How to generate a variable-length array in C#?

[moonriver]

I intend to generate a variable-length array, similar to link lists in plain C. For example, I define the following array

int [] a

Initially I assign 5 elements to the array as

a = new int[5]
for( k = 0; k < 5; k++
a[k] = k

Then I want to expand the array to 7 elements without discarding the original 5 elements. How to do

[Lasse Vågsæther Karlsen]

Re: How to generate a variable-length array in C#?

=?Utf-8?B?bW9vbnJpdmV y?= <xiaodan98@yaho o.com> wrote in
news:78F44B07-77CC-4845-8FA5-EEE0DE27A6CD@mi crosoft.com:
[color=blue]
> I intend to generate a variable-length array, similar to link lists in
> plain C. For example, I define the following array:
>[/color]
<snip>[color=blue]
> Then I want to expand the array to 7 elements without discarding the
> original 5 elements. How to do?[/color]

Create a new array with the new size and copy over the existing elements.
Then replace the existing array with the new one.

Something like:

Int32[] b = new Int32[7];
Array.Copy(a, 0, b, 0, 5);
a = b;

You might want to look at the ArrayList class too.

--
Lasse Vågsæther Karlsen
lasse@vkarlsen. no
PGP KeyID: 0x0270466B