Mark Mitchell <[EMAIL PROTECTED]> writes: | Gabriel Dos Reis wrote: | | > I agree with everything you have said. I suppose I'm a bit unclear | > about this: | > | > already defined. __value_cast<T> would just be an alias for | > static_cast<T> for non-vector types, but for vector types it would do a | > value-preserving conversion, even if C-style and static casts are | > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | > bit-preserving, for backwards compatibility. | > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | > | > in particular the last sentence. | | The point is that the existing Altivec and SPE cast syntax requires that | a C-style cast from one vector type to another be bit-preserving. So, | we can't change that (or static_casts, which are the kind of C++ cast | that are using to implement this kind of C-style cast) without breaking | backwards compatibility.
Thanks for the clarification! -- Gaby
