Re: [avr-gcc-list] Initilizing complex const arrays : syntax ?

[David Kelly]

On Mon, Sep 19, 2005 at 10:19:41AM -0400, Dave Hansen wrote:

> Try something like
>
>   #include <stdlib.h>
>   ...
>   div_t qr;
>
>     while(x) {
>         qr = div(x,10);
>         buffer[i--] = qr.rem + '0';
>         x = qr.quot;
>     }
>
> I'm not certain this is optimal.  I haven't looked closely, but it
> looks like it should be.  It certainly has the opportunity to be.

Yeah! Thats what I was looking for. Exactly a FORTH /mod (pronounced
"slash mod")!

div() costs nothing to implement because its almost certain the avr-libc
division primatives will be included at link time. div() is only a macro
wrapping that routine so we can get at both dividend and remainder using
a struct. The exact same primative is used for division and modulo, the
only difference is which result is picked up.

Might be nice to add a udiv() and uldiv() to existing div() and ldiv().

--
David Kelly N4HHE, address@hidden
========================================================================
Whom computers would destroy, they must first drive mad.