Re: [Algorithms] How to get 3dvector largest coordinate index?

[Gino v. d. B. <gin...@gm...>]

My bad. It's the C99 standard, not the C++98 standard.

"The following are unspecified: ... The value of a union member other 
than the last one stored into (6.2.6.1)."

liam mail wrote:
>
>
> 2009/3/6 Gino van den Bergen <gin...@gm... 
> <mailto:gin...@gm...>>
>
>     Aliasing is having multiple references to the same memory location. 
>
>  
>
>     "Call me reckless but I just do not believe that
>     strict-aliasing on union fields will be exploited by a C++
>     compiler any
>     time soon."
>
> Thank you I know what aliasing is, but as I said I do not see what 
> this has to do with your comment as the standard guarantees the same 
> space is in use.
>
>
>     According to the C++ standard a compiler would be allowed to fetch
>     pun.i
>     before pun.f has been written 
>
>  
>
>     and the result would contain garbage
>     instead of the bit-representation of x. 
>
>
> Would you mind quoting or pointing me to the part of the standard 
> which implies this.
>
> Liam
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