Running out of memory ctfe 16GB

[ketmar via Digitalmars-d]

Nierjerson wrote:

> How to implement trick is this and are you 100% sure it works?
>
> e.g.,
>
> char[] x;
>
> x.length = 65536;
> x.length = 0;

this won't work. the moment you did `.length = 0;`, you are returned to 
point zero.

what you have to do is to maintain "shadow length" yourself, like this:

	x.length = 65536;
	size_t xpos = 0;
	
	void put (const(char)[] s...) {
		foreach (immutable char ch; s) {
			if (xpos == x.length) x.length += 65536; // or anything
			x[xpos++] = ch;
		}
	}