On 4 June 2013 14:12, Dave Tweed <pic@dtweed.com> wrote:

> A lot of us got into the habit of writing ++i "by default" (i.e., unless =
we
> really needed i++ in an expression), because many simple-minded
> small-system
> C compilers generate more efficient code for ++i than for i++, even if th=
e
> result isn't being used.
>

That's what I was thinking of, however, would not it be the same? Would not
compiler generate "INCF i,f; MOVF i,w" as opposed to "MOVF i,w; INCF i,f"
-- same amount of instructions? I can imagine there is a difference when
you do a "do..while(i--)" or "while(i--){}", so that the compiler can do a
single DECFSZ..GOTO. But then "--i" would be worse than "i--" in this
matter, right?

Tamas




>
> -- Dave Tweed
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--=20
int main() { char *a,*s,*q; printf(s=3D"int main() { char *a,*s,*q;
printf(s=3D%s%s%s, q=3D%s%s%s%s,s,q,q,a=3D%s%s%s%s,q,q,q,a,a,q); }",
q=3D"\"",s,q,q,a=3D"\\",q,q,q,a,a,q); }
--=20
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