Jeff Garland wrote:
On Mon, 30 Aug 2004 13:25:51 +0200, Markus Schöpflin wrote
...
[lib.facets.examples] doesn't say so but most examples I could find either have a default constructor or a constructor taking a reference count.
I'm not sure where you are seeing these examples, but if you looking in libs/date_time/test/gregroian/testfacet.cpp I don't think you will find any default constructors.
Maybe you can send me some of the errors you are getting -- onlist or off -- your choice?
I'll be trying to make myself more clear this time. Currently, not all date_time tests compile with tru64cxx65. This is because of a problem in the RW std library used on that platform. I now have received a patch from HP which should fix the problem. But the patch now requires a user defined facet to be default constructible, which the date_time facets are not. Therefore, the tests still won't compile. I now was wondering what the standard actually requires of a user defined facet (IOW if the date_time facets are legal) and all I could find was [lib.facets.examples] which isn't really much. Therefore I looked around a little more for other examples of user defined facets (besides date_time) and most of the examples I found were either default constructible or had a constructor which takes a refs argument. Therefore I decided to ask what the standard actually requires of a user defined facet. Currently I'm thinking that both facets below are legal according to the C++ standard and therefore that the error I'm still getting on my platform is a problem of the std library and not of date_time. ---%<--- #include <locale> struct foo : std::locale::facet { static std::locale::id id; }; struct bar : std::locale::facet { static std::locale::id id; bar(int) { } }; std::locale::id foo::id; std::locale::id bar::id; int main() { std::use_facet<foo>(std::locale()); std::use_facet<bar>(std::locale()); return 0; } --->%--- Sorry for any confusion I might have caused... Markus