a treelang question about printf.

[Der-Johng Sun]

Because I define a "write" token in lex, and I want it behave like printf.


Best regards,
        Der-Johng Sun

 
> -----Original Message-----
> From: gcc-owner@gcc.gnu.org [mailto:gcc-owner@gcc.gnu.org] On
> Behalf Of James A. Morrison
> Sent: Monday, January 17, 2005 10:31 PM
> To: Der-Johng Sun
> Cc: gcc@gcc.gnu.org
> Subject: Re: a treelang question about printf.
> 
> 
> 
> "Der-Johng Sun" <derjohng@hyweb.com.tw> writes:
> 
> > Hi,
> >  
> > I try to implement a litter front end with the gcc. But I
> am confused,
> > about the printf(). How to implement the code?
> >  
> > test()
> > {
> >     write("Hello World!!\n");   -- I want to call printf.
> > }
> >  
> > I had found the informations such as BUILT_IN_PRINTF,
> > expand_builtin_fprintf etc... But I still don't known how 
> to implement
> > it.
> 
>  Why not just build a CALL_EXPR to printf instead of a
> CALL_EXPR to write ?
>   
> > I'm novice. I'm sorry if it is a stupid question.
> >