Re: It seems pure ain't so pure after all

[jerro]

private auto _funimpl(string s) {
/* what was previously in fun(string) */
}

template fun(string s)
{
   enum fun = _funimpl(s);
}

// usage:

fun!("times"); // always executes _funimpl at compile time

-Steve

You could even use this template:

template ct(alias f)
{
    template ct(params...)
    {
        enum ct = f(params);
    }
}

to define templates like this:

alias ct!((string s)
{
    // function body...
}) fun;


or with this syntax:

alias ct!(a => a * a) pow2;