From: Logan Capaldo <logancapaldo@...>
Date: 2005-05-12T08:35:33+09:00
Subject: Re: alternatives to ? : contruct

On 5/11/05, Logan Capaldo <logancapaldo@gmail.com> wrote:
> On 5/11/05, David A. Black <dblack@wobblini.net> wrote:
> > Hi --
> >
> > On Thu, 12 May 2005, Logan Capaldo wrote:
> >
> > > On 5/11/05, John-Mason P. Shackelford <jpshack@gmail.com> wrote:
> > >> As an alternative to:
> > >>
> > >> a = y == z ? b : c
> > >>
> > >> we can say:
> > >>
> > >> a = (b if y == x) || c
> > >>
> > >> Can anyone think of others?
> > >
> > > Heres one way:
> > >
> > > x == y and a = b or c
> >
> > In the case where x != y, that expression will just return c, without
> > assigning it to a.  (I learned this the hard way either here or on IRC
> > recently :-)
> >
> > David
> >
> > --
> > David A. Black
> > dblack@wobblini.net
> >
> >
> 
> Yeah, that was the the point.
> 
> If (x == y) then a = b else c end
> is equivalent to x == y and a = b or c
> 

if you wanted to assign to a the result of the expression just like a
?: you'd do
a = (y == x and b) or c

unfortunately you have to use the parens in this case

you could also do y == x and a = b or a = c