On 03/16/2012 06:33 PM, Manu wrote:
On 16 March 2012 18:37, Andrei Alexandrescu <seewebsiteforem...@erdani.org <mailto:seewebsiteforem...@erdani.org>> wrote:Actually, as has been mentioned, swizzling can be done very nicely inside the language. How?
Use opDispatch. a = a.yxwz;
The only example I saw in this thread was your from()/to() approach, which Timon said didn't actually work...?
It does work for assigning to simple variables, but not for assigning to more general expressions.
... In terms of benchmarks (the quantity of value you are looking for), it probably won't make so much difference to existing code, because people avoid returning structs by value like the plague It's just something you simply don't do. But if it were a real feature that were reliable, I can see it quickly replace returning through references passed in the parameter list (a horrible concept conceptually, effectively a hack),
DMD does that for you (Walter is the inventor of NRVO).
