2009/10/20 Matthew Chambers <matthew.chambers@vanderbilt.edu>
Peder Holt wrote:
It now compiles without warnings, also for classes with virtual members. Operator support is added for operator*. http://codepad.org/A4vaAMPZ
Regards Peder
Very nice. Do you know how reliable your reliance on UB is on the major
platforms? If it works on MSVC 9+, GCC 4.1, and darwin, that's enough for me.
I guess the only way to find out is testing the method on several compilers and setups. My assumptions are as follows: I assume that the address of a member in class A relative to the address of A is the same for all instances of A. I also assume that if you have multiple inheritance etc. this will hold for all classes in the inheritance hierarchy.
This holds for the simple test cases that I have made, but I have no guarantee that this is true for all cases. Here is a link to the test battery that I have been using to test this with GCC and VC8. If anyone has suggestions to scenarios that I haven't covered or wants to try this out on their favorite compiler, please do so. http://codepad.org/xDx64zRE Do you plan to have a macro for defining simple/trivial properties with a
single line? A more sophisticated macro could define the functions to use for the getter/setter (similar to how Managed C++ and C++/CLI do it AFAIK). Just like in C#, it encourages good design from the start of an implementation: the first iteration can use properties backed by simple member variables, while future implementations may use a more complicated backend without the interface ever needing to change (and without resorting to set/get syntax). That allows the design focus at first to be on the interface instead of worrying about doing a good job on both the interface and the implementation.
Creating the simple macros is no problem, but we first have to find out if properties has a place in C++ and with what syntax, and if this is the way to go to solve the problem.
-Matt _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost