From: Robert Klemme <bob.news@...>
Date: 2004-03-11T21:04:42+09:00
Subject: Re: saving array


"gabriele renzi" <surrender_it@remove.yahoo.it> schrieb im Newsbeitrag
news:c30v401l703lrie4ogcjbsa5rvmir30v3v@4ax.com...
> il 10 Mar 2004 12:36:16 -0800, mopthisandthat@hotmail.com (Phidippus)
> ha scritto::
>
> >After I do bunch of computations and create a huge array with bunch of
> >numbers, I like to use the already-computed array in another program
> >rather than re-computing it each time I run the program. How can I
> >save the array object in one program and read it from another program
> >in ruby?
>
> $irb
> irb(main):001:0> Marshal.dump([1,2,3],open('ary.dat','w+'))
> => #<File:ary.dat>
> irb(main):002:0> exit

You should rather do

Marshal.dump([1,2,3],open('ary.dat','wb')).close()

in order to properly close the array.  But the block form is even better
as it ensures closing of the file under all conditions (others posted this
form already):

File.open('ary.dat','wb') {|f| Marshal.dump([1,2,3],f) }

Similar for reading.

    robert