Implementing Pure Functions

[Jimmy Cao]

On Thu, Jun 16, 2011 at 6:07 AM, Kagamin <spam at here.lot> wrote:

> Walter Bright Wrote:
>
> > http://drdobbs.com/blogs/tools/230700070
>
> import std.stdio;
>
> int square_debug(int x)
> {
>    writefln("square(%d)", x);
>    return x * x;
> }
>
> pure alias int function(int) fp_t;
>
> pure int square(int x)
> {
>    auto fp = cast(fp_t)&square_debug;
>    return (*fp)(x); // dereference???
> }
>

Yes, that's correct.
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