Yes, in proto v4 contexts are not necessary. They can, in some circumstances, be easier to work with then transforms, so I don't plan to remove them. They may even be better at compile time. Make sense indeed. It may solve my other problem then. I need to perform SIMD computation onto my matrix element. For scalar, proto provided the appropriate overload for let's say +,-,*,/ and so on. I think hat using visitor may solve the problem of selecing the proper form of operation on the fly.
There are non-trivial changes, yes. Most significantly, the protocol for implementing custom transforms has changed. Also, a bunch of functions and types have been renamed as a result of review feedback. So, I better change now and adapt my code ? How can the v4 be downloaded ?
Not sure what you mean. Can you give an example? I had the impression that terminal helds value by reference until it get transformed and turne dinto value.
Absolutely. A proto transform *IS* a semantic action. Ok then, the arguments are clear now :)
-- Joel FALCOU Research Engineer @ Institut d'Electronique Fondamentale Université PARIS SUD XI France