updating a file at the same time

[dost]

hi..friends...
can any budy ..help..me out..plz answer these question..
Q1 how can i open a file so that other programs can update it at the
same time.

Q2 when should the register modifier be used ? does it really work.

Q3 eqivalent expression to x%8

plzz ans

with warm regards
dost

[Rani Kamale]

x-(x/8)*8

[Tomás]

dost posted:

hi..friends...
can any budy ..help..me out..plz answer these question..

Try alt.do.my.homework

Q1 how can i open a file so that other programs can update it at the
same time.
Platform-specific as far as I'm aware. If you're using MS Windows, try
using a flag something like NOT_EXCLUSIVE_OPEN.

Q2 when should the register modifier be used ? does it really work.
Use the "register" modifier if you would like your value to be stored in
a CPU register rather than in actual memory.

I've never used it so I can't give any help.
Q3 eqivalent expression to x%8

( x - ( x / 8 ) * 8 )
-Tomás

[dost]

Rani Kamale wrote:

x-(x/8)*8

plz...give..me the ans of question1..and question2....
if possible

[benben]

dost wrote:

Q1 how can i open a file so that other programs can update it at the
same time.

You surely don't want to do that do you? Ever heard of race condition?