I wish to create an array that points to, say, the middle
section of a different array.
eg
Original array >[0] [1] [2] [3] [4] [5] [6] [7]
second array-------------^
[0] [1] [2] [3] [4] [5]
Is this at all possible?? I think that it could be done in
c++, but I dont have a clue as to how to do it in vb.net
if it is even possible.
thanks for all help
Nov 20 '05
12  1944 
Then why not just open the file in binary to read it.
Read until you hit that marker....
Wouldn't that do what you want?
Shane
"jamie" <an*******@disc ussions.microso ft.com> wrote in message
news:78******** *************** *****@phx.gbl.. . Unfortunatly I am processing potentialy quite a few
hundred mb (up to one or two gig!) of data, so yes there
could be a major speed penalty at stake.
What I mean is that I am getting data from files and
am putting it in a byte array. I'll scan throught the
byte array and find a marker character. The marker
indicates the beginning of a compleat packet.
If I could have a an array pointing to the beginning
of the new found packet, then I would not have to
calculate the offset from the beginning of the original
byte array.
does this clear things up?
-----Original Message-----
"jamie" <an*******@disc ussions.microso ft.com> wrote in
messagenews:75******* *************** ******@phx.gbl. .. no, I am not using an array list.
I dont know how much of a speed penilty there would be
by using it.
I suspect there would be far less of a penalty than you
might imagine. IMEthere is not a perceptible difference, although if you
are intenselyprocessing a couple thousand elements it might matter.
Some of what is happening here is only semantics...
Since an array usuallycontains more than one of something, I am a bit unclear
when you say "arraypointing to the beginning of the packet". To me, that
sounds like a simplevariable, not an array.
Are you wanting to treat each element of a string array
as if it were itselfan array of characters?
Best Regards,
Andy
.
I seam to pay a huge price for doing that. I have improved
the speed of my program one-hundred fold by using
filestream.read (array,offset, bytecount).
I still have one more trick up my sleeve to improve upon
that too.
I was just hoping that there was an even better way.
Thanks anyhow.
jamie. -----Original Message-----
Then why not just open the file in binary to read it.
Read until you hit that marker....
Wouldn't that do what you want?
Shane
"jamie" <an*******@disc ussions.microso ft.com> wrote in
message
I seam to pay a huge price for doing that. I have improved
the speed of my program one-hundred fold by using
filestream.read (array,offset, bytecount).
I still have one more trick up my sleeve to improve upon
that too.
I was just hoping that there was an even better way.
Thanks anyhow.
jamie. -----Original Message-----
Then why not just open the file in binary to read it.
Read until you hit that marker....
Wouldn't that do what you want?
Shane
"jamie" <an*******@disc ussions.microso ft.com> wrote in
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