X-Authentication-Warning:	delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient:	geda-user AT delorie DOT com
X-Original-DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed;
	d=gmail.com; s=20120113;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to;
	bh=RdObdzTlsdMLhHmqltiX9jUYbh33qUvZCx5zNAI6B7c=;
	b=IADZf7b75DDlslRvZCEjqiPQu5ZIdMapycZlofybYcVoI+0wUuVMdc18tuhNdiON2O
	Br5G1PkwZwZd5CC9nqUq80CGEuC223xtiPAZAutxGyRs/OIKeDoG2IsXfx0Gq6nOFW+g
	CplVa72+85kEqy8JmPCoc0qwiw2kLU4bzN0+ZigrlBMX+C/DDrpOfy9NzP6xY87kPKFw
	IgzoNYDLbJPoFKMx8g/q7Sihlu4v8P8WpZ2z1Lyoqc4Z76NiQLOegG2cqVyU1cOl+zSA
	9bRqXIEugZCvYCrNw+uCP9PF5GRyyZQzUIROfizAz+AcmhH03IVRSTmJjjOqSEUOR4G2
	voPQ==
X-Google-DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed;
	d=1e100.net; s=20130820;
	h=x-gm-message-state:mime-version:in-reply-to:references:date
	:message-id:subject:from:to;
	bh=RdObdzTlsdMLhHmqltiX9jUYbh33qUvZCx5zNAI6B7c=;
	b=j1/ZBjlQnMBInu24nkzkR+BXkuhvLET0LzLR/1cHG7alwTY+ZzlJmdmxHaFILetOfF
	c9txX8QAnd3n39mN2ecdx7z/nwc43Ehj+MTI1cKeMehDmMiN8N8AwhRqg+SHckfPILUl
	26POzLznV8kaZrRb3HwRuXR1dSN4p1x4t+Llsk/ymwEnw+t2gsTLOX0/rD7SIAlg+xAD
	+otH1t+j6ocHlfzBmhcKviytBqRqDMMumZ2o433VJnEHwiKgMb0DYTFrq+NO4/bfpL1Q
	UtbLfXdu8qKlApIw1rgef3FwGIEOvWfigyhPc+kL7oYnC5v7ENLT3nq0aLzILZw5TxWc
	qPqg==
X-Gm-Message-State:	AOPr4FUKQc55WozB2J5CMME0QP3AUljEnjUmQzoG9+DLKlTDM8ZDkVC0O0WG3KB97HvNyl+GKLLYCzL0JscsgQ==
MIME-Version:	1.0
X-Received:	by 10.28.188.7 with SMTP id m7mr9611850wmf.37.1463258800552; Sat,
	14 May 2016 13:46:40 -0700 (PDT)
In-Reply-To:	<201605141432.u4EEWZ9s018507@envy.delorie.com>
References:	<154a7fb8d8c-2a04-17506 AT webprd-a31 DOT mail DOT aol DOT com>
	<20160513081037 DOT GA23474 AT visitor2 DOT iram DOT es>
	<5735ACC6 DOT 30105 AT iee DOT org>
	<alpine DOT DEB DOT 2 DOT 00 DOT 1605140519090 DOT 28818 AT igor2priv>
	<20160514094703 DOT fc95ba64dab2c53b068f260c AT gmail DOT com>
	<201605141432 DOT u4EEWZ9s018507 AT envy DOT delorie DOT com>
Date:	Sat, 14 May 2016 12:46:40 -0800
Message-ID:	<CAC4O8c_kRySdpi9O9WxZyRRkre=ic_kr5FA7eEnuy2d-hHqEXA@mail.gmail.com>
Subject:	Re: [geda-user] Re: gschem annoyances (C++)
From:	"Britton Kerin (britton DOT kerin AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To:	geda-user AT delorie DOT com
Reply-To:	geda-user AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	geda-user AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

On Sat, May 14, 2016 at 6:32 AM, DJ Delorie <dj AT delorie DOT com> wrote:
>
>> Main advantage of object oriented programming is function
>> overloading and private variables in structures but excess amount of
>> features stuffed in C++ is really a problem. I think C++ does not
>> handle polymorphism well.
>
> The whole point of C++ is to handle polymorphism well, and it does.
> For programs like gschem and pcb, which have lots of object types that
> are "similar but different", an object oriented language like C++
> should be an obvious choice.
>
> Unfortunately, C++ is a huge toolbox and people think you have to use
> every tool for every application, which leads to messy code.  Please
> don't assume that's the case, or that C++ code is going to be harder
> to understand than C.
>
>> C/C++ lack good type checking which is a real disadvantage.
>
> Well, C maybe, C++ has great support for type checking.  You just have
> to write type-specific code.

gobject has fine type checking mechanism pcb just doesn't use it.  It wouldn't
be worth it at all because as lisp/duck type proponents point out type errors
aren't actually a problem in practice at least for programs pcb size.
Admittedly
gobject types are a pain to use but it's really not much worse than C++ where
you need two parallel object structures one with pointers and then the
same thing
over again with refs.

Britton

- Raw text -