Inverting Binary Vales

[Thaynann]

im new to working with binary data, i was wondering if tehr was an easy way
to flip the values ie....f7 becomes 7f....things like that...im using c#.

[Sean Hederman]

Re: Inverting Binary Vales

"Thaynann" <Thaynann@discu ssions.microsof t.com> wrote in message
news:D2A9ABFB-68ED-455B-903B-7AE019600435@mi crosoft.com...[color=blue]
> im new to working with binary data, i was wondering if tehr was an easy
> way
> to flip the values ie....f7 becomes 7f....things like that...im using c#.[/color]

I think System.Net.IPAd dress.NetworkTo HostOrder will convert from little
endian to big endian and vice-versa.

[Jon Skeet [C# MVP]]

Re: Inverting Binary Vales

Thaynann <Thaynann@discu ssions.microsof t.com> wrote:[color=blue]
> im new to working with binary data, i was wondering if tehr was an easy way
> to flip the values ie....f7 becomes 7f....things like that...im using c#.[/color]

Sean's mentioned a way of doing some big-endian stuff, and there's also
my EndianBitConver ter which allows you to specify which endianness you
want: http://www.pobox.com/~skeet/csharp/miscutil

However, that's not *quite* what you asked for - do you *really* want
to flip nybbles? If so, it's as simple as:

byte flipped = (byte)( (original & 0xf) << 4 |
(original & 0xf0) >> 4);

--
Jon Skeet - <skeet@pobox.co m>

http://www.pobox.com/~skeet

If replying to the group, please do not mail me too