Re: [Tinycc-devel] Local procedures

[Zdenek Pavlas]

Antti-Juhani Kaijanaho wrote:
> On Wed, Sep 12, 2007 at 12:54:16PM +0200, Zdenek Pavlas wrote:
>   
> > Even if you really need a trampoline, you don't need a fancy compiler for 
> > that.  It's easy to implement (at least on i386) using the existing support 
> > for attribute(regparm).  Real closures in C- way more fun than gcc's nested 
> > functions, which are quite limited and (rightfully, IMO) seldom used.
> >     
>
> Except that what your example program does is not a real closure.
Right.  It was just an example how to implement a code semantically 
equivalent to nested functions.  Had the second argument to closure() 
been not a stack reference but a literal or a malloc()ed struct, 'fun' 
would become a real closure, a first-class object that could be 
return'ed, stored somewhere, etc.
> You *do* need compiler support for them.
>   
Syntax sugar, perhaps?

--
Zdenek Pavlas