big endian

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4 total messages Started by Boba Thu, 02 Mar 2006 18:39

#4195

Author: Boba
Date: Thu, 02 Mar 2006 18:39

3 lines
829 bytes

hallo,
wanna ask you if there's a native/vcl utility to handle big endians?
thanx. boba.

Re: big endian

#4196

Author: Alan Bellingham
Date: Thu, 02 Mar 2006 18:55

18 lines
1420 bytes

"Boba" <Boba@somewhere.world> wrote:

>hallo,
>wanna ask you if there's a native/vcl utility to handle big endians?

I'm not sure what you're after, but you might find that htonl(),
htons(), ntohl() and ntohs() are what you're after. They convert
unsigned shorts and unsigned longs between machine native ('host') order
and the tcp/ip ('network') order.

(See winsock2.h)

There are also similar functions with the WSA prefix, but which are more
complicated and which don't, on first sight, do anything extra.

Alan Bellingham
-- 
ACCU Conference 2006 - 19-22 April, Randolph Hotel, Oxford, UK

Re: big endian

#4198

Author: Boba
Date: Fri, 03 Mar 2006 16:41

20 lines
1656 bytes

"Alan Bellingham" <alanb@episys.com> wrote in message
news:gife025lrvhio05ru5aqo85pt38r80b7pf@4ax.com...
> ...
> I'm not sure what you're after, but you might find that htonl(),
> htons(), ntohl() and ntohs() are what you're after. They convert
> unsigned shorts and unsigned longs between machine native ('host')
order
> and the tcp/ip ('network') order.
>
> (See winsock2.h)
>
> There are also similar functions with the WSA prefix, but which are
more
> complicated and which don't, on first sight, do anything extra.
>
> Alan Bellingham
> --
> ACCU Conference 2006 - 19-22 April, Randolph Hotel, Oxford, UK
Yhank you, Alan. I need'em for a project on font designing. Turns
out font files use motorola convention. How about 2.14 floats?

Re: big endian

#4201

Author: Michael Gillen
Date: Fri, 03 Mar 2006 19:18

13 lines
1039 bytes

Boba wrote:

> hallo,
> wanna ask you if there's a native/vcl utility to handle big endians?
> thanx. boba.

#define HILO(a) ((((a)>>8) & 0xff) | (((a)<<8) & 0xff00)) /* Set HI-LO order */
#define LHILO(a) ((HILO((a) & 0xffff)<<16)+HILO((a)>>16))

int dataSize = LHILO(Header->dwDataSize)

-- 
-Michael Gillen

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