2011-10-15 21:37 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <j7dcfu$e8c$1@dont-email.me> (permalink) |
| References | <2508ba10-93ae-4864-bb07-dc418eae066b@g16g2000yqi.googlegroups.com> <9fu8pkFvblU5@mid.individual.net> <4ecf2948-8536-44e4-8226-2a0f339ece27@z26g2000yqh.googlegroups.com> <9fud8dFvblU6@mid.individual.net> <890f7f8d-21b6-4068-9292-c88f24dc023e@v8g2000vbe.googlegroups.com> |
On 10/15/11 6:43 PM, Martin Jørgensen wrote: > On Oct 15, 11:45 pm, Ian Collins<ian-n...@hotmail.com> wrote: >> On 10/16/11 10:17 AM, someone wrote: > >>>> The most convenient way to convert the byte order is to use the network >>>> ordering functions (if your platform has them). See ntohl. >> >>> Sorry, I have absolutely no idea about any network functions... >>> I was (pretty) sure that somebody had some code they could show here? >>> This "ntohl" looks a bit confusing to me - besides that, it's not >>> standard C++. >> >> They are typically macros, just look them up if you want to see how they >> work. > > Ok. > >>>>> And what about big endian / little endian? I'm confused. Looking >>>>> forward to hear from you! >> >>>> Google "endian" >> >>> I did it. But what I meant is, what are your thoughts about it, when >>> reading a binary file like shown in my code? >> >> I use the network byte order functions, that's what they are there for. > > Hmm... Based on my output to Richard - do I then have an endian > problem? Sorry I'm a bit too unexperienced to fully understand this > yet. A few replies and I think I'll understand it.. > > Thanks a lot for your (you, Richard and Ebenezer) help so far! :-) Your data in the file is little endian. You have a problem if your processor is not little endian.
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reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-15 12:00 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Ian Collins <ian-news@hotmail.com> - 2011-10-16 09:29 +1300
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-15 14:17 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Ebenezer <woodbrian77@gmail.com> - 2011-10-15 14:41 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Ian Collins <ian-news@hotmail.com> - 2011-10-16 10:45 +1300
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Martin Jørgensen <mjoerg@gmail.com> - 2011-10-15 15:43 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Richard Damon <news.x.richarddamon@xoxy.net> - 2011-10-15 21:37 -0400
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-15 23:23 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Ian Collins <ian-news@hotmail.com> - 2011-10-16 20:53 +1300
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Paavo Helde <myfirstname@osa.pri.ee> - 2011-10-16 03:04 -0500
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Ian Collins <ian-news@hotmail.com> - 2011-10-16 21:52 +1300
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-10-16 18:21 +0000
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Richard Damon <news.x.richarddamon@xoxy.net> - 2011-10-16 16:40 -0400
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Ian Collins <ian-news@hotmail.com> - 2011-10-17 10:00 +1300
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-16 15:19 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Richard Damon <news.x.richarddamon@xoxy.net> - 2011-10-16 20:03 -0400
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-16 17:49 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Richard Damon <news.x.richarddamon@xoxy.net> - 2011-10-16 21:29 -0400
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-10-17 09:10 +0000
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Richard Damon <news.x.richarddamon@xoxy.net> - 2011-10-15 17:35 -0400
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Martin Jørgensen <mjoerg@gmail.com> - 2011-10-15 15:39 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-15 16:12 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-15 16:32 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Richard Damon <news.x.richarddamon@xoxy.net> - 2011-10-15 19:41 -0400
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-16 11:33 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Paavo Helde <myfirstname@osa.pri.ee> - 2011-10-16 13:54 -0500
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Paavo Helde <myfirstname@osa.pri.ee> - 2011-10-16 14:01 -0500
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-16 15:12 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Richard Damon <news.x.richarddamon@xoxy.net> - 2011-10-16 20:14 -0400
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-16 17:56 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Ian Collins <ian-news@hotmail.com> - 2011-10-16 12:33 +1300
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-15 16:37 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Leigh Johnston <leigh@i42.co.uk> - 2011-10-16 19:59 +0100
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Leigh Johnston <leigh@i42.co.uk> - 2011-10-16 20:13 +0100
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Joshua Maurice <joshuamaurice@gmail.com> - 2011-10-17 18:17 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Joshua Maurice <joshuamaurice@gmail.com> - 2011-10-17 18:32 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Pavel <pauldontspamtolk@removeyourself.dontspam.yahoo> - 2011-10-15 19:56 -0400
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-15 23:27 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Paavo Helde <myfirstname@osa.pri.ee> - 2011-10-16 02:48 -0500
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-16 10:57 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Paavo Helde <myfirstname@osa.pri.ee> - 2011-10-16 13:18 -0500
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-16 12:52 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-16 10:58 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Paavo Helde <myfirstname@osa.pri.ee> - 2011-10-16 13:37 -0500
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) someone <newsboost@gmail.com> - 2011-10-16 14:37 -0700
Re: reading binary file into memory. Converting from char to uint32, float, double, ASCII strings etc (static_cast< > ?) Paavo Helde <myfirstname@osa.pri.ee> - 2011-10-17 01:21 -0500
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