[Haskell-beginners] cascade of if statements

[Emmanuel Touzery]

Thank you that is very interesting... this is really impressive with
haskell that it's so "easy" to add such operators, that they don't need to
be builtin.

Thanks for your time, it was not wasted!

On Wed, Oct 31, 2012 at 6:26 PM, Daniel Trstenjak <
daniel.trstenjak at gmail.com> wrote:

>
> On Wed, Oct 31, 2012 at 06:14:52PM +0100, Daniel Trstenjak wrote:
> > (<&&>) :: Monad m => m Bool -> m Bool -> m Bool
> > (<&&>) m1 m2 = do
> >    r1 <- m1
> >    if r1 then m2 else return False
> >
> >
> > (<||>) :: Monad m => m Bool -> m Bool -> m Bool
> > (<||>) m1 m2 = do
> >    r1 <- m1
> >    if r1 then return True else m2
>
> That the operators behave like the boolean ones we should have the same
> fixity declarations:
>
> infixr 3 (<&&>)
> infixr 2 (<||>)
>
>
> Greetings,
> Daniel
>
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