compile-time variables?

[Robert Fraser]

SMAAART! Thanks!

vsb Wrote:

> May be this helps you.
> 
> char[] int2str(int n) {
>     if (n == 0)
> 	return "0";
> 
>     char[] result = "";
>     int m = 1;
>     while (m <= n)
> 	m *= 10;
>     m /= 10;
>     while (m > 0) {
> 	result ~= '0' + n / m;
> 	n %= m;
> 	m /= 10;
>     }
> 
>     return result;
> }
> 
> char[] unique_var(char[] type, char[] pref, int n) {
>     char[] name = pref ~ int2str(n);
> 
>     return
> 	`static if (is(typeof(` ~ name ~ `))) { `
> 	`    mixin(unique_var("` ~ type ~ `", "` ~ pref ~ `", ` ~ int2str(n + 1) ~ `));`
> 	`}`
> 	`else {`
> 	`    ` ~ type ~ ` ` ~ name ~ `;`
> 	`}`;
> }
> 
> 
> void main()
> {
>     mixin(unique_var("int", "n", 0));
>     n0 = 1;
>     mixin(unique_var("int", "n", 0));
>     n1 = 2;
> }