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From: Tobias Blass <tobiasblass@gmx.net>
Newsgroups: comp.lang.java.programmer
Subject: Re: calling own methods from constructor
Date: Thu, 7 Apr 2011 19:00:46 +0000 (UTC)
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On 2011-04-07, Alessio Stalla <alessiostalla@gmail.com> wrote:
> On 7 Apr, 14:19, Andreas Leitgeb <a...@gamma.logic.tuwien.ac.at>
> wrote:
>> Casting in C++ is something different than in Java.
>> Although, if you really do C, not C++, then it's it's
>> much more like Java, except for the lacking safety net.
>
> I don't know about C++, but in C casting is not like Java at all. In
> Java a cast is a runtime operation that checks the type of some object
> (I'm not considering primitives). Of course the compiler knows about
> it and uses it at compile-time too for type checking, but that's
> somewhat a consequence of the previous point. In C, instead, casting
> has no(*) runtime behavior; it's just an instruction for the compiler:
> "please consider this datum to be of this type". If the compiler
> accepts your order, it will blindly treat that datum as if it's of the
> type you told it is, even if at runtime it's not.
>
> (*) actually, it might perform conversions in certain corner cases,
> but still no runtime type check is ever done.
Is there any case where the C compiler rejects casts? I cannot imagine an
example.