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Re: Avoiding "assignment from incompatible pointer type" warning


>>>>> "Florian" == Florian Weimer <fw@deneb.enyo.de> writes:

    Florian> "Joshua Nye" <josh@boxcarmedia.com> writes:
    >>> > int *p; 
    >>> > float g = 3.141592653589793238;
    >>> > p = (int *)&g;
    >>> 
    >>> Is this code legal?  I doubt it.
    >>> 
    >>  What do you consider legal and why wouldn't it be?

    Florian> Casting a pointer from float to int can result in
    Florian> undefined behavior on some implementations.

I can't see why. Can you elaborate on that? I mean, casting on the
machine code level does just nothing - it's just "syntactic sugar" to
convince the compiler to be quiet. I think casting from one pointer
type to another does no harm at all. Am I wrong?

-- 
Claudio Bley                                 ASCII ribbon campaign (")
Debian GNU/Linux advocate                     - against HTML email  X 
http://www.cs.uni-magdeburg.de/~bley/                     & vCards / \


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