On Apr 9, 2012, at 10:46 PM, Andrei Alexandrescu <[email protected]> wrote:
> On 4/9/12 9:42 PM, Jason House wrote: >> From a safety perspective, passing strict literals as "const ref" is >> fine. There is no output to discard. I have a vague impression that >> the restriction was put in place to allow some kind of optimization. >> I bet it's discussed in TDPL somewhere... > > Rvalues masquerading as references to constant values have caused enormous > harm to C++, culminating in the "fix" that was rvalue references. > > Let's not repeat that values. Rvalues are rvalues and should stay that way. I have never seen an explanation of D's lack of rvalue references longer than this. Is there any online explanation/blog describing how this neatly avoids the need for the solution from C++? There has to be more to it than just creating a temporary variable when the compiler issues an error. _______________________________________________ dmd-beta mailing list [email protected] http://lists.puremagic.com/mailman/listinfo/dmd-beta
