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Today's Topics:
聽 聽1.聽 OPERATOR OVERLOADING AS IN C++ (Praveen Velliengiri)
聽 聽2. Re:聽 OPERATOR OVERLOADING AS IN C++ (Francesco Ariis)
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Message: 1
Date: Tue, 14 Feb 2017 18:21:37 +0530
From: Praveen Velliengiri <praveenvelliengiri@gmail.com>
To: beginners@haskell.org
Subject: [Haskell-beginners] OPERATOR OVERLOADING AS IN C++
Message-ID:
聽 聽 聽 聽 <CAL56b7SMDdF+doiqyLxTM85Tgv+R=ooMrP2TaLmAHSuaBtOo+A@mail. gmail.com >
Content-Type: text/plain; charset="utf-8"
I'm new to functional programming, Whether it is possible to do operator
overloading聽 in Haskell ? I go through the Idea of TYPECLASSES in Learn you
haskell tutorial. But I can't understand the idea Can anyone suggest me
some idea regarding Operator overloading and Type classes in Haskell.
Thank you guys
聽Praveen v
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Message: 2
Date: Tue, 14 Feb 2017 14:18:19 +0100
From: Francesco Ariis <fa-ml@ariis.it>
To: beginners@haskell.org
Subject: Re: [Haskell-beginners] OPERATOR OVERLOADING AS IN C++
Message-ID: <20170214131819.GA3107@casa.casa>
Content-Type: text/plain; charset=utf-8
On Tue, Feb 14, 2017 at 06:21:37PM +0530, Praveen Velliengiri wrote:
> I'm new to functional programming, Whether it is possible to do operator
> overloading聽 in Haskell ? I go through the Idea of TYPECLASSES in Learn you
> haskell tutorial. But I can't understand the idea Can anyone suggest me
> some idea regarding Operator overloading and Type classes in Haskell.
> Thank you guys
Hello Praveen,
聽 聽 indeed Haskell uses typeclasses to deal with ad hoc polymorphism.
Are you familiar with any of them? If I write in ghci:
聽 聽 位> show 707
聽 聽 "707"
聽 聽 位> show True
聽 聽 "True"
聽 聽 位> show 'c'
聽 聽 "'c'"
聽 聽 位> show "palla"
聽 聽 "\"palla\""
that is possible because numerous types are instances of the typeclass
Show, which provides `show`
聽 聽 位> :t show
聽 聽 show :: Show a => a -> String
Does that help a bit? Or you aren't sure about the typeclass syntax?
------------------------------
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