On Thu, 15 Mar 2012 22:16:18 -0400, Kevin <kevincox...@gmail.com> wrote:
This is in no way D specific but say you have two constant strings.
const char[] a = "1234567890";
// and
const char[] b = "67890";
You could lay out the memory inside of one another. IE: if a.ptr = 1
then b.ptr = 6. I'm not sure if this has been done and I don't think it
would apply very often but it would be kinda cool.
I thought of this because I wanted to pre-generate hex-representations
of some numbers I realized I could use half the memory if I nested them.
(At least I think it would be half).
I have done this manually in the past. In an application that ran on a
8-bit micro with 256 bytes of RAM and 4K code space, I ran out of space
and was able to save quite a bit by making one large string array with all
the data, and then use pointer/length combinations out of that string
array.
It seems like the compiler could do some work, but what about CTFE? I
think this would be a cool project. But I'm not sure if CTFE can save
state for later...
string poolString(string s)
{
// look for s in existing pool, if found, return
// otherwise, add to pool.
}
-Steve
