Re: Vector types and type conversions

[Joe Buck <Joe dot Buck at synopsys dot COM>]

On Wed, Apr 19, 2006 at 01:56:46PM -0700, Mark Mitchell wrote:
> Let's accept that both the bit-preserving and value-preserving
> conversions would be useful.  How do we differentiate the two?
> 
> In C++, we could invent __value_cast<T> and __bitwise_cast<T>.  For
> example, __bitwise_cast<int>(3.0f) would be defined as equivalent to:
> 
>   ({
>      union {
>       int i;
>       float f;
>      } temp;
>      temp.f = 3.0f;
>      temp.i;
>    })

Those concepts roughly correspond to the existing static_cast and
reinterpret_cast.